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Vastarmor Radeon RX 7900 XTX Super Alloy Card Reaches Retail in China

Vastarmor's Radeon RX 7900 XTX Super Alloy custom model was revealed a while back (four months ago according to VideoCardz)—for whatever reason, it has taken a long time for finalized units to reach retail outlets in China. A newly discovered JD.com listing reveals an interesting price point of 6799 RMB (~$940)—given the Radeon RX 7900 XTX GPU's age at this point in time, Vastarmor has implemented quite a steep discount over the launch MSRP for Chinese markets (7999 RMB). The premium tier ARGB-appointed "Super Alloy" models sport substantial custom cooling solutions—clearly designed to temper higher boost clocks. VideoCardz has looked at the best Navi 31-based cards on the field: "(Vastarmor's latest) is actually among the fastest models on the market. Currently, the highest boost clock for RX 7900 XTX is 2680 MHz, and it can be found on models like ASRock Taichi, Aqua, PowerColor Liquid Devil, or Sapphire Nitro+."

The RX 7900 XTX Super Alloy is one of the largest high-end gaming graphics cards out there—it is a triple-slot, 330 mm x 134 mm x 69 mm design. Strangely, Vastarmor's reference specced RX 7900 XTX Starry Sky model also sports a similarly-proportioned cooling solution. ZOTAC's Prime Gamer Force (PGF) OC design remains triumphant in terms of stupendous dimensions—check out these digits: 381 mm (L) x 154 mm (W) x 74 mm (D)! ZOTAC PGF cards are Chinese market exclusives—much like Vastarmor's best offerings—only the most hardcore/deep-pocked enthusiasts outside of the PRC will be importing these vast gaming hardware delights.

XFX Announces Radeon RX 7900 GRE Graphics Card

XFX today launched its Radeon RX 7900 GRE graphics card. Although the custom-design card sticks with the company's RX 7000 series Speedster MERC board design, XFX did not assign a brand extension to this card. The card's styling appears identical to the RX 7800 XT Speedster QICK 319 Core Edition, a card it very likely shares most of its board design with. The RX 7900 GRE is based on a compact "Navi 31" package that's rumored to be pin-compatible with the "Navi 32," which is why most custom RX 7900 GRE cards appear to have board designs closer to their RX 7800 XT counterparts, than to custom RX 7900 XT cards.

The XFX RX 7900 GRE is 33.5 cm long, 13 cm tall, and is 3 slots thick. It features an aluminium fin-stack heatsink that appears identical to that of the RX 7800 XT QICK 319, ventilated by a trio of fans. XFX has given the RX 7900 GRE factory overclocked speeds of 2052 MHz Game clocks, compared to 1880 MHz reference Game clocks; while leaving the memory untouched at 18 Gbps. The card draws power from a pair of 8-pin PCIe power connectors. Display outputs include three DisplayPort 2.1 and one HDMI 2.1. The company didn't reveal pricing.

AMD Announces Wider Launch of Radeon RX 7900 GRE, Adjusts Pricing of RX 7700 XT

AMD today announced wider availability of the Radeon RX 7900 GRE (Golden Rabbit Edition) graphics card. The card is now available in certain western markets including in Europe and North America; although AMD wouldn't call this a global launch. The card was originally designed as a limited edition product meant for the Chinese market, and has been available there since July 2023. The decision to launch the card in other markets may have been driven by NVIDIA's January launch of the GeForce RTX 4070 SUPER and RTX 4070 Ti SUPER, which have caused cascading price cuts among the older RTX 4070, RTX 4070 Ti; and AMD's RX 7800 XT, creating a rather big gap between this card and the RX 7900 XT, which is probably why AMD decided to launch the RX 7900 GRE at $550.

AMD carved the RX 7900 GRE from the "Navi 31" silicon powering the RX 7900 series, by disabling two MCDs (instead of disabling just one on the RX 7900 XT); which results in a 256-bit memory bus, which drives 16 GB of 18 Gbps GDDR6 memory, for 576 GB/s of memory bandwidth. The GCD sees 80 out of 96 compute units (CU) being enabled, for 5,120 stream processors, 320 TMUs, 160 AI accelerators, and 80 Ray accelerators. The card is configured with 160 out of 192 ROPs present on the silicon. The total board power (TBP) is set to 260 W, which is about the same as the RX 7800 XT; but there are 33% more shaders to go around. Several AMD board partners are expected to announce their custom RX 7900 GRE cards today, with market availability slated for tomorrow, February 27, 2024. Although AMD is known to have a reference design card, it is expected to be confined to the OEM/SI channel. In addition, AMD also cut the official MSRP of the RX 7700 XT to $419.

Our "launch" day reviews of the Radeon RX 7900 GRE include: Sapphire RX 7900 GRE NITRO+ | ASRock RX 7900 GRE Steel Legend | Sapphire RX 7900 GRE Pure | Sapphire RX 7900 GRE Pulse

AMD Radeon RX 7900 GRE To Launch Globally on February 27

AMD's Radeon RX 7900 GRE, or Golden Rabbit Edition, which was previously available only to the Chinese market, will launch globally on February 27. According to the leaked slides, the Radeon RX 7900 GRE will launch at $549, and AMD is comparing it to the NVIDIA GeForce RTX 4070 non-SUPER graphics card. In case you missed it, the AMD Radeon RX 7900 GRE is based on the Navi 31 XL GPU with 80 Compute Units (CUs), which leaves it with 5120 Stream Processors, and comes with 16 GB of 18 Gbps GDDR6 memory on a 256-bit memory interface, which adds up to a maximum bandwidth of 576 GB/s. The Radeon RX 7900 GRE should fit nicely between the Radeon RX 7900 XT and the Radeon RX 7800 XT.

According to the leaked slides, AMD is comparing the Radeon RX 7900 GRE against the NVIDIA GeForce RTX 4070 non-SUPER, which now shares the same price after the recent $50 price cut. According to AMD's own slides, the Radeon RX 7900 GRE should provide around 14 percent more performance per buck on average, and is between 1 and 32 percent faster, at least in games tested by AMD.

AMD Radeon RX 7900 GRE Reference Model Pops Up in UK

The AMD Radeon RX 7900 GRE 16 GB reference model has reached UK shores, albeit very briefly and with a very low stock count—e-tailer AWD-IT Gaming PC (ADMI Ltd.) was the first shop in the region to offer XFX's Navi 31 XL partner card. Team Red's formerly Chinese market-exclusive Radeon RDNA 3 GPU has made its way West—as of late last year—but retail presence in Europe is less than inspiring. Circumstances could change—recent rumblings indicate that more custom options are incoming—GIGABYTE is readying a Gaming OC variant, possibly paving the way for a wider release through mainstream channels. PowerColor's Hellhound Radeon RX 7900 GRE OC model has also been spotted on European price comparison engines.

UK buyers were treated to an initial batch of a dozen (or fewer) XFX Radeon RX 7900 GRE Reference graphics card, at £659.99 (~$832) including VAT and free delivery. AWD-IT's listing is inactive at the time of writing, but the SKU remains as a searchable asset on their web store. It appears that curious UK hardware enthusiasts have snapped up the first round of Golden Rabbit Edition (GRE) curiosities, although the price point was nowhere near as attractive when lined up against past offerings within EU mainlands. For example, Italy's PSK Mega Store had reference stock priced at €542.66 (~$585) a piece, with a digital copy of AVATAR: Frontiers of Pandora bundled in. The XFX Radeon RX 7900 XT 20 GB SPEEDSTER MERC 310 model is currently discounted—£699.99 via Ebuyer UK—representing a very tempting higher-specced custom design prospect (going for only £40 more than the RX 7900 GRE) .

GIGABYTE Intros Radeon RX 7900 GRE Gaming OC, European Availability Expected

GIGABYTE is ready with its first custom design graphics card based on the AMD Radeon RX 7900 GRE (Golden Rabbit Edition). Originally designed for the Chinese domestic market, the RX 7900 GRE is finding its way across other Asian markets, and is also available in Europe. This GIGABYTE graphics card could be among the RX 7900 GRE cards to make it to the old continent. The card's design resembles that of the company's RX 7800 XT Gaming OC, which is slightly smaller than that of the RX 7900 XT Gaming OC. It features a triple-slot WindForce 3X cooling solution with a dual aluminium fin-stack heatsink that uses a copper base-plate, four heatpipes, and a trio of 80 mm fans. The card is about 30 cm long, 13 cm tall, and 5.6 cm thick. It uses a pair of 8-pin PCIe power connectors.

The Radeon RX 7900 GRE is based on the "Navi 31" XL silicon, which is essentially the "Navi 31" chiplet GPU on a compact package that's about the size of a "Navi 32." AMD designed this smaller package for its mobile RX 7900 series SKUs. The RX 7900 GRE is configured with 80 RDNA3 compute units, which make up 5,120 stream processors, 160 AI accelerators, 80 Ray accelerators, and 320 TMUs. It gets the full 192 ROP count of the silicon. The SKU only has four out of six MCDs (memory cache dies) enabled, which gives it 64 MB of Infinity Cache, and a 256-bit wide memory bus, driving 16 GB of 18 Gbps GDDR6 for 576 GB/s of memory bandwidth. The total board power (TBP) of the RX 7900 GRE is configured at 260 W, which is about the same as that of the RX 7800 XT. The GIGABYTE Gaming OC card is expected to come with a slight factory overclock for the GPU.

PowerColor Hellhound Radeon RX 7900 GRE OC Lined up for Possible EU Wide Release

It seems that AMD and its board partners are continuing to rollout new custom graphics cards based on the formerly China market exclusive Radeon RX 7900 GRE 16 GB GPU—PowerColor unleashed its fiendish flagship Red Devil model as one of last September's launch options. Their Chinese website has been updated with another Navi 31 XL entry—Hellhound Radeon RX 7900 GRE OC. This design sits below the Red Devil in the company's graphics card product and pricing hierarchy; providing excellent cooling performance with fewer frills. The latest custom RX 7900 GRE card borrows PowerColor's existing demonic dog design from the mid-tier Hellhound RX 7800 XT and RX 7700 XT models. The Hellhound enclosure deployed on Radeon RX 7900 XTX and RX 7900 XT GPUs is a much chunkier affair.

The PowerColor Hellhound Radeon RX 7900 GRE OC has also popped up on a couple of UK and mainland Europe price comparison engines (published 2024-01-30), so it possible that a very limited release could occur across a small smattering of countries and retail channels—Proshop Denmark seems to be the first place with cards in stock, pricing is €629.90 (~$682) at the time of writing. The Radeon RX 7900 GRE (Golden Rabbit Edition) GPU sits in an awkward spot between the fancier Navi 31 options, and Navi 32 siblings—AMD and its AIB partners have reduced MSRPs in Europe, possibly in reaction to the recent launch of NVIDIA's GeForce RTX 40 SUPER series. We are not sure if this initiative has boosted the RX 7900 GRE's popularity in this region, since very few outlets actually offer the (XFX-produced) reference model or Sapphire's Pulse custom design.

AMD Radeon RX 7900 GRE - More Custom Models Emerge at European E-tailers

AMD unveiled its Golden Rabbit Edition (GRE) Radeon RX 7900 GPU last summer—this Navi 31 XL-based card was first launched in China, with only a handful of customized options and a reference model (produced by XFX) available at the starting line. It later emerged that Team Red's special SKU (celebrating the Year of the Rabbit) would be heading West; by Autumn-time, system integrators in Europe started to sell full PC systems outfitted with Radeon RX 7900 GRE graphics cards. By late 2023, a small smattering of board partner versions hit the European market in proper retail form—you no longer had to shell out €1500+ for a pre-built system in order to gain access to an exclusive model. Team Red's almost parallel launch of its Radeon RX 7800 XT GPU has overshadowed the slightly more powerful RDNA 3 model's limited release.

VideoCardz has received tips about price cuts affecting certain Radeon RX 7900 GRE models, and a new retail entry for an ASRock custom design. AMD has started to adjust its pricing at the higher mid-tier and flagship GPU level, in reaction to NVIDIA rolling out GeForce RTX 40 SUPER cards this month. This initiative has affected the Radeon RX 7900 GRE as well, despite its very restricted availability in Western markets. The article points to an example of the reference design with its price falling by ~€60 (over a two month period)—Italy's PSK Mega Store's offer currently sits at €542.66. The lowest price in Spanish and German markets appears to be €579—CoolMod Espagna has Sapphire's Pulse Radeon RX 7900 GRE Gaming OC 16 GB card listed at €579.95; it also qualifies for the AVATAR: Frontiers of Pandora promotion. Mindfactory DE lists a mysterious ASRock Radeon RX 7900 GRE Challenger 16 GB OC Edition model (SKU 90-GA52ZZ-00UANF), ready to purchase and ship out immediately at €579. Photos of this twin-fan custom model can be viewed at Skinflint UK.

AMD Radeon RX 7900 XT Drops to $710 on Newegg, MSRP Lowered to $749

AMD has lowered the official MSRP of the Radeon RX 7900 XT graphics card to $749, down from its launch price of $899. Its street price, as TweakTown found out, is lower still, with certain custom-design RX 7900 XT cards selling for as low as $710 on Newegg. At this price, the RX 7900 XT is set up for a major clash with certain overclocked NVIDIA GeForce RTX 4070 SUPER graphics cards, leftover inventories of the recently retired GeForce RTX 4070 Ti, and probably even looks to soak up some sales before the RTX 4070 Ti SUPER hits the scene on January 24. The cheapest RX 7900 XT is actually one of the better-appointed custom designs out there, the ASRock RX 7900 XT Phantom Gaming and XFX RX 7900 XT Merc 319, which had originally launched at prices comparable to the PowerColor Hellhound. These are followed by the PowerColor RX 7900 XT Hellhound and Sapphire RX 7900 XT Pulse OC at $720.

The Radeon RX 7900 XT is a very capable high-end GPU that AMD categorizes as capable of 4K Ultra HD gaming with settings maxed out. It's carved out from the "Navi 31" chiplet GPU, and configured with 84 RDNA3 compute units, worth 5,376 stream processors, 168 AI accelerators, 84 Ray accelerators, 336 TMUs, and 192 ROPs. The best part about this card is its memory sub-system, with 80 MB of Infinity Cache, and 20 GB of 20 Gbps GDDR6 memory across a 320-bit wide memory bus with 800 GB/s of bandwidth on tap, which should come in handy at 4K, or when using creator or AI applications.

AMD SVP States that RDNA 3 Portfolio Complete Following Launch of Radeon RX 7800 XT & 7700 XT

Scott Herkelman, senior vice president and general manager of AMD's Graphics Business Unit made a slightly unexpected announcement during an IGN live streamed discussion at Gamescom 2023. Following the official unveiling of Radeon RX 7800 XT and RX 7700 XT GPUs on Friday, Herkelman sat down for a brief interview regarding the future of Team Red's RDNA 3 generation—he was asked whether there were any additional Radeon RX 7000-series models on the horizon. In response he stated: "Well, the RDNA3 portfolio is now complete. Of all products that we have planned to launch, that is, this is the last few products that we will launch. We may have some different versions, but they are not a new ASIC…It's been a journey, it's been about a year since we launched the very first RDNA 3 and now we are a year later finishing up the series. We should be done, we are done and we are excited. And now I think we have a broad spectrum covered for people who want RDNA 3 up and down the price tag."

His announcement seemingly confirms that Team Red is satisfied enough to conclude RDNA 3 post the September 6 launch of their Navi 32-based Radeon RX 7800 XT and RX 7700 XT cards, with a grand total of a mere six desktop-oriented SKUs—Herkelman perhaps forgot to mention possible mobile variants. This is slightly odd given that non-XT Radeon RX 7800 and 7700 GPUs have cropped up via leaks in the recent past, and speculation has also pointed to a true entry-level RX 7500 model being in the works. Herkelman hinted that refreshed variants could be released down the road, perhaps akin to the mid-gen update of existing RDNA 2 ASICs (e.g RX 6700 XT -> RX 6750 XT). AMD may rely on its previous generation Radeon technology to fill in the gaps not occupied by RDNA 3—it is believed that an RX 6750 GRE graphics card (RX 6700 non-XT variant) is in the pipeline.

AMD "Navi 4C" GPU Detailed: Shader Engines are their own Chiplets

"Navi 4C" is a future high-end GPU from AMD that will likely not see the light of day, as the company is pivoting away from the high-end GPU segment with its next RDNA4 generation. For AMD to continue investing in the development of this GPU, the gaming graphics card segment should have posted better sales, especially in the high-end, which it didn't. Moore's Law is Dead scored details of what could have been a fascinating technological endeavor for AMD, in building a highly disaggregated GPU.

AMD's current "Navi 31" GPU sees a disaggregation of the main logic components of the GPU that benefit from the latest 5 nm foundry node to be located in a central Graphics Compute Die; surrounded by up to six little chiplets built on the older 6 nm foundry node, which contain segments of the GPU's Infinity Cache memory, and its memory interface—hence the name memory cache die. With "Navi 4C," AMD had intended to further disaggregate the GPU, identifying even more components on the GCD that can be spun out into chiplets; as well as breaking up the shader engines themselves into smaller self-contained chiplets (smaller dies == greater yields and lower foundry costs).

AMD Retreating from Enthusiast Graphics Segment with RDNA4?

AMD is rumored to be withdrawing from the enthusiast graphics segment with its next RDNA4 graphics architecture. This means there won't be a successor to its "Navi 31" silicon that competes at the high-end with NVIDIA; but rather one that competes in the performance segment and below. It's possible AMD isn't able to justify the cost of developing high-end GPUs to push enough volumes over the product lifecycle. The company's "Navi 21" GPU benefited from the crypto-currency mining swell, but just like with NVIDIA, the company isn't able to push enough GPUs at the high-end.

With RDNA4, the company will focus on specific segments of the market that sell the most, which would be the x700-series and below. This generation will be essentially similar to the RX 5000 series powered by RDNA1, which did enough to stir things up in NVIDIA's lineup, and trigger the introduction of the RTX 20 SUPER series. The next generation could see RDNA4 square off against NVIDIA's next-generation, and hopefully, Intel's Arc "Battlemage" family.

AMD Radeon RX 7900 GRE ASIC Smaller than Navi 31, Slightly Larger than Navi 21

The GPU at the heart of the China-exclusive AMD Radeon RX 7900 GRE (Golden Rabbit Edition) sparked much curiosity. It is a physically different GPU from the one found in desktop Radeon RX 7900 XT and RX 7900 XTX graphics cards. AMD wouldn't go through all that effort designing a whole different GPU just for a limited edition graphics card, which means this silicon could find greater use for the company—for example, this could be the package AMD uses for its upcoming mobile RX 7900 series. AMD wouldn't go through all the effort designing a first-party MBA (made by AMD) PCB for the silicon just for the RX 7900 GRE, and so this PCB, with this particular version of the "Navi 31" silicon, could see a wider global launch, probably as the rumored Radeon RX 7800 XT, or something else (although with a different set of specs from the RX 7900 GRE).

We compared the sizes of the new "Navi 31" package found in the RX 7900 GRE, with those of the regular "Navi 31" powering the RX 7900 XT/XTX, the previous-generation "Navi 21" powering the RX 6900 XT, and the NVIDIA AD103 silicon powering the desktop GeForce RTX 4080. There are some interesting findings. The new smaller "Navi 31" package is visibly smaller than the one powering the RX 7900 XT/XTX. It is a square package, compared to the larger rectangular one, and has a significantly thinner metal reinforcement brace. What's interesting is that the 5 nm GCD is still surrounded by six 6 nm MCDs. We don't know if they've disabled two of the six MCDs, or whether they're dummies. AMD uses dummy chiplets as structural reinforcement in some of its EPYC server processors. The dummies spread some of the mounting pressure applied by the IHS or cooling solution, so the logic behind surrounding the GCD with six of these MCDs could be the same.

AMD Radeon RX 7900 GRE Configured with 80 CU?

AMD's upcoming China-exclusive Radeon RX 7900 GRE (Golden Rabbit Edition) graphics card is reportedly configured with 80 compute units (CU), and not the previously thought 84, according to a leaked TechPowerUp GPU-Z screenshot. While GPU-Z 2.54.0 isn't fully aware of the RX 7900 GRE, and can get some hard-coded details (such as release dates) wrong, since it has the ability to detect "Navi 31" and the RX 7900 series, it is able to count the compute units.

The screenshot describes the RX 7900 GRE as featuring 80 CU, or 5,120 stream processors—the same count as the previous-gen RX 6900 XT, but based on the newer RDNA3 graphics architecture. Also detected are a TMU count of 320, ROP count of 80 (a vast reduction from the 192 available on the silicon, if true). We've known from older reports that the RX 7900 GRE is configured with a 256-bit wide GDDR6 memory interface, holding 16 GB of video memory. What's new is that while the RX 7900 XT and RX 7900 XTX use 20 Gbps memory, the RX 7900 GRE is given slower 18 Gbps memory, as detected by GPU-Z. This results in a memory bandwidth of 576 GB/s, a significant reduction from the 960 GB/s enjoyed by the RX 7900 XTX.

AMD Radeon RX 7900 GRE Could be Introduced at ChinaJoy 2023 Conference

AMD's Chinese office has announced that company representatives will be present at this year's ChinaJoy event—their Weibo social media account confirmed that: "from July 28th to July 31st, 2023, in Hall E6 of Shanghai New International Expo Center, super hardcore and mega cool AMD hardware will be on the scene, bringing you a fast and fun gaming experience. We are looking forward to meeting you!" ITHome thinks that the timing of this announcement points to a possible official unveiling of the Radeon RX 7900 GRE (Golden Rabbit Edition) on the showroom floor.

The publication has cited a tip provided by the one and only momomo_us—the Chinese market exclusive Golden Rabbit Edition will be released tomorrow, which lines up with ChinaJoy 2023's kick off time. Recent leaks have revealed that the 84 Compute Units + 16 GB configured graphics card is a new SKU, sitting below the RX 7900 XT in Team Red's Radeon RDNA 3 hierarchy. It seems to be "built on the mysterious Navi 31 + Navi 32 hybrid GPU." Additionally, ITHome reports that AMD has partnered up with ASUS, and will be exhibiting ROG Moba 7 Plus series laptops (sporting Ryzen Dragon Range APUs) at the Shanghai event.

Sapphire Radeon RX 7900 GRE Pictured: A Unique China-specific SKU

Here are some of the first pictures of the Sapphire Radeon RX 7900 GRE, a unique China-specific product that isn't just its own Sapphire custom-design, but also a whole different SKU. We first learned about the existence of the RX 7900 GRE earlier this month, and this would be one of its first custom design implementations. The Golden Rabbit Edition (GRE), is a limited edition SKU of the Radeon RX 7900 series. It's neither the RX 7900 XTX nor the RX 7900 XT, but positioned a notch below the latter. Based on the same "Navi 31" silicon as the two, the RX 7900 GRE is equipped with 84 CU (5,376 stream processors), or the same GCD core-configuration as the RX 7900 XT. It however, gets just 16 GB of memory, across a narrower 256-bit wide memory bus.

The Radeon RX 7900 GRE is carved out of the "Navi 31" by disabling two of the six MCDs, which reduces the Infinity Cache size to 64 MB, and the GDDR6 memory bus width to 256-bit. The 5 nm GCD is carried over from the RX 7900 XT—you get 5,376 stream processors, 168 AI accelerators, 84 Ray accelerators, 336 TMUs, and 192 ROPs. It is possible that the Sapphire RX 7900 GRE uses a variation of the company's NITRO+ cooling solution that's similar to the NITRO+ Lite SKUs available in markets outside China. The key difference here is that the cooler lacks a vapor-chamber plate, and instead uses a solid copper base-plate to pull heat from the GPU and memory. AMD needs to fill the vast gap in its product stack between the $250 RX 7600 and the $700+ RX 7900 XT, and SKUs such as the RX 7900 GRE could help it compete better against the likes of the RTX 4070 Ti in competitive markets such as China.

AMD Reportedly Prepping Special Radeon RX 7900 GRE Model for Chinese Market

A reference to an unreleased Radeon RX 7900 GRE GPU specced with 16 GB of VRAM appeared on distributed computing platforms last month. The unusual GRE acronym was a little bit puzzling, but ITHome has recently discovered that this could be the successor to an older GME (Golden Mouse Edition) card. AMD's Radeon RX 590 GME design was released back in March of 2020 to celebrate the year of the Rat or Mouse.

The Chinese zodiac sign for 2023 is the rabbit, hence AMD preparing a Golden Rabbit Edition (GRE) for that territory. ITHome proposes that this Radeon RX 7900 non-XT model could field a cut-down version of Team Red's Navi 31 GPU—with its Compute Unit count possibly reduced slightly below the standard 84 CUs, while an allocation of 16 GB of GDDR6 video memory gets coupled to a 256-bit interface (down from the XT's 20 GB and 320-bit). The short report does not provide any release date information or detailed specifications/features, but we can assume that the GRE is highly likely to arrive within the year it is intended to commemorate.

AMD Planning September Launch for Radeon RX 7800 series and RX 7700 series

AMD is planning to plug the Atlantic gap between its mainstream Radeon RX 7600 and enthusiast-class RX 7900 XT with the RX 7800 series and RX 7700 series, with either an announcement or teaser planned for 2023 Gamescom, which is scheduled for August. There could be up to four new graphics card SKUs announced, with their product launches spread across Q3 and Q4 2023. The "Navi 32" MCM is expected to power at least three of these SKUs, while it was recently rumored that AMD could design a new GPU that has the GCD of the "Navi 31" on the package of "Navi 32" with its four MCDs, to end up with a higher CU count than what the "Navi 32" can offer.

The "Navi 32" GPU is an MCM, just like the "Navi 31" powering the RX 7900 series. It is rumored to feature a 5 nm GCD (graphics compute die) with 60 RDNA3 compute units, which work out to 3,840 stream processors, 120 AI accelerators, 60 Ray Accelerators, 240 TMUs, and possibly 128 ROPs. The four 6 nm MCDs give it 64 MB of Infinity Cache, and a 256-bit wide GDDR6 memory interface. Assuming the RX 7800 XT uses the unnamed new MCM with the GCD of the "Navi 31" that has a CU count somewhere between 60 and 72, a maxed-out "Navi 32" could power the RX 7800, while its cut-down variants power the RX 7700 XT and RX 7700.

Radeon RX 7800 XT Based on New ASIC with Navi 31 GCD on Navi 32 Package?

AMD Radeon RX 7800 XT will be a much-needed performance-segment addition to the company's Radeon RX 7000-series, which has a massive performance gap between the enthusiast-class RX 7900 series, and the mainstream RX 7600. A report by "Moore's Law is Dead" makes a sensational claim that it is based on a whole new ASIC that's neither the "Navi 31" powering the RX 7900 series, nor the "Navi 32" designed for lower performance tiers, but something in between. This GPU will be AMD's answer to the "AD103." Apparently, the GPU features the same exact 350 mm² graphics compute die (GCD) as the "Navi 31," but on a smaller package resembling that of the "Navi 32." This large GCD is surrounded by four MCDs (memory cache dies), which amount to a 256-bit wide GDDR6 memory interface, and 64 MB of 2nd Gen Infinity Cache memory.

The GCD physically features 96 RDNA3 compute units, but AMD's product managers now have the ability to give the RX 7800 XT a much higher CU count than that of the "Navi 32," while being lower than that of the RX 7900 XT (which is configured with 84). It's rumored that the smaller "Navi 32" GCD tops out at 60 CU (3,840 stream processors), so the new ASIC will enable the RX 7800 XT to have a CU count anywhere between 60 to 84. The resulting RX 7800 XT could have an ASIC with a lower manufacturing cost than that of a theoretical Navi 31 with two disabled MCDs (>60 mm² of wasted 6 nm dies), and even if it ends up performing within 10% of the RX 7900 XT (and matching the GeForce RTX 4070 Ti in the process), it would do so with better pricing headroom. The same ASIC could even power mobile RX 7900 series, where the smaller package and narrower memory bus will conserve precious PCB footprint.

AMD Radeon RX 7600 GPU Has Better Cache & VRAM Latency Than RX 7900 XTX

Chips and Cheese published their very in-depth review of AMD's Radeon RX 7600 GPU last weekend - a team member (Jiray) took it upon themselves to actually buy the card, since a sample unit was not supplied for evaluation. The site's exploration of this graphics processing unit on an architectural level revealed a couple of positive aspects - which comes as a minor surprise since the Radeon RX 7600 received a generally lukewarm reception upon launch at the end of last month. Thanks to the Radeon RX 7600's Navi 33 XL GPU being a monolithic chip it seems to outpace—in terms of cache and memory latency performance—chiplet-based designs as featured in the vastly more powerful (and expensive) Radeon RX 7900-series cards.

Factoring in the smaller space that the RDNA 3 Navi 33 die occupies - it seems that it gains an advantage over the flagship card. Chips and Cheese reports that AMD's RX 7900 XTX takes up to 58% longer to access and pull data from its pool of Infinity Cache, when contrasted with the recently released sibling. The RX 7600 GPU exhibits 15% lower VRAM latencies compared to the RX 7900 XTX when retrieving data from the onboard GDDR6 VRAM chiplets. The review points to a greater disparity between current high-end and mid-range cards when looking back at equivalent models from the preceding generation: "The difference is especially large with RDNA 3. With RDNA 2, the RX 6900 XT had 151.57 ns of Infinity Cache latency compared to 130 ns on the RX 6600 XT, or a 16.5% latency penalty for the larger GPU." Chips and Cheese reckons that AMD's Navi 31's "chiplet configuration may be causing higher latency."

Volt-modded RX 7900 XTX Hits 3.46 GHz, Trades Blows with RTX 4090

An AMD Radeon RX 7900 XTX graphics card is capable of trading blows with NVIDIA GeForce RTX 4090, as overclocker jedi95 found out. With its power limits unlocked, the RX 7900 XTX was found reaching engine clocks as high as 3.46 GHz, significantly beyond the "architected for 3.00 GHz" claim AMD made in its product unveil last Fall. At these frequencies, the RX 7900 XTX is found to trade blows with the RTX 4090, a segment above its current segment rival, the RTX 4080.

Squeezing 3.46 GHz out of the RX 7900 XTX is no child's play, jedi95 used an Elmor EVC2SE module for volt-modding an ASUS TUF Gaming RX 7900 XTX, essentially removing its power-limit altogether. He then supplemented the card's power supply, so it could draw as much as 708 W (peak), to hold its nearly 1 GHz overclock. A surprising aspect of this feat is that an exotic cooling solution, such as liquid-nitrogen evaporator, wasn't used. A full-coverage water block and DIY liquid cooling did the job. The feat drops a major hint at how AMD could design the upcoming Radeon RX 7950 XTX despite having maxed out the "Navi 31" silicon with the RX 7900 XTX. The company could re-architect the power-supply design to significantly increase power limits, and possibly even get the GPU to boost to around the 3 GHz-mark.

More Radeon RX 7000 Series Graphics Cards Spotted in ROCm 5.6

A bunch of unreleased AMD Radeon RX 7000 series graphics card have been spotted in ROCm 5.6 pull request, including the Radeon RX 7950 XTX, 7950 XT, 7800 XT, 7700 XT, 7600 XT, and 7500 XT. AMD has not yet launched its mainstream Radeon RX 7000 graphics cards, but according to the latest pull request, there are several unreleased graphics cards in for both high-end and mainstream segments. While the pull request has been removed from GitHub, it has been saved on Reddit. So far, it appears that AMD's RDNA 3 Radeon 7000 series lineup will be based on just three GPUs, Navi 33, Navi 32, and the Navi 31.

According to the list, we can expect a high-end refresh with Radeon RX 7950 XTX/XT version, also based on Navi 31 GPU. The list also shows that the Radeon RX 7800 series will be the only one based on the Navi 32 GPU, at least for now, while the Navi 33 GPU should cover the entire mainstream lineup, including the Radeon RX 7700 series, Radeon RX 7600 series, and the Radeon RX 7500 series. The list only includes XT versions, while non-XT should show up later, as it was the case with the Radeon RX 6000 series graphics cards. AMD's President and CEO, Dr. Lisa Su, already confirmed during Q1 2023 earnings call that mainstream Radeon RX 7000 series GPUs based on RDNA 3 architecture will launch during this quarter, and earlier rumors suggest we might see them at Computex 2023.

Powercolor RX 7900 XTX Hellhound White Edition GPU Incoming

Powercolor has teased an upcoming reveal, set to happen on April 11, for a White Hellhound Edition of what appears to be (hash-tagged) an AMD Radeon RX 7900 XTX graphics card. A single image of the soon to be revealed model was uploaded to various Powercolor social media sites today. The Specral White colorway is likely applied to the PCB, backplate, fans, bracket and shroud. Powercolor has a consistent history of releasing all-white Hellhound edition cards - quite the rare aesthetic in this market segment.

The current black version of the Hellhound AMD Radeon RX 7900 XTX was released last December. The upcoming Specral White iteration seems to share the same LED switching system and twin 8-pin PCIe power inputs - as seen in the teaser image. By and large the specification and feature sets are anticipated to be identical between each model.

MSI Radeon RX 7900 XTX Gaming Trio Classic Listed at $1100

MSI Radeon RX 7900 XTX Gaming Trio Classic, the company's first Radeon 7000 series RDNA3 graphics card, is finally listed online. American retailer Newegg put it up for sale at $1,100, a $100 premium over the $1000 AMD baseline price for the RX 7900 XTX. This is a "sold and shipped by Newegg" listing. MSI showed this card off last month, at the 2023 International CES. It pairs a custom-design PCB with a previous-generation Tri Frozr 2.0 cooling solution—the same one it used with its RX 6950 XT Gaming series. The PCB, however, is an MSI in-house design, with a meaty VRM that draws power from three 8-pin PCIe power connectors, and should hence feature a higher power-limit than the reference-design board, which has been known to scoop out a far greater overclocking headroom on other cards with a similar power setup (such as the ASUS TUF Gaming RX 7900 XTX).

The MSI RX 7900 XTX Gaming Trio Classic comes with clock speeds of 2.30 GHz game, and 2.50 GHz boost, which surprisingly are AMD's reference clocks. Perhaps MSI is saving factory-overclocks for the RX 7900 XTX Gaming X Trio Classic, which it will price even higher. Maxing out the 5 nm "Navi 31" GPU, the RX 7900 XTX offers 6,144 stream processors across 96 RDNA3 compute units, with 96 Ray Accelerators, 384 TMUs, 192 ROPs, and a 384-bit wide GDDR6 memory interface, running 24 GB of memory at 20 Gbps (960 GB/s memory bandwidth).

AMD "Navi 31" Memory Cache Die Has Preparation for 3D Vertical Cache?

AMD possibly has a straightforward path to increasing the performance of the "Navi 31" RDNA3 GPU to power future high-end SKUs, according to semiconductor engineer Tom Wassick. The GPU's main SIMD machinery is located in the Graphics Compute Die (GCD) built on the 5 nm EUV foundry process, surrounded by six Memory Cache Dies (MCDs) built on 6 nm, which each contain GDDR6 memory controllers, and a 16 MB segment of the GPU's 96 MB Infinity Cache memory.

In microscopic observations, Wassick noticed structures on the MCD which he thinks look like an array of through-silicon vias (TSVs), of the kind used in "Zen 3" and "Zen 4" CCDs, to wire out stacked 3D Vertical Cache memory on the L3D (L3 cache die). If the theory holds up, it could be possible for AMD to increase the L3 cache segment size per MCD from 16 MB, and the GPU's overall Infinity Cache memory size. With its RDNA2 graphics architecture (RX 6000 series), AMD significantly enlarged on-die caches on its GPUs, particularly the last-level L3 cache, even giving them the special branding of "Infinity Cache," claiming that they had a big impact in lubricating the memory sub-system, letting GPUs with 256-bit memory buses compete with NVIDIA GPUs with wider 320-bit to 384-bit interfaces.
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