Monday, July 17th 2023
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.
Sources:
Moore's Law is Dead (YouTube), VideoCardz
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.
59 Comments on AMD Planning September Launch for Radeon RX 7800 series and RX 7700 series
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I was starting to worry that AMD had cold feet with GPU-based MCM, after the issues with Navi31 not clocking as intended - the unexpected artifacting that couldn't be fixed in software requiring them to dial it back by 10-15 from the originally-intended performance and clocks.
Do we know if this coming Navi32 is the cited respin with hardware fixes to tackle the clocking artifacts, or is this just the original silicon run that's limited to ~2.5GHz?
The official $279 MSRP of the RX 7600 wasn't awful against the selling price of the outgoing 6650XT and 6600XT, but the street pricing drop to $249 makes it a compelling buy among the 8GB competition and heavily-discounted Ampere stock that's still selling.
AMD don't need to compete with the 40-series on price, they know they need to compete with the entire open GPU market.
Average clock from reviews is already 300mhz over that? More unconfirmed bs about bad silicon.
If you already have a DX 12 Ultimate GPU, there aren't a lot of new features added to get excited about (not even DLSS 3 seems that interesting, to be fair).
It's possible we're looking at "diminishing returns" from the tech world: there's not much left to innovate.
If you want argue they missed their power target sure. Chalk it up to semantics, but from what I’ve seen and personal experience 7900xt/XTX can regularly hit the 3ghz mark. There definitely isn’t a “2.5ghz limit” cuz of bad silicon.
There’s air and water cooled cards between 3000-3100 mhz on UL leaderboards, which is just slightly under to over 30% in average raw clock speed vs the 6900XT. There are users showing ~3100 in cyberpunk 4K with RT at 411w. There are also other records pushing the card on exotic cooling above 3.3ghz+. Sure it uses a lot of power, new design, and worse node than ada, but there is certainly no 2.5ghz clock speed limit.
If you go through most of the reviews on TPU, on average for clock speeds the 7900 XTX has a 20% average lead over the 6900XT. AMD and Nvidia like to make loose claims all the time, never trust them.