• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Radeon HD 7900 Series to Use XDR2 Memory?

btarunr

Editor & Senior Moderator
Staff member
Joined
Oct 9, 2007
Messages
47,242 (7.55/day)
Location
Hyderabad, India
System Name RBMK-1000
Processor AMD Ryzen 7 5700G
Motherboard ASUS ROG Strix B450-E Gaming
Cooling DeepCool Gammax L240 V2
Memory 2x 8GB G.Skill Sniper X
Video Card(s) Palit GeForce RTX 2080 SUPER GameRock
Storage Western Digital Black NVMe 512GB
Display(s) BenQ 1440p 60 Hz 27-inch
Case Corsair Carbide 100R
Audio Device(s) ASUS SupremeFX S1220A
Power Supply Cooler Master MWE Gold 650W
Mouse ASUS ROG Strix Impact
Keyboard Gamdias Hermes E2
Software Windows 11 Pro
AMD's next-generation enthusiast graphics processor (GPU) is shaping up to be something more unique than expected. The GPU codenamed "Tahiti" is going to be bleeding-edge in terms of its feature-set. To begin with, there's talk that it will make use of PCI-Express Generation 3 (Gen 3) system bus, which will give it a mammoth 32 GB/s of system interface bandwidth. Next, Tahiti will use a number-crunching architecture that's a generation ahead of even the VLIW4 it released with Cayman. VLIW4 will make up for most of the HD 7000 series, but not the top-end Tahiti GPU, it will use what AMD is referring to as "CoreNext Architecture", which is expected to boost performance per square millimeter die area beyond even what VLIW4 manages.

The most recent piece of information is bound to shock and awe. Tahiti, it appears, will use the XDR2 memory interface. XDR2 is an ultra-high bandwidth and power-efficient memory bus that's competitive with GDDR5, maintained by Rambus, which is claimed by it to be a generation ahead of GDDR5. It's not like XDR2 will be exotic to AIBs, the XDR architecture is used in game consoles where the high-bandwidth offsets low memory capacity by allowing quick streaming of texture data. Rambus licenses XDR memory chip manufacture to notable high-volume vendors. Nordic Hardware compiled data from various unreliable sources to sketch out what Radeon HD 7900 series could look like.



View at TechPowerUp Main Site
 

btarunr

Editor & Senior Moderator
Staff member
Joined
Oct 9, 2007
Messages
47,242 (7.55/day)
Location
Hyderabad, India
System Name RBMK-1000
Processor AMD Ryzen 7 5700G
Motherboard ASUS ROG Strix B450-E Gaming
Cooling DeepCool Gammax L240 V2
Memory 2x 8GB G.Skill Sniper X
Video Card(s) Palit GeForce RTX 2080 SUPER GameRock
Storage Western Digital Black NVMe 512GB
Display(s) BenQ 1440p 60 Hz 27-inch
Case Corsair Carbide 100R
Audio Device(s) ASUS SupremeFX S1220A
Power Supply Cooler Master MWE Gold 650W
Mouse ASUS ROG Strix Impact
Keyboard Gamdias Hermes E2
Software Windows 11 Pro

eidairaman1

The Exiled Airman
Joined
Jul 2, 2007
Messages
42,211 (6.64/day)
Location
Republic of Texas (True Patriot)
System Name PCGOD
Processor AMD FX 8350@ 5.0GHz
Motherboard Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s) AMD Radeon 290 Sapphire Vapor-X
Storage Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s) NEC Multisync LCD 1700V (Display Port Adapter)
Case AeroCool Xpredator Evil Blue Edition
Audio Device(s) Creative Labs Sound Blaster ZxR
Power Supply Seasonic 1250 XM2 Series (XP3)
Mouse Roccat Kone XTD
Keyboard Roccat Ryos MK Pro
Software Windows 7 Pro 64
I think it would be best idea to release the XDR2 on lower models first n compare GDDR5 to XDR2 models.
 
Joined
Sep 12, 2011
Messages
10 (0.00/day)
Location
Johannesburg, South Africa
Processor Core i7 2600
Motherboard Intel DZ68DB
Cooling Coolermaster Hyper TX3 EVO
Memory 2 x 4GB Kingston (DDR3 @ 1333Mhz)
Video Card(s) Ati HD7850
Storage OCZ Vertex 4 (256GB)
Audio Device(s) Asus Xonar DX
Power Supply Corsair HX620W
Software Windows 8 (64Bit)
Legit?

 
Joined
Oct 30, 2008
Messages
1,768 (0.30/day)
System Name Lailalo
Processor Ryzen 9 5900X Boosts to 4.95Ghz
Motherboard Asus TUF Gaming X570-Plus (WIFI
Cooling Noctua
Memory 32GB DDR4 3200 Corsair Vengeance
Video Card(s) XFX 7900XT 20GB
Storage Samsung 970 Pro Plus 1TB, Crucial 1TB MX500 SSD, Segate 3TB
Display(s) LG Ultrawide 29in @ 2560x1080
Case Coolermaster Storm Sniper
Power Supply XPG 1000W
Mouse G602
Keyboard G510s
Software Windows 10 Pro / Windows 10 Home
Joined
Nov 1, 2008
Messages
477 (0.08/day)
System Name It does stuff
Processor Ryzen 3600
Motherboard B550 Gaming X V2
Cooling Stock
Memory 16GB DDR4 3600
Video Card(s) RX 6700XT
Storage Too much
Display(s) 27" & 21.5"
Case Antec 300
Power Supply 750W
Ugh, please don't help rambus survive :(
 

eidairaman1

The Exiled Airman
Joined
Jul 2, 2007
Messages
42,211 (6.64/day)
Location
Republic of Texas (True Patriot)
System Name PCGOD
Processor AMD FX 8350@ 5.0GHz
Motherboard Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s) AMD Radeon 290 Sapphire Vapor-X
Storage Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s) NEC Multisync LCD 1700V (Display Port Adapter)
Case AeroCool Xpredator Evil Blue Edition
Audio Device(s) Creative Labs Sound Blaster ZxR
Power Supply Seasonic 1250 XM2 Series (XP3)
Mouse Roccat Kone XTD
Keyboard Roccat Ryos MK Pro
Software Windows 7 Pro 64
Joined
Mar 11, 2008
Messages
947 (0.16/day)
Location
Hungary / Budapest
System Name Kincsem
Processor AMD Ryzen 9 9950X
Motherboard ASUS ProArt X870E-CREATOR WIFI
Cooling Be Quiet Dark Rock Pro 5
Memory Kingston Fury KF560C32RSK2-96 (2×48GB 6GHz)
Video Card(s) Sapphire AMD RX 7900 XT Pulse
Storage Samsung 970PRO 500GB + Samsung 980PRO 2TB + FURY Renegade 2TB+ Adata 2TB + WD Ultrastar HC550 16TB
Display(s) Acer QHD 27"@144Hz 1ms + UHD 27"@60Hz
Case Cooler Master CM 690 III
Power Supply Seasonic 1300W 80+ Gold Prime
Mouse Logitech G502 Hero
Keyboard HyperX Alloy Elite RGB
Software Windows 10-64
Benchmark Scores https://valid.x86.fr/ilvewh https://valid.x86.fr/4d8n02 X570 https://www.techpowerup.com/gpuz/g46uc
Can't be true
 
Joined
Mar 24, 2011
Messages
2,356 (0.47/day)
Location
VT
Processor Intel i7-10700k
Motherboard Gigabyte Aurorus Ultra z490
Cooling Corsair H100i RGB
Memory 32GB (4x8GB) Corsair Vengeance DDR4-3200MHz
Video Card(s) MSI Gaming Trio X 3070 LHR
Display(s) ASUS MG278Q / AOC G2590FX
Case Corsair X4000 iCue
Audio Device(s) Onboard
Power Supply Corsair RM650x 650W Fully Modular
Software Windows 10
cannot be confirmed at all, at this point is all speculation, just wait till the product comes out n talk about it

It says in the initial post that was speculation using projections.
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
19,579 (2.86/day)
Location
Piteå
System Name White DJ in Detroit
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Plantronics 5220, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!

hat

Enthusiast
Joined
Nov 20, 2006
Messages
21,745 (3.30/day)
Location
Ohio
System Name Starlifter :: Dragonfly
Processor i7 2600k 4.4GHz :: i5 10400
Motherboard ASUS P8P67 Pro :: ASUS Prime H570-Plus
Cooling Cryorig M9 :: Stock
Memory 4x4GB DDR3 2133 :: 2x8GB DDR4 2400
Video Card(s) PNY GTX1070 :: Integrated UHD 630
Storage Crucial MX500 1TB, 2x1TB Seagate RAID 0 :: Mushkin Enhanced 60GB SSD, 3x4TB Seagate HDD RAID5
Display(s) Onn 165hz 1080p :: Acer 1080p
Case Antec SOHO 1030B :: Old White Full Tower
Audio Device(s) Creative X-Fi Titanium Fatal1ty Pro - Bose Companion 2 Series III :: None
Power Supply FSP Hydro GE 550w :: EVGA Supernova 550
Software Windows 10 Pro - Plex Server on Dragonfly
Benchmark Scores >9000

If that turns out to be true, then it seems to me that they haven't really made any true performance improvements since the 5 series, and have yet again mostly "compressed" it down to get roughly similar performance with lower power consumption and heat output. I guess that's not all bad... the 5870 is still a hell of a raw performance card, and these will be too, but with power and heat improvements. Meanwhile, Nvidia will push further with cards with marginally more performance than the last generation while grappling with power consumption and heat output issues. This seems a more likely story than all the good stuff supposedly happening in the OP...
 

Syborfical

New Member
Joined
Oct 17, 2006
Messages
86 (0.01/day)
Why not? If they make good memory why not use it?

When PC's used rambus the licensing fees etc made it cost at least 4 times more the DDR at the time.

Rambus in PC's was short lived due to the high price and having to pay a high licensing fees, plus it had high latency compared to SDR and generated lots of heat.

So going from past products XDR may or may not be the same.
 
Joined
Oct 1, 2010
Messages
2,361 (0.46/day)
Location
Marlow, ENGLAND
System Name Chachamaru-IV | Retro Battlestation
Processor AMD Ryzen 9 5900X | Intel Pentium II 450MHz
Motherboard ASUS ROG STRIX X570-F Gaming | MSI MS-6116 (Intel 440BX chipset)
Cooling Noctua NH-D15 SE-AM4
Memory 32GB Corsair DDR4-3000 (16-20-20-38) | 512MB PC133 SDRAM
Video Card(s) nVIDIA GeForce RTX 4070 FE | 3dfx Voodoo3 3000
Storage 1TB WD_Black SN850 NVME SSD (OS), Toshiba 3TB (Storage), Toshiba 3TB (Steam)
Display(s) Samsung Odyssey G5 27" @ 1440p144 & Dell P2312H @ 1080p60
Case SilverStone Seta A1 | Beige box
Audio Device(s) Creative Sound Blaster AE-7 (Speakers), Creative Zen Hybrid headset | Sound Blaster AWE64
Power Supply EVGA Supernova 750 G2 | 250W ASETEC
Mouse Roccat Kone Air| Microsoft Serial Mouse v2.0A
Keyboard Vortex Race3 | Dell AT102W
Software Microsoft Windows 11 Pro | Microsoft Windows 98SE
But... we've already has a 7950...
 
Joined
Mar 2, 2009
Messages
5,061 (0.88/day)
Processor AMD Ryzen 5 7600
Motherboard Gigabyte B650 Aorus Elite AX
Cooling Thermalright Peerless Assassin 120 SE
Memory Kingston Fury Beast DDR5-5600 16GBx2
Video Card(s) Gigabyte Gaming OC AMD Radeon RX 7800 XT 16GB
Storage TEAMGROUP T-Force Z440 2TB, SPower A60 2TB, SPower A55 2TB, Seagate 4TBx2
Display(s) AOC 24G2 + Xitrix WFP-2415
Case Montech Air X
Audio Device(s) Realtek onboard
Power Supply Be Quiet! Pure Power 11 FM 750W 80+ Gold
Mouse Logitech G Pro X Superlight Wireless
Keyboard Royal Kludge RK-S98 Tri-Mode RGB Mechanical Keyboard
Software Windows 10
Joined
May 4, 2009
Messages
1,972 (0.35/day)
Location
Bulgaria
System Name penguin
Processor R7 5700G
Motherboard Asrock B450M Pro4
Cooling Some CM tower cooler that will fit my case
Memory 4 x 8GB Kingston HyperX Fury 2666MHz
Video Card(s) IGP
Storage ADATA SU800 512GB
Display(s) 27' LG
Case Zalman
Audio Device(s) stock
Power Supply Seasonic SS-620GM
Software win10

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
19,579 (2.86/day)
Location
Piteå
System Name White DJ in Detroit
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Plantronics 5220, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
When PC's used rambus the licensing fees etc made it cost at least 4 times more the DDR at the time.

Rambus in PC's was short lived due to the high price and having to pay a high licensing fees, plus it had high latency compared to SDR and generated lots of heat.

So going from past products XDR may or may not be the same.

As you say that was some time ago. They've not been very succesful after that (afaik) so maybe they have learned their lesson.

And if it's already in use in some consoles (is it PS3?) it's already on.
 
Joined
Apr 21, 2008
Messages
5,250 (0.87/day)
Location
IRAQ-Baghdad
System Name MASTER
Processor Core i7 3930k run at 4.4ghz
Motherboard Asus Rampage IV extreme
Cooling Corsair H100i
Memory 4x4G kingston hyperx beast 2400mhz
Video Card(s) 2X EVGA GTX680
Storage 2X Crusial M4 256g raid0, 1TbWD g, 2x500 WD B
Display(s) Samsung 27' 1080P LED 3D monitior 2ms
Case CoolerMaster Chosmos II
Audio Device(s) Creative sound blaster X-FI Titanum champion,Creative speakers 7.1 T7900
Power Supply Corsair 1200i, Logitch G500 Mouse, headset Corsair vengeance 1500
Software Win7 64bit Ultimate
Benchmark Scores 3d mark 2011: testing
Make it with 512bit and let me forget upgrad the gpu for 3 years.
 

the54thvoid

Super Intoxicated Moderator
Staff member
Joined
Dec 14, 2009
Messages
13,051 (2.39/day)
Location
Glasgow - home of formal profanity
Processor Ryzen 7800X3D
Motherboard MSI MAG Mortar B650 (wifi)
Cooling be quiet! Dark Rock Pro 4
Memory 32GB Kingston Fury
Video Card(s) Gainward RTX4070ti
Storage Seagate FireCuda 530 M.2 1TB / Samsumg 960 Pro M.2 512Gb
Display(s) LG 32" 165Hz 1440p GSYNC
Case Asus Prime AP201
Audio Device(s) On Board
Power Supply be quiet! Pure POwer M12 850w Gold (ATX3.0)
Software W10

Completely Bonkers

New Member
Joined
Feb 6, 2007
Messages
2,576 (0.40/day)
Processor Mysterious Engineering Prototype
Motherboard Intel 865
Cooling Custom block made in workshop
Memory Corsair XMS 2GB
Video Card(s) FireGL X3-256
Display(s) 1600x1200 SyncMaster x 2 = 3200x1200
Software Windows 2003
I don't mind waiting for this... and nV's next generation... so long as they can achieve the same performance at half the power consumption. Let's hope there is a 28nm 7770 with same performance of 6770 at half power. Or actually, even better would be speed bump of 33% whilst reducing power 33%. Or a GTX 660 with a speed bump of 33% whilst reducing power 33%. Current cards are too hot and too thirsty IMO. If I look back 10 years, then CPU power/performance ratios have improved better than GPUs, and that needs to be fixed.
 
Joined
Oct 27, 2007
Messages
1,132 (0.18/day)
System Name Grandpa
Processor i5 4690K
Motherboard Gigabyte Z97X-UD5H-BK
Cooling water
Memory 8GB Corsair Vengence 2400MHz
Video Card(s) Gigabyte 5850 x2
Storage Samsung SM951
Display(s) Catleap 27"
Case coolermaster stacker
Power Supply corsair AX860i
Mouse logitech g5 original
Keyboard Ducky
Software Windows 8.1
Top