Thursday, December 8th 2011
AMD Radeon HD 7900 ''Tahiti'' Pictured, 384-bit Memory Bus Confirmed?
A Beyond3D forum member posted a mysterious picture of two graphics cards that could very well be engineering samples of AMD's true next-generation Radeon HD 7900 "Tahiti" graphics cards. The final products most probably won't look like these, with a bare red PCB, but it does look like the reference cooler design is ready. A more important feature in that picture is the spotting of traces for at least 11 memory chips, the 12th one (not highlighted) is apparently near the PCIe slot interface. The presence of 12 memory chips gives rumors of Tahiti featuring a 384-bit wide memory interface a shot in the arm. This will be the first AMD GPU in over 5 years to feature a memory bus wider than 256-bit. The R600 Radeon HD 2900 GPU featured a 512-bit GDDR4-capable memory interface.
Sources:
Beyond3D Forums, VR-Zone
117 Comments on AMD Radeon HD 7900 ''Tahiti'' Pictured, 384-bit Memory Bus Confirmed?
For expect at least it will be have 1200mhz memory frequency, so how much be the total bandwidh??
No way only PCI-E 3.0 right !
just wonder why they need 384 bit as current used 256 provided enough bandwidth is the gpu not so good as expected or too powerfull?
REAL Final Specs for AMD's GCN Lineup. Release date set for December with shipping products in January
HD7970 ( Tahiti XT )
Core's 2048 operate at 1GHz clock
3GB of GDDR5 memory at 5.5GHz
Memory Bandwidth 264GB/s
Memory Bus Width 384-bits
Texture Units 128
ROPs 64
Manufacturing Process TSMC 28nm
Price $449
HD7950 ( Tahiti Pro )
Core's 1920 operate at 900MHz clock
3GB of GDDR5 memory at 5.0GHz
Memory Bandwidth 240GB/s
Memory Bus Width 384-bits
Texture Units 120
ROPs 60
Manufacturing Process TSMC 28nm
Price $349
HD7990 ( New Zealand ) HD7970 X2 Double all specs "March Realease"
6GB of GDDR5 memory at 5.5GHz
Price $699.
LINK--> www.brightsideofnews.com/news/2011/11/30/radeon-hd-7000-revealed-amd-to-mix-gcn-with-vliw4--vliw5-architectures.aspx
Other Site say this...
LINK--> www.asrotech.com/2011/09/07/radeon-hd-7900-series-will-be-released-in-q1-of-2012/
So if this is the 7970 i really hope they changed it too how they normally are. I think there is a good chance of them changing it as the 6970 VRM's have a much less heat issue than the cards before.
The HD6990s box cooler is just well... a box cooler with a sticker and a NOISY fan :| (not that the 5970 was quiet eh)
PC's have now like over xxx times the power of a console and they still lack games that trully use all that power , of course except 1-2 games.
We are in for a shock when a new generetation of consoles arrives with a HD6850 or GTX460 and blows away everything PC's had until that day , we will probably need a crossfire of these things to play on medium those console games.
Maybe I'm naive, but I think that next gen consoles will have more in common with PC (graphics API, eg: Xbox and Windows) and thus, PC-ports will have better relative performance.
with the same density memory modules, you'd get:
256 bit with 1GB or 2GB ram
yet with the same density on a 384 bit bus, you'd have 50% more ram for:
1.5GB/3GB
while they may not need the bandwidth, the 50% greater ram is far more cost effective than doubling to 2GB on all the cards.