Graphic Cards AMD HD7XXX Discussion Thread

Interview: Eric Demers and GCN

Rage3D.com : Eric Demers and GCN, Part II [ Triangles, Tesselation and Cache ]

Eric: You can get CPU bound, it's also a new architecture for us so there are other bottlenecks we're going to address over the coming months so it'll keep on getting better. The heuristics it's using are fundamentally different from our previous architecture, there are easier parts and there are parts that we're still working on. There's a lot, in fact we've got some games that have gone up 5-fold in performance since we started, from August to now, in drive changes to take advantage of the architecture. Probably another 2-3 months for us will really allow us to showcase the card. In one of the presentations you saw that performance changes, typically 15-40% - in this generation you'll see bigger numbers
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7970 should be available at some shops in India by mid or at most late jan. worst comes worst early feb though that is a rare possibility
 
HD 7950 Specs "Tahiti":

The HD 7950 will have 1792 stream processors, 28 GCN compute units, which is down 256 stream processors from the HD 7970. It will utilize a 384-bit memory bus and 3GB GDDR5 just like the HD 7970. The HD 7950 looks to utilize 112 texture units and 32 full color ROPs. It has support for a maximum of 6 displays. What is still unknown at this time is the core clock speed, memory clock speed and price point. With the HD 7970 set to release around $550, I would expect the HD 7950 to fall closer to the $400 price mark at release.

HD 7990 Specs "New Zealand":

AMD is working on the monster HD 7990, which will utilize two HD 7970's and 6GB of total graphics memory (3 GB per GPU system). If AMD will indeed go for the HD 7970, this could mean that the card will include 62 compute units for a total of 4096 stream processors, 256 texture units and 64 full color ROPs.
 
AMD-Radeon-HD-7000-Product-Family-Specifications-Leaked-4.jpg


AMD-Radeon-HD-7000-Product-Family-Specifications-Leaked-4.jpg


Yesterday, we brought you some basic info regarding the Radeon HD 7000-series graphics cards that AMD plans to launch in the first quarter of 2012, and today we entered into the possession of some new documents detailing the specs of these upcoming GPUs.

The docs were provided by the Lenzfire Website and cover all the graphics cards based on the GCN architecture that AMD plans to unveil in the first half of 2012.

As many of you surely know, the first solution from the HD 7900 series to arrive will be the HD 7970 and HD 7950, which will both become available on January 9.

We are not going to get into too many details as far as these GPUs are concerned as we already covered them in previous reports, but it’s worth mentioning that March 2012 will mark the introduction of a special HD 7950 that comes with “just†1.5GB of GDDR5 VRAM and which will retail for 399$ (308 EUR).

Right below the high-performance HD 7970 and HD 7950 will come the HD 7800 product line which will be comprised out of four graphics cards.

It’s interesting to note that the highest performing of these, the Radeon HD 7890 is based on the LE version of the Tahiti graphics core, the same one used for the HD 7900-series, and now on the Pitcairn GPU of the remaining HD 7800 solutions.

Just as it’s the case with the HD 7950, the HD 7850 will also be available in two different versions, one featuring just 1GB of video buffer compared to the 2GB used for its older brother.

Finally, the last graphics cards in AMD’s HD 7000 lineup to be based on the GCN architecture are found in the HD 7700 series.

Three solutions will be available in total, one based on the Pitcairn LE GPU, while the other two use the Cape Verde graphics core. All these three graphics cards feature 1GB of VRAM.

Detailed specifications, prices and the approximate release dates are found in the two tables accompanying this article
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AMD Radeon HD 7000 Product Family Specifications Leaked - Softpedia
 
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