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AMD's January GPU launch includes the dual-GPU R680  (Source: AMD)
Get ready to enter 2008 with a bang: AMD has a bunch of GPUs on the way

AMD's newest R680 graphics processor might look a whole lot like the ill-fated R600 GPU, but the reality couldn't be more bizarre.  Instead of one 80nm behemoth-of-a-GPU, the R680 consists of two 55nm processor cores.

Representatives from AMD would not confirm that the R680 is essentially two RV670 GPU cores on the same board, though the company did confirm that each core has the same specifications of an RV670 processor.

The RV670 graphics core, announced last November with the Phenom processor, is the first 55nm desktop graphics adaptor.  AMD does not target this card as a high-end adaptor, though reviewers were quick to herald the RV670 as AMD's best product of 2007.

The company also made quick mention of the RV620 and RV635 GPU cores.  These cores are nearly identical to the previous RV610 and RV630 processors, but will be produced on the 55nm node instead. 

All three of AMD's new GPUs are scheduled to launch next month. 

Dual-GPU technology is not new.  3dfx's flagship Voodoo 5 family also resorted to multiple processors to achieve its relatively high performance.  ASUS, Gigabyte, Sapphire, HIS and PowerColor all introduced dual-GPU configurations of just about every graphics processor on the market, though these were never "sanctioned" ATI or NVIDIA projects.  Ultimately, all of these projects were canned due to long development times and low demand.

Cross-state rival NVIDIA isn't sitting on idle hands though, either.   The company publicly announced plans to replace all 90nm G80 graphics cores with G92 derivatives by the end of the year.  G92's debut introduction, GeForce 8800 GT, met wild support from reviewers and analysts alike.  G92's second introduce, GeForce 8800 GTS 512MB, was met with similar but less enthusiastic acceptance during Tuesday's launch.

NVIDIA's newest roadmap claims the DirectX 10.1 family of 65nm processors will also hit store shelves this Spring.  The chipsets -- codenamed D9E, D9M and D9P -- are architecturally different from the G80/G92 family.



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RE: hmm
By DallasTexas on 12/14/2007 10:48:09 AM , Rating: -1
This is all primitive technology anyway and don't look to Intel to come up with a me too. Raster Graphics is DEAD END.

Intel will likely blow away the field with Ray Traced graphics - the hole grail.

All these pipes to approximate a raster image is a big yawn. Factor in the 100's of Watts and it's a disaster. I do not want these silly heat generators in my box to shoot cartoons at 60 fps.


RE: hmm
By Proteusza on 12/14/2007 11:25:26 AM , Rating: 5
Even if you use ray tracing instead of traditional lighting and shading, you still need to rasterize graphics to display them on the screen.

Rasterization refers to extracting colour information from the screen into discrete pixels, so they can be displayed on the screen.


RE: hmm
By DallasTexas on 12/15/2007 11:14:22 AM , Rating: 2
Really? I thought Raster Graphic images are data structures based on rectangles. Maybe we are talking about different things or someone needs to update the encyclopedia.


RE: hmm
By spluurfg on 12/20/2007 11:17:24 AM , Rating: 3
Rasterization is the process of translating vectors/triangles into pixels. It is only part of a modern day graphics engine, which includes a geometry/transform/clipping/lighting and also shading.

Consider the old ATI Fire GL4 which had independent processors for the geometry engine (IBM GT1000) and rasterizer (IBM RC1000).


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