ATi bekrefter Xenos (XBox360) teknologi i R6xx

[MistaPi]

At a recent analyst session ATI’s Senior Vice President and General Manager of PC Group, Rick Bergman, has confirmed that their next generation of PC graphics products will feature much of the technology developed for "Xenos", ATI’s XBOX 360 graphics chip. We’ve surmised that this is likely be the case previously, given that Xenos utilises a unified shader architecture at the hardware level, with both Pixel Shaders and Vertex shaders utilising the same ALU resources it becomes a ripe time to implement it with DirectX10 unifying the vertex and pixel shader programming capabilities in the API.

 

Vertex and pixel processing have previously always been separate hardware functions, though vertex processing moved from a software based solution to hardware with the introduction of NVIDIA’s GeForce 256 and has subsequently got closer to the pixel processing capability with each revision of DirectX Shader Model, to the point where DirextX10 will should dictate the same programming capabilities across both. Even with this being the case there is nothing to suggest that the hardware has to be unified for processing as pixel operations generally have to hide greater latencies than vertex operations thanks to the greater use of texturing in the pipeline. However, Xenos’s design has attempted to remove the texture latency issues from shader programmes by creating a highly threaded design that separates texture instructions from ALU instructions, allowing multiple shader batches to run concurrently, and so it comes as no surprise that ATI should adopt this architecture for the PC, seeing as the investment has already been made.

 

Mer info om Xenos finner du her:

http://www.beyond3d.com/articles/xenos/

[HKS]

Dette er vel ikke noen nyhet...

 

Har vel vært klart ganske lenge at R6xx bygger på R500 (Xenos) og R400

[MistaPi]

Det har ikke vært klart før nå nei, men ganske sannsynlig. Xenos arkitekturen er i stor grad en samarbeid med MS og tilpasset en konsoll plattform, så det er i det minste nyhetsverdig etter mitt syn at mye av teknologien vil finne veien til R6xx.

For mange på dette forumet er nok dette uansett en nyhet.

 

Edit: Arbeidsnavnet var faktisk C1 og ikke R500.

Endret 26. februar 2006 av MistaPi