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X1950XTX beats the 8800GTS @ 2560x1600 4xAA - Page 6

post #51 of 53
A couple of things this new processor can do are perform the same functions we used to with the previous graphics pipeline, such as vertex shader computations and pixel shader computations. Why stop there though? Since this processor is actually a multifunction floating point processor we can tell it to perform other types of programs as well. One new feature with Shader Model 4.0 in DirectX 10 is the inclusion of a new shader called a “geometry shader.” The geometry shader lets you work on triangles as a whole basically, after the vertex shader sets up the vertices. The geometry shader can replicate triangles or deform them at their vertices before pixel shading is applied. So let’s go ahead and tell this processor that it can do geometry shaders as well. Ok, so we have the required shader capability for every shader that is supported in DirectX now, so let’s keep adding functions! Let’s also tell this floating point processor that I want it to do physics simulation data, in fact let’s just assume that new programs in the future will be possible and we can just add in support for them later!

Now you have just opened up a world of new possibilities that can go way beyond just graphics acceleration. In the previous graphics pipeline you would have to add completely new “units” into the diagram, and would require some major re-working of your architecture. With this new Unified Architecture idea however the addition of new features and capability is made much easier and more efficient. We still have the ROP and memory part of the pipeline of course, you can’t escape the need to calculate Z, filter and antialias textures yet, and memory storage space will be needed in the foreseeable future
post #52 of 53
Quote:
Originally Posted by Pwnjohnson View Post
The G80 has a seperate geometry processor entirely, whatre you talking about?
I wrote that wrong. I said previously that everything i was stating was from articles I'd read. The article stated that the g80 would have a seperate pipeline, and the r600 would use unused pipelines to do geometry. I also said that that was as of time of writing the article. So it was subject to change. Thats what I was talking about.
    
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post #53 of 53
I was always an ATI fan
    
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