There's a thread in General Hardware about the possibilities of future motherboards having dual AGP ports. First question, do you think it's architecurally acheivable? The AGP 3.0 spec seems to allow for it...
Secondly, there are some crazy people talking about bringing back SLI for cards such as the 9700. I was wondering about SLI for cards with T&L units, Vertex Shaders and Pixel Shaders. Would there be any performance increase for these applications if SLI was implemented?
My reasoning goes like this: To render alternate lines of a frame, both cards would need to perform the same shader calculations so the frames would be the same. There would not be any performance gains whatsoever in T&L limited applications as the cards are simply doing the same things as each other. To realise any performance gains the units would need to operate in parallel, requiring game engines to utilise parallel processing in their shader routines. This would also imply that whole frames would have to be interleaved rather than lines. (Like in the Rage Fury Maxx, I believe) If game engines could be written to take advantage of parallelism, would it reap any benefits?
That got a bit muddled...
I'm interested to see if my logic works anyway.
Cheers etc...
Secondly, there are some crazy people talking about bringing back SLI for cards such as the 9700. I was wondering about SLI for cards with T&L units, Vertex Shaders and Pixel Shaders. Would there be any performance increase for these applications if SLI was implemented?
My reasoning goes like this: To render alternate lines of a frame, both cards would need to perform the same shader calculations so the frames would be the same. There would not be any performance gains whatsoever in T&L limited applications as the cards are simply doing the same things as each other. To realise any performance gains the units would need to operate in parallel, requiring game engines to utilise parallel processing in their shader routines. This would also imply that whole frames would have to be interleaved rather than lines. (Like in the Rage Fury Maxx, I believe) If game engines could be written to take advantage of parallelism, would it reap any benefits?
That got a bit muddled...
I'm interested to see if my logic works anyway.
Cheers etc...
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