Question on the R6xx

[tEd]

I think this question fits in this thread

What are some of the requirements of d3d10 for texture formats and filtering and blending?

I heard fp32 blending is required.
depth stencil format is.
32bit z-buffer maybe?
fp16 filtering yes or no , fp32 is optional i know
Is MSAA gonna be a requirement?

 

[Geo]

http://www.elitebastards.com/forum/viewtopic.php?p=192764&sid=07aa35bb4e6003ee48d52d0255f1230f#192764

Here's another "wise guy" rejecting "R600" as the name.

Should we just go ahead and agree on "R620" now then and get it out of the way?

 

[superguy]

Remember that a Xenos shader unit only can do 1 scalar + 1 vec4 - 64 Xenos like shader processors will not be able to match the r580. I money is on 96 or 128 units

Well, the ALU's in Xenos are all full function. R580 has 96 ALU's, but half are "mini".

Exactly how useful those mini-ALU's are in relation to the full ATI ALU's is an exercise in futility. Believe me I've tried.

But 64 "full" ALU's in R580 in R600 might possibly equal R580..though I strongly doubt it.

My bet would be 96..

 

[Megadrive1988]

<dreams of 128 ALUs in R600 with redundancy, with being 96 active>

 

[SugarCoat]

http://www.elitebastards.com/forum/viewtopic.php?p=192764&sid=07aa35bb4e6003ee48d52d0255f1230f#192764

Here's another "wise guy" rejecting "R600" as the name.

Should we just go ahead and agree on "R620" now then and get it out of the way?

meh, i just refer to it as the "R600 series", that way i have all my basis covered.

 

[Ailuros]

Speculating over unit amounts w/o specifying what each can do sounds errrr....interesting. How about a different approach? Like something over 400 GFLOPs/s as a starting point?

 

[overclocked]

Im raising that with 50Gflops

...

 

[Ailuros]

I was extremely conservative obviously. But when you have an estimated threshold it's easier to speculate on amount of units and what each might be capable of.