Caporegime
- Joined
- 18 Oct 2002
- Posts
- 33,188
I think you misunderstanding what I'm saying...
Not really, you said they might have to sacrifice die space for more memory, thats simply....... wrong.
You don't turn off 2 shader clusters, and thats what it is, turned off, not cut out and its only being made with 448sp's, to have more memory.
Maybe you meant, memory bus? which is very different, again, the core HAS 512sp's anda 384mbit mem bus, turning off one doesn't make the other magically work. You turn off a shader cluster, because they aren't working. Its not even a power thing, Tesla part, paralel processing is more important. More shaders at a lower clock and voltage would be faster than less shaders at a higher clock. So if they were just trying to sneak under 225W, they've be dropping clocks, not shaders. They fact they've dropped non working shaders and its STILL 225W, is just, bad, bad, bad news. It means yields are terrible anyway, its simply too big for the process with too much leakage making too many shaders unviable. The clock speeds added to leakage mean power usage is just ridiculous.