Remember when Sony said the PS3 would render at 120 fps? Forget it, 240fps

[Groucho]

NJ5 said:

Groucho said:

NJ5 said:

@Groucho: Why so aggressive? And why are you throwing in a third false claim for my amusement?

a single PPU thread (which is only 1.6 GHz, not 3.2 GHz)

Bzzt, wrong again. Simultaneous multi-threading doesn't mean thread gets works as if it had half the clockrate. The whole point of SMT is to get both threads as close as possible to using the whole CPU for themselves (with the obvious constraints).

I really suggest you read some more before you embarass yourself again.

PS: I'd also suggest that you be a bit clearer next time, you didn't make it clear at all that you were comparing 6 SPUs vs 1 PPU (an unfair comparison I may add).

 

Interesting, you're telling me the hardware threading on the PPU doesn't alternate threads each cycle?  That's something I certainly wasn't aware of.

 

Yes, that's exactly what I'm telling you. SMT does fine-grained division of the CPU's resources, for example thread 1 uses the memory access hardware while thread 2 does a calculation.

http://en.wikipedia.org/wiki/Simultaneous_multithreading

However, I'm actually finding some conflicting sources on this. I'm not sure whether the PPE does interleaved or simultaneous multi-threading anymore, so you may be right on this one (in that case apologies in advance).

 

 

Its interleaved.  Man I *wish* it was simultaneous.