Originally Posted by dboythagr8
CPU bottleneck with a 2600k @ 4.5ghz??
Edit: Guess you were right about MP. I tried a couple of SP missions in BF3 and my GPU usage was 98-99% on both cards. Getting frames well over 110fps which is very nice, and what I was looking for with this setup. The points you brought up about MP make sense and I never thought of it like that. Playing the SP campaign made me feel a bit better with the performance:thumb:
Cool, glad you're feeling better about it.
And yeah ... you can't just look at the hardware and say you will or won't have a CPU BN in any universal sense. The app you run, the settings, and all manner of other 'stuff' comes into play in the equation. Two GTX580's in SLI are a TON of GPU power, and SLI inherently adds quite a bit of CPU overhead due to management of two cards.
Add to that the fact that so many games/benches really only make use of 2 (or sometimes even 1) core efficiently on your CPU ... and the fact that multi-player adds a good amount of work for your CPU on top of it ... for SURE there will be occasional situations where a measurable CPU BN effect comes into play with your rig.
As an example, try running 3dMark06 sometime, and vary your CPU clocks from like 3.0 to 4.5 and look at what happens with your FPS on all the gfx tests (esp. 1 and 2) ... granted that's an extreme example because it's such an old test, but ... the principle can still apply in other scenarios. You'd have seen it in Skyrim if you'd run pre-1.4 version of the game, just like I did, and almost everyone else in the world Edited by brettjv - 2/6/12 at 9:01am