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CPU Bottlenecking my Video Card? - Page 2

post #11 of 15
BF3 hates my CPU too. I have an unlocked x3 705e to a pII x4 "05e" running at 3.4. My GPU usage hovers around 40 to 50% on each card and CPU usage slammed around 100%. Metro was alot smoother with GPU usage around 80% and CPU around 90%. I had to find 48 player servers on the Beta to get Caspian to play smooth. Overclocking from 3.2 that I had it on originally to 3.5 made a great improvement and much more playable but still a bottleneck
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post #12 of 15
I've noticed for some weird reason the unlocked phenom II x2s are getting bottlenecked pretty hard by anything past a 6950/560 even though they are "technically" a x4. Its really tricky to tell sometimes when unlocking because of unstable cores because even though I can run LinX for 24 hours I still have some random instability issues.

This is just my opinion but I've honestly been very disappointed with my B60..
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post #13 of 15
Just another point of fact, some games will use 2, some 3, some 4, some something else, if you have more cores than the game can use you will never see your cpu getting maxed out. Even when it is the limiting factor, even in dual core games one thread can stall the other.
    
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post #14 of 15
Quote:
Originally Posted by BallaTheFeared View Post
Just another point of fact, some games will use 2, some 3, some 4, some something else, if you have more cores than the game can use you will never see your cpu getting maxed out. Even when it is the limiting factor, even in dual core games one thread can stall the other.
not to sidetrack or anything, but would this mean that a triple core has no benefit at all over a dual core (assuming same series ie. phenom II) in single threaded games like starcraft 2?
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post #15 of 15
Well no, there are background tasks that eat up cycles as well.

AMD chips this generation benefit from an extra core over the number the game actually uses (SC2 uses 2).

The reason for that is because while you may be running a game, you are also running windows under it. Windows still needs some clock cycles, with an extra core to do these tasks improvements will be seen when the cpu is bottlenecking. For instance in SC2, a dual core Phenom II will be slower clock for clock than a tri core Phenom II. It's not because the game can use three cores, it's because the game and windows can.
    
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