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GTX 560 Ti Zotac being bottlenecked by E8400 @ 3.6Ghz

post #1 of 11
Thread Starter 
so, i got my gtx 560 from zotac at 822-1645-2004
i have upgraded from gtx 275 evga and still using an asus p5q-e with Core 2 Duo E8400 at 3.6ghz and 4X1gb OCZ ram
the load on the GPU, according to evga precision tool and gpuz, averages around 25%, sometimes went to 50-60, but stays at 20-29 most of the time.
i have a ocz modxstream pro 500W with 18A in 12v, and at full load 170W, the 560 needs 14.1A.
im really wondering if the gpu is being bottlenecked by this once amazing awsome processor. any ideas?
EDIT: forgot to add that bc2 plays horribly (for this gpu) at a 36 fps , and whats even wierder, no matter the settings, it still stutters and runs at 36-40 fps, and the stuttering is defiently not an fps problem, since 36-40 is acceptable, but not for this card, and not that any settings? not even at max with 2xaa this card should out 60fps constant
Edited by chcolatesnw - 5/6/11 at 7:10pm
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post #2 of 11
Quote:
Originally Posted by chcolatesnw View Post
so, i got my gtx 560 from zotac at 822-1645-2004
i have upgraded from gtx 275 evga and still using an asus p5q-e with Core 2 Duo E8400 at 3.6ghz and 4X1gb OCZ ram
the load on the GPU, according to evga precision tool and gpuz, averages around 25%, sometimes went to 50-60, but stays at 20-29 most of the time.
i have a ocz modxstream pro 500W with 18A in 12v, and at full load 170W, the 560 needs 14.1A.
im really wondering if the gpu is being bottlenecked by this once amazing awsome processor. any ideas?
Most likely yes... Atleast I know my e7500 severly bottlenecks my 5850
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post #3 of 11
Thread Starter 
i have checked heaven benchmark and with default settings, normal tesselation 4xaniso 0xaa and 1080p, it uses 99% gpu, so why wouldnt it bottleneck there? could it be the games or the drivers or maybe even win7? also uses 99% in furmark, so please anyone could this be software related and not hardware?
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post #4 of 11
Quote:
Originally Posted by chcolatesnw View Post
i have checked heaven benchmark and with default settings, normal tesselation 4xaniso 0xaa and 1080p, it uses 99% gpu, so why wouldnt it bottleneck there? could it be the games or the drivers or maybe even win7? also uses 99% in furmark, so please anyone could this be software related and not hardware?
Furmark and Heaven are designed to use just the gpu and not the cpu.
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post #5 of 11
Thread Starter 
hmm, yea but furmark still uses cpu, quite a lot, and also i ran dragon age 2 and runs quite well, 70-95% gpu usage, with 1080p 2xaa maxaniso highres texture pack and directx11 very high at around 39-51, with avg 46 fps with vsync on, im quite satisfied. anyway, if it is a bc2 problem, could it be solved by reinstalling it or win7?
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post #6 of 11
Are you using the WHQL 270.61 drivers? IIRC they have a well documented issue with BC2.
post #7 of 11
Thread Starter 
yea im using the latest ones, anyway seems that bfbc2 is better now, i set fov back to 60 from 90 that it was and i guess since it has to render less, it runs smoother... i dunno its no more stuttering and lowest fps in the high 38-39, avg 43 ish anyway, theres another problem now, my pc has had some shutdowns i get in event id some kernel power event id 41 (63). before i switched my video card, it had some errrors before the above critical, but now it didnt. this happens when i played bc2 now, and before on bc2 and tf2 while i had the gtx 275.
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post #8 of 11
Your dual core is absolutely a bottleneck, when I had my dual core it could barely handle processing the sounds. BC2 is a true quad-core game.

Even when I went from a low end dual core to the lowest quad core but had the same card *9600 GT* performance nearly tripled.

Now I'm on a 2.8 quad and I have a 560, BC2 uses about 80% of each core I have and I play at 1920x1080, 4xAA, 8x anisotropic, Vsync on, every other setting max, I literally average 60 fps, I have on occasion seen the game go down to 53, but it's rare and things were going on that warranted the drop such as lots of explosions ect..

GPU usage fluctuates between 45% and 68%

As for stuttering, I noticed it actually does stutter but only the first 2-4 seconds of a map after it loads then it's smooth as butter the entire time. I want to stress I'm not exaggerating about how smooth it is and the framerate I'm getting, I've been monitoring it every time I play.

Also, BC2's default 16:9 FoV actually didn't seem cramped so I never changed it.
Edited by Ascii Aficionado - 5/7/11 at 7:14am
post #9 of 11
As mentioned, it's a BC2 issue.

The game takes a lot of CPU power to run it, it makes good use of quads, and Fermi cards are famous for getting low GPU usage when playing it online (there's a sticky at the top of the forum about it, and I'd say someone has come onto this board making the same complaint about low GPU usage in BC2 pretty much every single day for the past year or so )

So, yeah ... it's mostly a CPU BN issue on that particular game, but the low GPU usage is also a well-known nV problem in this game.

But, as you're discovering, every gaming/benching scenario is going to be different in regards to the level of CPU BN you experience. It's not like you 'have' or 'don't have' a CPU bottleneck just based on your hardware alone. They vary in frequency and severity depending on the testing scenario you use.

Key factors are how cpu-dependent the app is (i.e. how much work does the game/bench required of the CPU per frame rendered), and the settings you use ... generally speaking, the lower the settings (i.e. lower AA/resolution, etc), the more likely it becomes that, on any given frame, the CPU will be the limiting factor to your performance.

This is because the lower the settings, the faster the GPU can run the app. The higher the FPS, the more work the CPU is being asked to do per unit of time. Ergo, the more likely it becomes that the CPU will be the limiting factor.
Edited by brettjv - 5/7/11 at 12:32pm
    
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post #10 of 11
If you don't want to go with a new mobo, the for sale section has a few strong Core2Quads you can go with.
 
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