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GPU usage variation with 670 SLI - Page 4

post #31 of 44
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Quote:
Originally Posted by General123 View Post

Give it time, we have had 1 WHQL. With only the second beta driver we saw big improvements in performance and stability. Just wait for the next WHQL, going to be great.! smile.gif

Yeah I hope so, almost 4 months passed without a new WHQL, hope it coming soon thumb.gif
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post #32 of 44
Quote:
Originally Posted by ViTosS View Post

Yeah I hope so, almost 4 months passed without a new WHQL, hope it coming soon thumb.gif
Me too its killing me.
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post #33 of 44
Thread Starter 
Quote:
Originally Posted by PontiacGTX View Post

some games which are new use more gpu than other for example FPS games will use more gpu than game in 3rd person view, this is normal 1080p isnt enough for 670 GTX, in the future when games become more gpu dependent than today`s game in 1080p

I know but it's kinda sad for me because I bought 120Hz monitor only to reach at least 100fps in all games and when I go play I stay between 60~90fps and with a lot of GPU usage % lefting to be used mad.gif
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post #34 of 44
Quote:
Originally Posted by ViTosS View Post

I know but it's kinda sad for me because I bought 120Hz monitor only to reach at least 100fps in all games and when I go play I stay between 60~90fps and with a lot of GPU usage % lefting to be used mad.gif
A quad-core Sandy Bridge @ 4.5GHz is not enough for running every game at 120 fps.
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post #35 of 44
Quote:
Originally Posted by Arni90 View Post

A quad-core Sandy Bridge @ 4.5GHz is not enough for running every game at 120 fps.
Yeah it takes a 5ghz quad core sandy tongue.gif
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post #36 of 44
Agreed, not all of those cores are utilized, so you need to overclock more to compensate. As a rought guide, try 4.8ghz@1.42-1.45v, and post back with results thumb.gif
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post #37 of 44
Thread Starter 
Quote:
Originally Posted by jdc122 View Post

Agreed, not all of those cores are utilized, so you need to overclock more to compensate. As a rought guide, try 4.8ghz@1.42-1.45v, and post back with results thumb.gif

Are you guys serious telling me a 4.5Ghz 2600k is bottlenecking two 670? I would OC if my Thermaltake Frio wasn't so bad, actually at 4.5Ghz I got 62~63ºC full load via Prime 95
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post #38 of 44
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I'm gonna wait new drivers, since I got a friend with two 7970 and same proc as me and he tested for me that both of their GPUs keep at 99% use. Maybe it's the AMD better to scalability, but if it was bottleneck, their 7970 wouldn't have reach 99% use all the time with vsync off....
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post #39 of 44
There is a problem with SLI atm from what i can see, GPU usage and FPS is poor given the hardware in place. A CPU bottleneck exists sure, but i wish peple wouldn't throw this out there so quickly. Truth is a 4.5Ghz - 5Ghz clockspeed is about as far as most CPU's can feasibly be taken on most realistic cooling methods (barring LN2 and Phase of course). This is something that cannot be overcome...

From my experience there is something not working right with current drivers and/or game patches with SLI. Take BF3 MP for example, the GPU usage and FPS is all over the place and isn't what it should be. It's understandable that GPU usage will be lower in resolution limited setups but FPS shouldn't.

For 1 or 2 GPU's CPU bottlenecks aren't as apparent as TRI SLI/4-Way SLI. In my case i'm using just a single 1920x1200 screen until i get my triple screens, and for me BF3 MP 64Player Caspian for example gets mid 40% to mid 50% usage per card as you'd expect being so CPU Clockspeed and resolution limited. But at the same time my FPS can get as low as 75FPS - 90FPS on average. That's just plain not right....
Edited by Mhill2029 - 8/15/12 at 5:49pm
 
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post #40 of 44
Quote:
Originally Posted by Arni90 View Post

There is no law in computing that states more cores = more performance, you should read up on Amdahl's Law thumb.gif
IIRC Crysis 2 will cap out at four cores, you can't substitute Instructions per core per second with more cores if the software you're running is incapable of a speedup greater than 4x, I have no problem believing an overclocked Sandy Bridge will bottleneck 2x 670/680 SLI or a 690 at 1920x1080 in Crysis 2.

I've read about Amdahl's Law. None of my cores ever max out. I'm not basing the "no bottlenecking" statement on the fact that I have 6 cores. I'm saying it because I never have a core with a full load on it.

Even when I had my 2500k, I would run it at 4.5Ghz and not max out a core. Still got lower than full usage in SLI, so, maybe it is SLI like the one couple posts said.
Edited by dph314 - 8/15/12 at 8:35pm
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