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BFBC2 470GTX in SLi bad scaling? - Page 2

post #11 of 26
cpu bottleneck for sure. I had this problem in the past with BFBC2. I was using a e8500 (pulled from my htpc) while my evga x58 micro go rma'd and my gtx 480 barley saw 30% usage. As I overclocked the e8500 the gpu usage started to go up. Anyhow once I got my mobo back slapped it and overclocked my i7-920 to 3.6 ghz and the gpu usage is not 99% at all times. BFBC2 loves the cpu!
post #12 of 26
Quote:
Originally Posted by pn0yb0i View Post
Its quite baffling, upon further research, its the frostbite engine at fault. I can run Crysis 2 @ 1080p maxed out with DX11 enabled quite fluidly (vsync ON to avoid tears, its highly playable, RARELY dips to 40's in some areas, but very very playable - Probably the best PC gaming experience I've had since... ever!). The game utilizes 99% of both cards.

Now whereas in BFBC2 Multiplayer, the cards barely peak 55% and average playable 60~ average however dipping 30~40 constantly.
With a quickgoogle search, I'm not the only one with this problem. As for a CPU bottleneck? Not likely. even at lower resolutions, FPS in multiplayer is relatively unchanged. Ive tried SFR AFR2 AFR modes, and as well as Nvdia "custom" defaults to no avail. For now, Ive disabled SLi for BFBC2 exclusively. My Futuremark Vantage GPU scores are on par with several online reviews.

Meh, Frostbite its a kick in the butt~
Low GPU usage, and unchanging framerates from low to high resolution.....dude you're CPU bottlenecked plain and simple. A Q6600 isn't anywhere NEAR strong enough to fully utilize 2 Fermi cards properly.
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post #13 of 26
I believe the Q6600 is just 2 E6250's...which are bad.
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post #14 of 26
Quote:
Originally Posted by ZainyAntics View Post
I believe the Q6600 is just 2 E6250's...which are bad.
A Q6600 is 2x E6600 (2.4GHz, 1066 FSB, original Conroe) glued together onto the same die essentially. So you were close.

EDIT:
By the way, your CPU was released in November of 2006 (proof). That's coming up on FIVE YEARS old. It's time to upgrade that dinosaur if you plan to keep higher end GPU's from 2010 (4 years after release of your CPU).
Edited by pioneerisloud - 7/31/11 at 1:48am
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post #15 of 26
Quote:
Originally Posted by pioneerisloud View Post
Low GPU usage, and unchanging framerates from low to high resolution.....dude you're CPU bottlenecked plain and simple. A Q6600 isn't anywhere NEAR strong enough to fully utilize 2 Fermi cards properly.
In a lot of situations, sure. Not every situation will be nearly as bad as BFBC2 though, as it is a pretty cpu-intensive game. Fire up Metro at VH settings, for example, a q6600 will do just as well as an i7. But overall, I agree. The possibility of frequent CPU BN is definitely there.

One thing that complicates the diagnosis somewhat though is how sketchy GPU usage has always been with Fermi cards in multi-player of BFBC2 ... it's a lot better nowadays, but it's a long-standing issue.

I will also add that if you see better FPS w/a single card than with two, yet you know SLI is supported (i.e. you get equal usage on both cards), that too is an indication of a bad CPU BN in the scenario you're seeing it under. This can happen because SLI adds a pretty significant CPU load, managing two cards is a lot of work. If you have a bad-enough CPU BN, one card will often be faster than two for this reason.
    
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post #16 of 26
A Q6600 is being the bottleneck here, it would be even for a single GTX470.

You really need to upgrade your platform here.
    
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post #17 of 26
When I has two 480's with an i7 950 @ 4Ghz I was pulling over 140FPS maxxed out @ 1080p.

Single card about 80-90FPS.

You must be seeing a CPU bottleneck. Your GPU's need feeding textures and your poor old Q6600 can't feed them fast enough.
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post #18 of 26
I can play Crysis 2 on a phenom x4 840 at 1360x768 and guess what, I can get 99% gpu usage on one gtx470. Blame the game and the coding, don't blame the Q6600. BC2 doesn't look good enough to warrant such a high cpu requirement. Don't go on an upgrading frenzy over one outdated game.
    
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post #19 of 26
Quote:
Originally Posted by BigCactus View Post
I can play Crysis 2 on a phenom x4 840 at 1360x768 and guess what, I can get 99% gpu usage on one gtx470. Blame the game and the coding, don't blame the Q6600. BC2 doesn't look good enough to warrant such a high cpu requirement. Don't go on an upgrading frenzy over one outdated game.
You do realize that your Phenom II isn't any faster than his Q6600, right? You are also CPU bottlenecked at that point.
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post #20 of 26
Quote:
Originally Posted by BigCactus View Post
I can play Crysis 2 on a phenom x4 840 at 1360x768 and guess what, I can get 99% gpu usage on one gtx470. Blame the game and the coding, don't blame the Q6600. BC2 doesn't look good enough to warrant such a high cpu requirement. Don't go on an upgrading frenzy over one outdated game.
Funny you call BFBC2 an outdated game.

The CPU is outdated already, a Q6600 can't even keep up with the latest high-end GPU's, wether or not you want to admit it.
    
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