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BFBC2 470GTX in SLi bad scaling?

post #1 of 26
Thread Starter 
I feel the frame rates are no different from single card.

Is there some hot-fix I don't know about?
    
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post #2 of 26
I suppose you can overclock you CPU higher.. might be feeling the "bottle neck" affect?
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post #3 of 26
You are CPU limited, plain and simple. Your gpus are pumping out the frames but your cpu can't keep up and is completely taxed so what you get is your max. It's why I upgraded from my q6600 to SB.
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post #4 of 26
in bad company i get about 130fps average at 1080p (HIGH GRAPHICS PRESET) in SLI and with one card with the same settings but one card i get about 70-80.
post #5 of 26
You feel the frame rates are no different? Does that mean you don't actually know if they are or not? Load up fraps and test it.
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post #6 of 26
Thread Starter 
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~
    
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post #7 of 26
BC2 is very CPU demanding so yes you are running into a CPU bottleneck with that game. It is notorious for taxing C2Qs with new cards especially in SLI
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post #8 of 26
Fermi cards require more CPU to get the most out of them. It might be a driver bottleneck in CPU limited situations. Like 480 SLI will beat 5870 CF almost all the time. But use a slightly weaker CPU like a Core 2 Quad, and the 5870 CF will beat or tie 480 SLI some times.

Fermi needs more CPU to perform optimally.
post #9 of 26
Q6600.

/thread
post #10 of 26
common issue that fermi cards don't get loaded that much in BFBC2, but 1 card should easily max the game out with 60+ fps.. i used to do it with a GTX260 core 216 lol
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