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Poor BF3 performance with GTX670 SLI 5760x1080 - Page 3

post #21 of 25
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Quote:
Originally Posted by Stay Puft View Post

That 950 needs to be at 4.2ghz atleast or he's bottlenecking

Lol so ur telling me another 0.05 GHz is gonna make all the difference? Ur funny dude.
 
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post #22 of 25
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Another upgrade is definitely in the works as i said earlier, but i think for now it'll suffice. The cards are heating up a bit, but it's about 35-40 degree's ambient atm. ME and my mate are gonna make some water blocks for these bad boys so that they arent cooking each other in SLI.
 
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post #23 of 25
How hot are the cards getting? Also did you try the new 310.76 drivers nvidia released yet?
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post #24 of 25
I just got my single 670 4gb today and did some Vram testing to compare how one 670 would compare with my 2 570 1.2gb cards with triple screens. My single 670 runs much smoother than the 2 570s in BF3. I was maxing out the Vram in the 570s with no AA at all. With my 670 I can run 4xaa and the same graphics settings as my 2 570s with no AA. Any AA at all would make my PC crash before because of the Vram increase. With no AA and I think mostly medium settings BF3 is running about 1800Vram with 2xAA about 2100 4xAA 2800 and 8xAA 3700.

The lack of raw power that the 670 gave up to the 570s wasn't as big of a factor as the addition of 3gb of Vram. I'm going to post a more in depth comparison later on when i get time. I did some tests with BF3, far cry3 and iracing with triple screens and compared the performance between sli 1.2gb 570s and a single 4gb 670. I think in the end the 670 was arounf 5-10 FPS slower on most of them at the same settings, but you could bump up the settings farther for the 670 and it still be playable. Vram turned out to be much more important than I thought it would be.

i'm not saying that's your problem or anything jsut thought I would share the info. Keep in mind that this was paried with an i7-950. I can't imagine that CPU is slowing you down. I run mine at stock clocks and my 570s would both run at 99% all day if the game was codied right. I'm guessing it will do the same with the 670s.
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post #25 of 25
Thread Starter 
Quote:
Originally Posted by Hatfieco View Post

How hot are the cards getting? Also did you try the new 310.76 drivers nvidia released yet?

Well it does vary between 60-75 degrees on the top card on a hot afternoon. The bottom card ishe new driver on average 10 degrees cooler. I havent tried the new drivers as yet but might do that today.
 
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