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To do or Not to do CF - Page 3

post #21 of 43
Quote:
Originally Posted by Hicuty12 View Post

k guys i bought second 7870 and installed. Everything seems fine fps skyrocketed at benchmarks. No microstutter either. I want to oc them a little without playing with voltage cause of power consumption.

How does oc work with cf? They are currently working on 1050 ghz shall i put them just 1100 and use like that? How much shall i increase the clock to see a difference in fps?

thks

Glad it works good for you, I love my 7950's.

What res are you playing at?

I use msi afterburner to oc, In settings you can synch the cards and then just move the sliders. Also sapphire trixx is popular and also has a synch card setting.
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post #22 of 43
Thread Starter 
im playing at 1080p. I have an issue with crysis though. Fps drops down to 30 depending on environment at full settings with 2x smaa. Is that normal?

ill try 1100 mhz to see if there will be a difference.
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post #23 of 43
Not to do with the current state of the frame rating issue. Crossfire is a terrible blunder and should not even be considered unless you can guarantee that you will not dip below the vsync limit.
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post #24 of 43
Quote:
Originally Posted by Hicuty12 View Post

im playing at 1080p. I have an issue with crysis though. Fps drops down to 30 depending on environment at full settings with 2x smaa. Is that normal?

ill try 1100 mhz to see if there will be a difference.

Also while testing monitor your cpu usage, I get dips in bf3 when my cpu is maxed out. Your cpu may be bottlenecking the cards a bit.
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post #25 of 43
Thread Starter 
Quote:
Originally Posted by john1016 View Post

Also while testing monitor your cpu usage, I get dips in bf3 when my cpu is maxed out. Your cpu may be bottlenecking the cards a bit.

cpu usage rise up to 85% in one core. Anyone having fps issue in Crysis 3?
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post #26 of 43
Ive had SLI or CF for the past 4 years and i love it .I have yet to notice any micro stuttering.But then again im running SLI so that really doesnt answer your questoin..I have used CF two time's in the past and both times i had no problems.That was back when it was still ATI.
    
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post #27 of 43
Thread Starter 
guys increasing power limit to 20% from ccc helps gpus? I mean will there be any performance increase although not overclocking them? Cause some guys said so especially when using cards in cf mode.
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post #28 of 43
I use 7970 CrossFire.
it performs very well in most games thumb.gif!
post #29 of 43
Quote:
Originally Posted by Hicuty12 View Post

guys increasing power limit to 20% from ccc helps gpus? I mean will there be any performance increase although not overclocking them? Cause some guys said so especially when using cards in cf mode.

you can try, it won't harm any. C3 is really a very demanding game like metro. dips in the 30s even in dual gpus is not unusual. i never monitor my usage, so long as the game is smooth. here is what i get when i hybrid my 7900s in C3 . . .



gpus stock my i7 oc'ed to 4.5GHz. that was VERY HIGH (all) with 4MSAA at 1080.
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post #30 of 43
Thread Starter 
Mine goes 60 fps average but with fxaa. It would crash my frame rates if i go 4msaa. Cpu is working at 4.4 ghz.(Amd fx 6300)
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