low heaven FPS compared with other people

CrazymanWO

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May 21, 2013
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So i have SLI'ed 2 evga gtx 670 FTW's. My heaven fps, everything on extream with 4x AA is about 69 fps. Comapred with other people this is really low. Most of the time people average in the 90s or 100s with these cards in SLI. I did a 3D mark benchmark and the sli is working correctly. I have 3 games which i have tried to test my sli set up, BF3, farcry 3. I dont see any increase in FPS and i have tried everything including clean install of both windows and the nvidia drivers. SLI is enabled also and everything is optimized. In single player on BF3 i do see a diffrence i get a consistant 170 to 200 FPS. But in multiplayer the FPS goes from 55 to 85 which is actually worse then when i had a signle gtx 670 ftw.

Here is a link to my 3d mark score which says that i got a better score then 95 percent of all the people.
http://www.3dmark.com/results

This is my rig:
AMD fx 8350 OC'ed to 4.5 ghz (cooled by an h80 water cooler)
8 gb of ram
750 watt PSU bronze
120 gb SSD
1 tb HDD
2x EVGA gtx 670 FTW
8 case fans
Windows 7 64 bit
Gigabyte 990 fx-ud3 motherboard



ANY suggestions............... THE SLI is deffintly working cause my original 3d mark score was 8500 and now its 13095, but i dont see any difference in anything else such as FC3 and many other games that have an SLI profile. And I am 100 percent sure its not a CPU bottleneck.
 
Solution
Look at this article. http://www.tomshardware.com/reviews/crossfire-sli-scaling-bottleneck,3471-5.html You will see that you are held back a little by an AMD CPU versus an Intel chip when running SLI. Now of course that is only in more CPU bound games/benchmarks(see F1 2012, and Elder Scrolls.) Some are right on par, but some are not. Maybe the Heaven benchmark is one of the situations being CPU bottlenecked. BF3 multiplayer is heavily CPU dependant with everything that is going on at the same time. WAY different than the single player.

At least SLI scales a little better with an AMD CPU though, so it makes up for the deficiency a little bit in CPU bound situations. Either way an Intel i5/i7 would still give better results overall...

CrazymanWO

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May 21, 2013
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I have Oced the card with precision X. One thing i have noticed though is that for some reason the cards dont go over the core clock. WHen i had my sigle gtx 670 the boost clock would go all the way to 1200. I tested out the second GPU i got and it also clocks to 1200 when i use it as a single card, but when both cards are being userd in SLI they dont clock past the core clock. Is this the issue?
 
Look at this article. http://www.tomshardware.com/reviews/crossfire-sli-scaling-bottleneck,3471-5.html You will see that you are held back a little by an AMD CPU versus an Intel chip when running SLI. Now of course that is only in more CPU bound games/benchmarks(see F1 2012, and Elder Scrolls.) Some are right on par, but some are not. Maybe the Heaven benchmark is one of the situations being CPU bottlenecked. BF3 multiplayer is heavily CPU dependant with everything that is going on at the same time. WAY different than the single player.

At least SLI scales a little better with an AMD CPU though, so it makes up for the deficiency a little bit in CPU bound situations. Either way an Intel i5/i7 would still give better results overall, but at a little higher price.

EDIT: Maybe try a different overclocking tool like MSI afterburner to overclock your video cards in SLI. It might just be an issue with the program itself.(precision)
 
Solution

DragonChase

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May 22, 2013
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Wow i never bothered to look at how the processor performs under these circumstances! tnx for the link, happy i have a 4770K!, almost regreted because well yea...320 euros vs 150...

Picked as the solution! 40 fps is major diffrence.
 


I just finished editing an adding info to my original post as well. :)

 

DragonChase

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May 22, 2013
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Then again, was a nice reply, i am also aware software issues might be a culprit here but its just not as important as the CPU problem.

OMF* 70 more fps on skyrim XD im still stunned mate!
 

CrazymanWO

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May 21, 2013
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Thanks. OK so my second question is, I just bought the processor and 990fx mobo 3 months ago. Is it worth getting the i5 for me. I don't know how much I will be bale to sell the mobo and CPU for.
 


If you have money to burn it may be worth it, but as long as your gameplay experiance is smooth, I would just wait till it isn't anymore and then make the switch. That's what I'm doing. lol.