Question about SLI 780 BF4 Benchmarks

[98Redbird]

I finished up my 4770k SLI 780 watercooled build a few months ago and have been trying to overclock the 780's. I've got the 4770k running at 4.7 ghz and the graphics cards overclocked a little, but not much.

 

I watched linus' (well slick's) BF4 bench and they were getting 78.0 FPS on Ultra, so I ran one card on Ultra and got 80.639 FPS running thru FRAPS. When I enabled SLI I ran at 126.6 FPS which was only a 57% gain... I don't understand that. I know it's not equal to twice the frames, but only a 57% increase??

 

Then I upped the resolution. My monitor only does 2560x1440 whereas Slicks did 2560x1660.

 

So his results (all on Ultra) was 48.8. I ran SLI on Ultra at 2560x1440 and only got 71.1 FPS thru FRAPS...

 

That was alarming to me. I feel like this system is really underperforming, but I am really new to all of this and am still learning. I hope to find what I'm doing wrong, or what's holding me back. Expensive rig and I want to get it running best I can. I am kind of learning as I go

 

Any help is greatly appreciated!!

[miyabwah]

SLI does not scale perfectly. 2 GTX 780s does not double your performance. But there is an increase.

[das affe]

whats your ram-speed?

[98Redbird]

Ram was set to Auto, but it's 1600