Second GTX 670 Making no Difference?

[forerunner]

I recently picked up a second 670 for SLI, and im not seeing any real difference in performance in games like arma ( i know ) , BF3, COD BO II, Crysis 2, planetside 2, diablo 3, and a whole slew of other games that probably dont support SLI. Also, im gaming at 1080p, is that why?

im thinking about selling the second GPU to invest in a second PC to be my encoding workhorse for Streaming, which i already have a Avermedia live gamer HD card for, which made a big difference on performance while playing/streaming, but i dont think its quite there... idk, any guidance ? lol

 

[quark004]

i have the same problem. the gpu usage in games seems low, only benchmarks push the gpus to their max potentail. i game at 1080p 120 hz

 

[forerunner]

Same same... Benchmarks are the only place where i was like... damn. definitely scaled 1:1 in unigine.

 

[JJ1217]

CPU/PSU?

 

[forerunner]

i7 3770k @ 4.4, Corsair TX750