Does Black Ops 2 Really Support SLI?

Hi, I'm a brand new member and had a quicl question since I'm not getting a responce fro Overclock.net about this.

And now on with my question,

 

I was just wondering if anyone knew if Black Ops 2 really does support SLI? I am getting better FPS with a single 670 vs my SLI 670's. During Normal gaming, I get near or hit the FPS cap of 200 without SLIand with SLI I get upwards of 150 or so. But the main issue is streaming, When Streaming I get around 80-90 without SLI and with SLI enabled I get between 30-40, is it a driver issue? I have tried 2 streaming programs, Xsplit and OBS (Open Broadcaster Software) and I get the same FPS with both. If it is SLI, does anyone have a fix that I can have SLI enabled of certain programs (BF3 and most others) and then it auto disables when in another (Black Ops 2)

 

I don't think it does for the 670. I would look into it more

That doesnt make any sense that only the 670 it doesnt support SLI.

Well it got an increase in preformance from the 310? driver for SLI on the 680 i think. From what I notice, if your GPU is not in a even numbered card, like the 660, 680, etc., they don't worry about them too much. The expection of course is the 590 and 690, which are just dual 580s and 680s. 

sli doesnt work at a game level, it works at the hardware / driver level.... so yeah, update those drivers man!!!

I have the 310.90 WQHL Drivers -_-