That's good, and you're all stable in desktop too?
Yeah, haven't crashed once since the format.

I wouldn't be concerned about BF4 performance just yet - BETA Game and Drivers and you have SLI, triple threat lol.
I keep telling myself the same thing but when you're in TS with other guys who have SLI configuration (not titan) and they are getting 120+ FPS it makes me wonder why mine doesn't.

I have now run FurMark 1.11.0 for just under 3 hours. Therefore I am pretty sure that the chip, ram and GPU are fine.