7870 running games at low FPS

I have a sapphire 7870 in my build (The list is on my profile), and it's running games at low framerates in everygames. MW3 is about 30ish, Flight Simulator X is at 35-ish, Tomb Raider is a bit more forgiving, 42 ish. I have the latest beta driver (13.3). Other games have similar framerates. I wouldn't mind if this is in 1080p, but since it's running on 1024p, I'm becoming concerened. I run the games at max with RadeonPro (SMAA Ultra, etc). Does anyone have any solution to this? I know this card has more up it's sleves.

did you try using the non beta drivers?

yes, still running low. In fact, the low FPS is not the only problem. My whole system refuses to start up

Maybe it is your psu thats faulty. Try running the system on a different psu or on a different graphic card and see if the system starts up normally