Upgrade PC

Hello everyone, I have a PC that I built a while back and I've been wanting to upgrade. I wanted some direction since im all over the place and don't really know what to upgrade first. I have a Z71 mobo (1150), i3 2120, radeon 7850 2gb, 8gb ddr3 1600, a 500 gb hard drive. I want to get better FPS but I don't want to break the bank too much. What would be a significant upgrade without spending too much. Thanks in advance. 

hmm. I could say a better cpu. What's your budget?

Well overall the system's relatively balanced.

see what's being bottlenecked first, then decide.

consider updating your UEFI, then popping in an ivy bridge i5 if it's cpu bottlenecking.


I don't want to be a bummer  ... but my money is on the CPU

Around $200, Sorry I forgot I had posted this when I fell asleep. 

I was thinking going with an i5