I have an amd athlon ii x2 250 3.0ghz processor and a 1gb radeon 5670. 3gb ddr3 ram. Am I bottlenecking? Also, I record games with fraps, and it seems quite intense on my cpu, I'm thinking an upgrade to a phenom 9850 quad core 2.5 ghz with a radeon 5770. Is it worth it?
If you're low on money, a Phenom IIx2 or an Athlon IIx4 will be more than enough with a 5770. But you may want to save up for a Phenom IIx4 955 or better (although newer model Phenom II's are priced higher for what you can overclock to and beyond to stock.)