Phenom II x4 920 bottleneck?

I now have my sapphire ati 5870, and have been running it on many games for about a month. I have a Phenom II x4 920 (stock 2.8ghz) overclocked to 3.33ghz. I was wondering if this woud bottleneck my 5870? And can someone explain how to tell if my CPU is bottlenecking? I never knew what to look for, like as in signs of bottlenecking.

Thanks,
Xion

You could run a crysis benchmark and compare it to Tom's and see how much further your GPU can go.

http://www.tomshardware.com/review [...] 22-13.html

Although I'd look at a few different benchmarks (and games) before deciding.

I'd say a Phenom II @ 3.33 shouldn't bottleneck a 5870, and if it does, it shouldn't by much at all. That's a pretty solid CPU for gaming.