my 2310 is running at 3.5, so I get benchmarks like a stock i5-2500, but yes, I do get occasional spikes approaching 100% on a couple cores at times.
Looks like I can run all Ultra with no MSAA or High with 4x MSAA. Which would you think would look better? Ultra with 2x is acceptable, but I get occasional drops in the high 30s when there is lots of certain kinds of effects.
That said, I don't regret saving $50 to lose a few fps. I just played a few matches at 1680x1050 with everything on the highest setting except MSAA at 2x and it played perfectly. So this thing is a beast for $140.
Also, the one site that benchmarked this exact card was getting better results than me, but I just looked closer and they had used a i7-3960X, so that's just a tiny bit different....
I'm at least getting their stock results by overclocking my card, so it's not all bad.