I understand what you are saying, but how high do you have to go until you are reaching equivilant speeds? Don't quote me, but I think I remember seeing a review in which the PII 980 was moderately overclocked (I wanna say 4.5ghz) and it wasn't near meeting the stock 2400 in gaming performance. I couldn't find the article so I may be imagining it, but just looking at stock 3.8ghz (980) vs. stock 2400 @ 3.1ghz, the 2400 is nearly double performance in a number of benchmarks.
At it's current price I am extremely tempted to grab the 8120 just to run it through the ropes. I'm curious to see what it can do, I'll try what you are recommending. I'll even throw my Cooler Master Hyper 212 on which would bring it right to the cost of a 2400. The only FX processor I have toyed with was the 4100, which I wasn't extremely impressed with.
I reread my original post and feel I came off a bit as an ass. I just noticed what I thought were a few contradictions and a bit of bias towards AMD 😉.