I'm not in a position to say anything about AMD FX8150 or FX8120 performance which might make my comment null and most likely void. About three months ago I decided to go the Intel route again, after a couple of years of using AMD.

I do not use my computer for video encoding or decoding or any other productive tasks except maybe assignments or reports for my studies. What my computer is mostly used for is gaming and overclocking. Going from an Phenom II 940 to 955 to 965 to 1090T to 1100T I've noticed very little difference when playing games. All these processors, except for the 940, were running at 4Ghz for everyday gaming. Jumping over to Intel, I got the 2600K and I really enjoy this processors, maybe more so becuase it is running 4.9Ghz for everyday use under custom air cooling.

However, it is really difficult to find the difference between the AMD processors and the 2600K. The only notable difference I found was that after a couple hours of gaming on the 2600K I get stutters and teh only solution seems to be exiting the game and restarting the computer. Now I went from 4GB ram to 8GB ram and now I'm using 16GB ram. I have not gamed for many hours yet to see if the same thing happens with 16GB ram, but this never happened while I was gaming with my AMD setup. Now I might be doing somethig stupid in the setup which causes this, so I won't blame this solely on the 2600K processor. Like I said, I really enjoy the processor, except that I'm struggling to get it over 5.2Ghz, even under DICE. Performance is great when benching, but for everyday use and gaming I won't call this a win for the 2600K.