I currently own an i7 3930k and an Asus P9X79 Pro motherboard. I've been considering selling my i7 3930k and motherboard and buying an i7 3770k. I still have my Intel DP67BG motherboard on the shelf and it will support this CPU with the BIOS version that's installed on it. Only 1 game I have does take advantage of more than 4 cores, frame rates are not higher though, but it gets about 25% faster load times and a little faster at texture rendering with 6 cores vs 4 cores (number of cores active set in BIOS). If I downgraded to an i7 3770k, I would expect that texture rendering speeds and load times in this game I'm mentioning here would slow down a bit but I would probably get a little higher frame rate and the increased IPC of the Ivy Bridge would make load times and texture rendering speeds close to my i7 3930k in this game? Also what are the chances that an i7 3930k will start to get more fully utilized by upcoming games? I understand that if 6-cores are well utilized in a program then the i7 3930k is far ahead of the i7 3770k based on the benchmarks I saw.
im still using a c2d e6300, pretty much says it all. havent found any reason to upgrade it.
C2d is way too slow for me... I had to upgrade because nothing i played would run smooth anymore.
as for the OP, you have made the investment so just stick with it. PErsonally I wouldn't have bought that CPU, I would have bought 2600k with a good mobo. Microcenter sold the 2600k for $190 2 weeks ago, what a steal. I think the money saved with a 2600k would have been better spent on a second card or extra ram or one really good card.