A 750 is still a darn decent CPU, 2600k doesn't really offer *that* huge an increase. No offense, but from what you've said on the forums it doesn't sound like you're in a position much to be worrying whether your gf can play Supreme Commander lol. Stick with one rig, keep the 750, buy moar ram if you have to, but wait.
The increase is in raw speed. I'm going multi-GPU again and that is why I'm considering the RAM to clock my current 750 faster, or get a chip I know can do 5ghz while offering HT and a better architecture. There is a 90% chance of me getting my old job back so this is why I'm looking at upgrading. Plus, if I upgrade and give my 750 to the gf my friend will realize finally he wont be getting my hand me downs anymore. He is running on my old 940 stuck at 3.5ghz and this causes us to deal with only 2 Sorian AI with 500 cap limit. I know for sure if he gets it in his head he can't depend on me for PC parts anymore he will upgrade to a 2500k. (Grand scheme, I know, but worth it to a point) To not make it sound so bad, I also don't wanna hear him complain that he can't max Skyrim.
Buy "faster" ram, you mean. I want some 2200 or 2133 for more headroom. I know this chip is capable of 4.4+ so just wondering if I wanna squeeze it out, upgrade, or say F it.
if money is an issue you can always get a 2500K and save 100$
If I had the money to buy a whole new mobo and CPU then I can probably afford the extra 100
Bottom line was, is it worth it to drop 500 on a new setup or try to extend my current rigs life span while getting a cheap upgrade for the lady. Seriously though, I want HT for other reasons. My server is completely taken apart and my drives in my main rig meaning all encoding gets done on my PC, all audio programs are ran on my PC, all streaming is done on my PC, all background tasks done on my PC, plus I'll be able to fold again since I will have a jerb. Only for TF of course.
It's down to you Slay. IIRC you had a 760 with a SLI setup, right? How much gain in the multi-gpu department did you get from going to the 2600k? (From the 920 or 760)