Will this processor upgrade gain me enough to be worth the $100?

[bfollowell]

I'm still fairly satisfied with my current system. It does what I need it to and runs all the games that I want to run at 1080p and at relatively high quality levels and a pretty decent frame rate. However, I'm considering replacing my GTX260 SLI setup with a newer, single graphics card, more than likely a GTX760 or GTX960 and replacing the processor. I just purchased but haven't installed another 4GB of RAM, taking me up to 8GB. I currently have a Core i5-750 processor and am considering replacing it with a Core I7-870. I'm curious if anyone could give me an idea what sort of boost/increase I may see. I guess I'm referring to mostly gaming as I doubt I'll see much speed increase when entering data or running reports in Family Tree Maker or surfing CNN or any other general tasks. I do a little CD ripping for my ipod and some ripping of my DVDs and Blu-Rays for use on my tablet and I know those can be fairly CPU intensive.

So, does anyone have any idea how the Core i5-750 Lynnfield and the I7-870 Lynnfield compare to each other?

Thanks.

http://speccy.piriform.com/results/dTDD5U1annxOCfClZBi228F

 

[cluberti]

Intel Core i7 870 vs i5 750

Scroll down to see how they compare to each other, and click to see how they each compare to newer parts.

 

[TVeblen]

You won't see any measurable increase in the performance of games IMHO. Games are really GPU intensive and rely very little on pure processing power of the CPU.

When I have a game running I will sometimes run HWMonitor in the background and when I am done I can see that the utilization and temps on the CPU have barely budged, while the GPU has very significant increases in both.