Simulation Gaming, i5-3570K good enough?

Hi

I am building a computer for gaming purposes and am looking at getting an i5-3570K. Most of my games are simulation games such as flight simulator and truck simulator, I would like to run them on high or ultra. I was going to get an i7-3770K but due to finances I can no longer afford it. I may do some video editing and creating and may overclock depending on the performance I get out of it. I was wondering if the 3750K would still provide a good amount of performance for games and would not be too much worse than the 3770K.

I plan to have a Sapphire HD 7770 video card.

Thanks for the help

Isaac