Upgrading from Core i5 750 -- is it worth it?

[StarSolitude]

I have a Core i5 750 @ 3.8GHz being cooled by a Corsair Hydro H50. The motherboard is an MSI P55 GD-65 socket 1156.

I need to upgrade my PC for better gaming performance.

My current graphics card is an ATI HD 5850. If I went and bought, say, an nvidia GTX 670, and used it with my current CPU (i5 750), would I still be able to play current and next-gen games at high/max framerates?

I'd rather not have to upgrade my motherboard, CPU, CPU cooler and RAM if I could just get away with upgrading my graphics card. I'd have to, however, if my old(ish) CPU would act as too harsh a bottleneck on a modern graphics card.

 

[StarSolitude]

I'm on a i5 750 too, though I normally run at just 3.2GHz (can get 4.1GHz stable but I don't need it and its a bit hot on my arctic freezer 7). Its fine for my 7850. Were I you I'd not upgrade at the moment, I'm thinking probably upgrade next generation. I want to upgrade.... but just can't justify it as the 750 handles everything fine. (I don't play MMOs so perhaps you'll find they give you trouble? Strategy games have been fine)

Kinda wish I was on a 2500k though just for higher clocks!

Edit: Were I to find mine struggling a bit I'd probably just get a better cooler & push it to 4.1 24/7. Maybe up the volts a bit and try for higher, I hit 4.3 and booted fine but I was too nervous to keep it there and was too hot so not sure if it was stable.... but if its going to get replaced if it doesn't handle it there is basically no downside!

Edit2: Also get yourself a 7950, I wish I had! Overclock it and it'll be sweet.... A bit cheaper and a bit more powerful than a 670. Unless of course you get a cracking offer from a mate second hand or something, in which case the 670 is great too.

Thanks for the info. I plan on playing games like Rome 2 Total War and Final Fantasy XIV: A Realm Reborn (MMO). I'll look into getting a 7950. But... last itme I checked (a few years ago) Nvidia cards had a slight edge over ATIs? Wouldn't an Nvidia equivalent be better than the 7950?