Is my PC any good for gaming?

[Smooth1221]

Also, If I upgrade my GPU to Geforce 750 will my processor be able to handle it?

NVIDIA GeForce GTS 250
Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (4 CPUs), ~2.7GHz

 

[Mars72]

That's a pretty old computer. I was able to play New Vegas on Medium settings with an Intel Core 2 Duo and a GTX 220. I'm sure you might be able to handle a game as intensive as New Vegas a bit better than I have. Is it good for gaming AAA titles in 2015? Most likely not.

 

[Tradesman1]

Yes, the 920 isn't going to bottleneck a 750, you'll be fine 😉

 

[Mars72]

I think this cpu is a little beyond a C2D,probably in the realms of double plus power. It would widdle all over vegas.
FO 3 and vegas would crash every couple of hours with a 6XXX,7XXX OR 8XXX c2d, as they did on a ps3.

It was stable for me for a few months before a system upgrade but then again, I didn't play for hours on end. Maybe a failing PSU when i look back on it.