Is my computer pci-e x16 2.0 or non 2.0?

[SuzukiGS750EZ]

Hey guys. I'm in the market for a new graphics card and had one suggested to me. I have a stock Dell dimension e520 I believe from 2007. It has 2 pci slots and a odor x16, but I don't know if it's 2.0 or not. The are suggested to me was for 2.0. What's the difference? Anyone who knows anything about graphics cards please also see my other thread! Not doubting anyone, just confirming before I purchase.

 

[BikerEcho]

a pci-e 2.0 card is backward compatible with non 2.0 slots. so dont worry about that.
the thing is that 2.0 can delever memory faster out of the internal graphic ram. so the main RAM can get the data faster.
you dont have to worry about that because you CANT use 2.0 speed.
the FPS difference is not HUGH. but it's there.

well... that depends on how much the game require of memory to run.
also depends on how much memory your graphic card has.

if you have 1,5 gigabyte you are not gonna fell it because there is no game (that i have heard of) that require more then that.
it is using all graphic ram it has before it goes over to main ram. so the more you need of internal gpu memory the bigger the difference.