I need help with Graphics/Video Cards? What's the difference between all these cards?

Question

This is the website I'm looking at.

http://search.dell.com/results.aspx?s=gen&c=us&l=en&cs=&k=Geforce+nvidia+512&cat=prod

I need a 512MB card for a game called Crysis. Why are some cards that are 512MB priced at $70 and others at $500? They all have similar titles? 6800, 7800, 8800 Geforce, ATI,

What the hell is the difference?

Answer 1

you will want a dx10 card to play crysis. look at the nvidia 8000 series graphics cards. Go to this site instead of dell for computer parts.

http://www.newegg.com