GTX 295 vs 7770 vs 5870

[poorlurker]

I'm on edge about which to get because the 295 doesn't support dx11 and idk what that does. I got enough money for any of them but I don'y know. Which of these would be the best buy?

specs:
4gb 2x2 1333hz
AMD Phenom II X4 965 3.4GHz
400W PSU

 

[sam_p_lay]

The GTX295 is definitely the fastest of those. Is the 5870 the 1GB model?

 

[poorlurker]

yea
but i keep my resolution at 1280x1024 or 1440x900

 

[sam_p_lay]

Memory isn't just about resolution or anti-aliasing (though plenty of people will tell you it is ). The GTX295 isn't at a huge disadvantage there then with 896MB per GPU. If it was the 2GB 5870 I'd advise getting that, but you'll get more framerate from the GTX295. To be honest I'd just take whichever is cheaper (but not the 7770).