650 vs 7750

XFX 
FX-775A-ZDP4


or


Asus 
GTX650-DCO-1GD5


they both (supposedly) have 6 pin PCi-e connectors, and both can (supposedly) do thier multi GPU thing (sli/crossfire) which is better? anything else better for the money?

here is my build so far, cant decide between the 2 cards above.

http://pcpartpicker.com/p/AAoH

You're spending more on a case then a CPU...........just going to put that out there!

You could spend less money and get a better card if you went with this 7770

http://pcpartpicker.com/part/msi-video-card-r7770pmd1gd5

Here are the 7770 vs 650 benchmarks

http://www.anandtech.com/bench/Product/536?vs=681

http://pcpartpicker.com/p/ABc8

better?