What GPU to buy ?

[Deleted]

I'm trying to build my first computer but i can't seem to decide what graphics card to buy.

the HD7850
the gtx 650 TI
or the gtx 660

Which one is has the best money for performance ratio etc.

thanks for the responses.

ASRock Z77 Pro3 - motherboard - ATX - LGA1155 Socket - Z77
GeIL DDR3 EVO CORSA Series Dual Channel Kit - memory - 8 GB : 2 x 4 GB - DIMM 240-pin - DDR3
Antec Basiq BP550Plus - power supply - 550 Watt
HanJung TRON310 - mid tower - ATX
ASUS DRW 24B5ST - DVD RW ( R DL) / DVD-RAM drive - Serial ATA
Arctic Cooling Freezer i30 - processor cooler
Intel Core i5 3570K / 3.4 GHz processor
Seagate Barracuda ST1000DM005 - hard drive - 1 TB - SATA-300

This is my build for now.
Any comments on this are appreciated aswell.

[Sthos]

Quick comparison http://www.anandtech.com/bench/Product/549?vs=660

I'm an nvidia fan so I would go that way, but really between the 7850 and the 660 you might not see much difference depending on what your doing. The 7850 would save you about $30 - $100 depending on which manufacture you go with.