I seen that they sell Alienware x51's with the gtx 660. I have an x51 and want to upgrade my x51 to that card. Where can I buy it at? I cant find it anywhere. Theres gtx 660 ti's though.
http://www.dell.com/us/p/alienware-x51/fs
http://www.dell.com/us/p/alienware-x51/fs