video card comparison question

[kayliu]

http://www.visiontek.com/products/cards/retail/x1650pro_PCIe.html

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150202

which of these video card is better?
please help people..

 

[wuyue_boy]

7900GS of course
why there's no response?