"Now let's examine the Geforce 8600 GT, which falls in the $150 to $170 price range. Like its GTS brother, it's a decent performer - and also like its GTS brother, it's priced too high to be recommended. With only slightly better performance than the 7600 GT and X1650 XT - both of which can be bought for about $100 online - the 8500 GT is a bit tough to justify. In addition, the X1950 PRO is priced similarly to the 8600 GT, and offers much greater gaming performance for the dollar."
in tomshardware.com