and ATI is how good in OpenGL? if you plan to buy GPU now and want to have a decent frames in BOB later....also 4850 has that awful cooler....so you must invest in better cooler....also it demands more power....

EDIT: ops it performs well in opengl (at least in Prey) according to this bench...its faster than 8800GTS 512

http://www.interijernet.hr/foto.php?...243&idrf=96428

still...it has awful cooler and demands more power (compared to the 8800gts512)