I cant seem to find these cards side by side anywhere. Not sure which one will be better... I have both of them here (brand new) but not sure which one to put in my Vista machine.
Check your card here.
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-2009-high-quality/3DMark06-v1.1.0-3DMark-Score,1468.html