The Geforce 9500 GT is the same design as the 8600 GT, a year newer, and on a thinner die wafer, so it's now four years old, which in gaming terms is VERY old, and in Geforce terms, is already getting shorted badly when driver updates concentrate on the new Geforces, and ignore the old ones. It's not any better than the HD 2600 Pro was, which is named as the minimum for DA2, but since the Geforce minimum is a 7900 GS, that makes Bioware's choice of a 2600 Pro questionable.
Either the 2600 Pro is correct and the Geforce choice should be the 7800 GS, or the 7900 GS is correct, and the Radeon should be a 2600 XT. Yes, I know that the Geforce 7n00s are FIVE years old, and the HD 2n00s are also four years old. But if a 7900 GS is "accurate", then technically an 8600 GT is slightly below that minimum, as is the 9500 GT.