That gpureview site is about what "looks good on paper" type comparison.
I agree with everybody on the HD4650 being the better card.
Here's another review for proof:
techPowerUp :: Sapphire HD 4650 OC Edition 512 MB Review :: Page 6 / 30
The HD4650 pretty much beats the 9500GT in most games.
Plus, it's on a smaller fabrication so it consumes less power.