I look to Cnet or http://www.tomshardware.com for benchmarks to decide.
I am looking for a PCI Express graphics card in the range of $120-$150 to go with an Asus P5LD2 motherboard (Intel 945 chipset based).
Would I be better to choose a GeForce 6600 256 MB card or a GeForce 6600GT 128 MB card (higher performance, less memory) for $30 more?
Thanks

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic