How much power does 55nm save? - NVIDIA's First 55nm GPU: GeForce 9800 GTX+ Preview
EVGA GeForce 9800 GT (512MB DDR3 PCI-E) Review: A small GPU that isn't too bad, but it doesn't measure up to the competition. - PC Components - Graphic Cards - PC World
GeForce 9800 GT | Mid Range GPU from 2008 tested in 2020! - YouTube
Nvidia GeForce 9800 GTX 512MB | bit-tech.net
PNY GeForce 9800 GTX+ Video Card VCG98GTXPXPB - Newegg.com