Im buying a new one the 6150 just aint fitting for my performance. But i have a choice of 2 im not sure which one is better. First one is from xfx and is already over clocked for you. Tech Specs Shader Clock: 1355 MHz Clock rate: 620 MHz Memory Clock: 1.6 GHz Dual Link DVI - Supporting digital output up to 2560x1600: Dual Chipset: GeForce 8600 GT Memory: 256 MB Bus Type: PCI-E Memory Type: DDR3 Memory Bus: 128 bit Highlighted Features: Dual DVI Out , RoHS , TV Out , HDTV ready , SLI ready Next one is just a normal 8600gt But has 512 ram which is more than the other. Dual Link DVI - Supporting digital output up to 2560x1600: Yes Engine Clock: 540 MHz Memory Clock: 800 MHz Shader Clock: 1180 MHz Chipset: GeForce 8600 GT Memory: 512 MB Bus Type: PCI-E Memory Type: DDR2 Memory Bus: 128-bit Highlighted Features: HDCP Ready , TV Out , RoHS , SLI ready , HDTV ready , Vista Which one should i buy?