Just buy the cheapest. BTW, Palit has released 9600GT Super 1GB GDDR3 Edition which costs 6K. Might want to consider it if you intend to show off your GPU memory, but remember that this means unless you run Linux, BSD, Solaris, Macintosh 10.5, or Win64, only 3GB desktop RAM can be used since win32 has a limit of 4GB RAM. 512MB version is 5.5K now, so I am surprised at how cheap GDDR3 has become, its even cheaper than standard PC-DDR3.