The 128mb Msi Geforce 4 Ti4200, of the reviews I've read the msi beats the gainward in terms of core overclocking, here are the results I have stably gotten with my msi;
Core 330mhz Memory 580mhz (up from a default of 250/444)
However I felt that 300/515 were fast enough for most games nowadays, but after playing the ut2003 and Nolf2 demo's I'm starting to think it's time to crank it back up! I've also heard alot of great overclocks from the Other Msi owners on these forums, and the msi comes with a great bundle of software/games, not to mention the slick looking card itself.