eVGA is releasing a GeForce GTX 275 FTW-edition. This is a GeForce GTX 275 which is heavily pre-overclocked and covered with full warrabty as such.
I say heavily here as eVGA is really stepping it up ;) The GPU core, shaders and memory will be clocked towards 713, 1512 and 2520 MHz respectively. This will bump up perfformance 10~15%
Now the reference models are all clocked at 633, 1404 and 2268 MHz respectively. Not even the Zotac AMP edition will come close to this one. Obviously a FTW product does not come cheap, expect a 299 USD price tag.