Well.....FYI. Having done a bit of a read around ont he web, I have discovered that in past iterations of ATI cards, the VTX cards have not been compatible with the MSI Afterburner voltage overclock function! This for me would be a damn good reason not to buy the card. These cards cost on average £100 more than the GTX 580 (which has been out for more than a year), but out of the box they certainly dont perform £100 better. However they are known monster overclockers so risking getting a card upon which I couldnt tweak voltages would be a huge no no NO!