Can Dell XPS 8300 460W PSU can support HD6950? i have checked the suggested power supply of HD6950 is 550W, but one of the system graphic card options in Dell UK is contained a HD6950, is that means i can upgrade the graphic card without change the PSU?
If you want to objectively, accurately and scientifically determine what PSU power is required for your Vid card and PC in both watts and 12v rail amps., the forum Utility link below will show you how easy it is to calculate this information and objectively determine which PSUs are quality built, reliable PSUs that can meet your needs. Be advised that the available 12v rail amps. is just as important as the total PSU wattage. You need both to be correct.
Halloween is over, why haven't the boogey-men gone home ?
Here in the US they have a GTX560Ti option with the same psu.
Should be able to upgrade your card without running out and buying a new psu.