Just about to buy;
Sapphire Radeon R9 280X Vapor-X OC 3072MB GDDR5 PCI-Express Card
My current PSU, being 400w is no where near good enough, however, what sort of PSU am I looking for to support a single (Sapphire Radeon R9 280X Vapor-X OC 3072MB GDDR5 PCI-Express Card).
I've looked about and...