No budget Iceclock so whatever you think.
Hexit - Why not past 400w? I've just bought this unit from someone else relatively cheap so thought as it's a 750w psu it would handle most cards?
coz it is a cheap psu mate they retail for around £20-30, consider it to the price of a decent 750w psu. the cheapest half decent 1 would be around £55, average about £70, high end £100+. things like stable ripple control, over volt protections, short protections tend only to exist in name on cheaper psu's and some are more a fire hazard than power supply unit.
its the 1 thing you dont skimp on when building a pc. as a dodgey psu can and will take the pc with it if it blows.