I'm trying to choose between these two power supplies:
XFX Core Edition Pro 550W
XFX Core Edition Pro 650W
Both are highly rated. The second one is $10 cheaper, for 100W more.
My only concern is, could it be overkill? I know extra wattage isn't going to damage anything, but I'm not sure it's going to be running efficiently. This calculator recommends 465-495W for my build, while this one specifies a minimum wattage of 310-330, and recommends something in the range of 350-380.
I don't plan on overclocking or running multiple video cards any time soon. Is the 650W going to be running too light a load to work efficiently? If so, will the inefficiency ever add up to the $10 difference? And if I decide to overclock down the line, will the 550W give me enough room to do that?
XFX Core Edition Pro 550W
XFX Core Edition Pro 650W
Both are highly rated. The second one is $10 cheaper, for 100W more.
My only concern is, could it be overkill? I know extra wattage isn't going to damage anything, but I'm not sure it's going to be running efficiently. This calculator recommends 465-495W for my build, while this one specifies a minimum wattage of 310-330, and recommends something in the range of 350-380.
I don't plan on overclocking or running multiple video cards any time soon. Is the 650W going to be running too light a load to work efficiently? If so, will the inefficiency ever add up to the $10 difference? And if I decide to overclock down the line, will the 550W give me enough room to do that?