600-650W Power Supplies
A 600W to 650W power supply is a sensible choice for a mainstream gaming or work PC, with enough headroom for a mid-range graphics card and room to spare. Our 600W and 650W PSU range covers 80 Plus efficiency ratings, modular and semi-modular cabling and the latest ATX standards, all in UK stock with a full warranty and a live price on each listing. Choosing the right wattage matters, so do not skimp on a cheap unit. Our power supply guide explains how much you really need.
600-650W Power Supplies Buying Guide and FAQ
This 600-650W Power Supplies range groups power supplies by output. Below are the common questions on what wattage suits your build.
Is a 600-650W power supply enough for my PC?
As a rough guide, 600 to 650W suits an entry to mid-range gaming PC. Leaving some headroom keeps the unit cool and quiet.
What graphics card does a 600-650W PSU pair with?
Size the PSU around the graphics card, since it is the biggest draw. A 600-650W unit works with mid-range cards, but always check the card maker's recommended wattage and that the PSU has the right power connectors, including the 12V-2x6 (12VHPWR) plug on newer Nvidia cards.
Should I get more wattage than I need?
A little headroom is sensible, because it keeps the PSU running cool, quiet and efficient, and leaves room for a future upgrade. There is no need to go wildly over the top, so pick a wattage that covers your parts with some margin and choose a reputable 80 Plus rated unit.