How Many Watts do I Need?!?
Ive seen this question asked too many times and although its indirectly answered Ill answer it more directly:
- If you are concerned about getting a PSU sufficient enough for a high end system (say a SLI setup), check out a PSU with at least 30A on the 12V rail
- If you are getting a PSU for a system with a single high end video card than 28A-32A should give plenty of room
- Midrange systems should shoot for 24A on the 12V rail
- Really low-end, older or specialty systems can consider 18A on the 12V rail
Realistically, anythingg below 18A on the12V rail should not be considered. Why specify by amperage rather than wattage? Well anything that can meet the amperage guidelines as noted above will provided enough power for your setup