New computer

[kandrathe]

And 910W is WAY overboard for any single CPU / single GPU system. He'll probably be drawing 250W or so playing a game, maybe less.

Well, depending on what he does... 550W would be the minimum I'd consider. I tend to look at floating things a little higher just to accommodate possible future expansion.

Based on Peak draw on currently available equipment

Video Card -- up to 300W at load
CPU -- up to 200W at load
Drives -- 6-10 watts each
Sound -- ??

Generally, I'm willing to pay the price difference (60$ for most mfg from 550W to 900W) to defend against frying an expensive component due to under powering it.