- Jun 13, 2013
- 433
- 49
- 91
A few points:
Power supplies tend to be most efficient in the middle of their range. Ideally you want to be drawing about half of the max rating.
http://www.overclock3d.net/gfx/articles/2006/11/22163203695l.jpg
I looked up that article and near as I can tell the Unigine's Heaven Benchmark version 4.0 benchmark they ran is not a complete system stress test. It is a gaming style benchmark that simulates a gaming GPU load. It does not really stress the CPU and it does not stress the GPU as hard as something like Furmark or OCCT would. It does seem like a realistic gaming load, it is just not a max power draw stress test.
If you can afford 2x 290s or 2x 780s you can afford a new PS!
Im £1500 into a build which has cost me £2450! This was supposed to be a flutter on a few new bits of kit. Only the case is left!