The GeForce GTX 580 has been added to the list.
For a system under load the following power consumption figures are given:
1x 580 = 451W /12 = 37.6A
That is based on a system with an X58 based motherboard, Core i7 920 @ 3.70GHz and 6144 MB (3x 2048 MB) G.Skill DDR3 RAM.
It seems the GeForce GTX 580 uses slightly less power than the GeForce GTX 480, although there are reports on other sites it uses more power with the older VBIOS.
http://www.techspot.com/review/337-asus-geforce-gtx-580/page11.html
Based on that I've given the following recommendation:
GeForce GTX 580 - 40A and a 600W PSU minimum
The GeForce GTX 570 has been added to the list.
Please note the following though as reviewers are changing their method of measuring power consumption:
After long deliberation we decided to move away from Furmark and are now using a game like application which stresses the GPU 100% yet is much more representable of power consumption and heat levels coming from the GPU."
http://www.guru3d.com/article/geforce-gtx-570-review/8
Techspot have also started to measure the power consumption differently and have given very similar results for the GTX 570's full system power consumption: http://www.techspot.com/review/346-gigabyte-geforce-gtx-570/page11.html
For a system under load the following power consumption figures are given:
1x 570 = 369W /12 = 30.8A
That is based on a system with an X58 based motherboard, Core i7 965 @ 3750 MHz and 6144 MB (3x 2048 MB) Corsair DDR3 RAM @ 1500 MHz.
http://www.guru3d.com/article/geforce-gtx-570-review/8
Based on that I've given the following recommendation:
GeForce GTX 570 - 35A and a 550W PSU minimum