Kepler Nvidia GeForce GTX 780

[gumballguy]

Standard engineering protocol: always have a safety factor. You never want to push something to 95% of its thermal envelope if you can avoid it

But you've already accounted for that in the design of the 680.

If you do it again, you're doubling up your safety margin.

So, 195w and 375 watt (slight power saving) seems perfectly fine. Ie: not underclocked gpus.

Ignore the "650w PSU" number imho, it'll only generate some confusion.