On this page http://www.tomshardware.com/reviews/geforce-gtx-460-gf104-fermi,2684-13.html where it shows the power consumption of the video card under load for the 1GB 460, is the 268w full system load wattage being used or just the video card? because if it's the full system load why would they need an 1100w PSU for the test?