How Accurate are these GPU Power Draw Graphs?

[turkey3_scratch]

These are taken directly from Tomshardware's review on a recent Gigabyte 980Ti. Some of this stuff just doesn't make sense. The 980Ti drawing 380W under torture? I mean, that is seriously wicked high. The 390X is only doing 320W, which seems realistic. Then the 970 is drawing less under torture instead of normal gaming load? Are these accurate?

 

[Jayhawker32]

This website lists power draw at 463 watts for the total system with a Gigabyte GTX 980 Ti in it. I don't know how much you would have to subtract to get just the GPU alone though.

http://www.overclockers.com/gigabyte-gtx-980-ti-g1-gaming-graphics-card-review/