Out of the box, the power draw numbers on the ASUS Maximus VI Impact sit a little higher than the other boards. Considering the amount of features that are placed on this tiny board, it doesn't come as a huge surprise to us, and while it's higher, it's only slightly higher.
Looking at load numbers, though, we can see that it's fairly standard. Overclocking as always brings a bump in both areas, but the numbers aren't at worrying levels.
Looking above, you can see the idle number sits a little higher than the other Z87 boards. Load numbers at stock are fairly standard, though, and you can see it falls in between the other Z87 offerings.
Overclocking doesn't change the idle temperature at all, but you can see that the load jumps up. What's surprising, though, is that it doesn't jump up to that 99c number that we see most the time. While not far off it, when we're hitting almost 100c (throttling point), every degree we can get away from it is appreciated.