Power Draw Tests
At stock we can see the ASRock Z68 Extreme7 Gen3 and GIGABYTE G1.Sniper2 line up fairly close to each other. Overclocked you can see a bit of an increase in power draw, but the figure isn't anything crazy.
At stock, CPU temperature was really strong. Overclocked we do of course see a strong jump in heat due to the extra voltage, but overall, 67c isn't a number we'd be worried about.