Power And Temperature
Both of the platforms tested for this article employ an 84 W host processor, but the Radeon R9 290 in the previous quarter has a 250 W TDP, while the GeForce GTX 770 should max out in the 195 W range.
On the whole there's not a lot of difference to talk about here, although the extra voltage fed to the Core i5-4690K definitely brings up its power draw when overclocked.
Now lets consider the thermal load. Noctua's cooler achieves a low 22 degree delta under load at stock settings. When overclocked, the CPU actually exceeds the temperature we saw in the previous quarters marathon, but keep in mind that the new build's Core i5-4690K has been fed significantly more voltage and is running at a higher clock.
As for the GeForce GTX 770, it appears strange that the temperature went down when being overclocked, but this is a result of increasing the fan speed.