Power And Heat
Except for the GPUs, which sport different architectures, our power consumption chart reflects the notion that better performance necessitates more draw from the wall. That is to say, the highest score is actually the worst score, even though it’s also tied to higher performance. In the case of the graphics cards, Nvidia's Kepler design tends to offer higher frame rates at lower power than AMD's GCN.
The $1300 PC also runs exceptionally cool in its stock form. Conversely, if you end up building the $2500 configuration, you'll want to keep your room temperature below 34° C to prevent thermal throttling.