We start off with a couple of benchmarks that mainly measure CPU performance. The differences between the motherboards in this area are small, but we do see a difference between boards that do and do not follow Intel's turbo specifications. Most boards use the maximum turbo speed meant for a single core, on all cores. The result is a faster, but also less power efficient system, as we'll see later. It should be noted that this 'aggressive turbo' can be enabled or disabled in the BIOS if you wish.
The CPU performance of the ASRock Fatal1ty Z270 Gaming-ITX/ac doesn't differ much at all from the other boards. The results are fine.