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Cooling Performance.
We used our preferred Fractal Design Celsius S24 AIO liquid cooler as this 240mm Asetek is similar to a number of coolers on the market and performs very well. As an added bonus it was supplied with an AMD AM4 mounting kit which means we have been able to use it on every platform of interest in recent times.
Cooling Performance Overview.
At stock clock speeds the Gigabyte Z390 Aorus Master exhibits impressively low CPU temperatures however when we overclocked to 5.0GHz the Gigabyte ran a few degrees warmer than the MSI Z390 Godlike. That was despite using the same CPU voltage and drawing less power than the MSI board and while the difference was slight it was consistent.
VRM temperatures were a completely different story as the Z390 Aorus Master is amazingly cool under load and beats out other comparable motherboards by some 20 degrees. It was interesting to see how this motherboard behaved when we tested with a Core i7-8700K that draws only slightly less power than the i9-9900K, where we saw the VRM temperatures drop even lower to the tune of five degrees. The power delivery hardware on this motherboard is absolutely top notch.
Power Draw
We use a combination of Powenetics software from Cybenetics along with software readings from HwiNFO to monitor CPU power draw through the EPS connectors to give precise power figures for the CPU, as well as the system as a whole.
Power Draw Overview
The Gigabyte Z390 Aorus Master draws less power than both the MSI MEG Z390 Godlike and the MEG Z390 ACE, which is both unexpected and impressive as we were using the same voltage settings.
\This suggests the VRM configuration used by Gigabyte is more efficient than the MSI hardware. However this has been achieved, Gigabyte is delivering the same performance with significantly less power and that is very welcome.
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