ASRock Phantom Gaming-ITX/AC Z390 Motherboard Review

Overclocking

The i9-9900K is a beast and throws out a significant amount of heat when locked to 5 GHz on all cores. It also draws a fair bit of power too. With that in mind, motherboards with smaller VRM cooling and fewer power phases tend to fall behind in overclocking benchmarks; even though they all hit 5 GHz. Fortunately, that wasn’t an issue for this motherboard, and it’s clear that ASRock put together a great piece of hardware, as it competed with much bigger and more expensive motherboards fairly well.

It didn’t break any records, but it wasn’t built to. However, we saw a good boost in every benchmarks performance. 3DMark reached an impressive 23897, similar to the ASUS WS Pro Z390. It did well in WPrime too, cutting the time down to 79 seconds, similar to that of the Aorus Master, and bigger ASRock Extreme Pro Z390 boards. The same in Cinebench too, with single core performance being our third highest yet at 219, with an all core score of 2186; not too far off our highest of 2207 for Z390.

CPU-Z

Scores

• 3DMark – 23897
• WPrime – 2.905/79.81
• CineBench – 219/2186
• Power Consumption – 44/204
• Power Consumption OC – 59/273

3DMark Firestrike

WPrime

Cinebench R15

Power Consumption

Stock

Overclocked