VRM Overview

The 16+2+2 phase power delivery has an elaborate cooling design given the sub $300 price tag as Gigabyte not only uses two very large heatsinks, but both are linked using a heatpipe too to help spread the load. The peak temperature was measured using our 4-channel data logger as 54°C with the software reporting 56°C after our 10-minute Cinebench R24 stress test.


Both the power phases and chokes make direct contact with the heatsinks using thermal pads. The heatsinks themselves use a few methods to boost surface area and improve cooling. Firstly, rather than just being lumps of aluminium, they have several rows of fins and some of these also feature smaller ridges on top to further boost surface areas, which should be able to catch some airflow from front case fans, but would certainly benefit from any local airflow such as an AIO liquid cooler pump with VRM cooling.


The 16 vCore phases are actually 8-phase with phase doubling, are 60 A using OnSemi NCP302155R phases while we also get two 60 A OnSemi 4CO6N phases for SOC and two 4C10N phases for MISC.


The power delivery uses a Richtek RT3678BE PWM controller, we measured 240 W from the 8-pin EPS12V cable during full load using our Ryzen 9 9950X.