The reference board used on RX 470 / 480 is pretty well built in terms of the VRM, except for the input power distribution of course. Some of the custom cards have significantly weaker VRM than the reference card does, MSI Gaming X for example. MSI RX 480 Gaming X is using 4-phase GPU VRM instead of the 6-phase used on reference cards. Also instead of using separate high & low-side mosfets, MSI uses OnSemi PowerPhase dual mosfet packages which have significantly higher power density and are much harder to cool.
post #71 of 860
7/13/16 at 6:44am