Cooler Master GX III 1250W ATX v3.0 PSU Review

Efficiency Normal, Light & Super-Light Loads

avg_efficiency_normal_loads1_115V

avg_efficiency_normal_loads1_230V

avg_efficiency_low_loads1_115V

avg_efficiency_low_loads1_230V

efficiency_ultra_low_load1_115V

Efficiency is decent at normal loads compared to similar spec units and high at light and super-light loads.

Average Efficiency

avg_eff_115V

avg_eff_230V

The platform’s average efficiency is decent at 115V and high enough at 230V.

Average PF

avg_pf_115V

avg_pf_230V

The APFC converter registers impressive performance!

Average Efficiency 5VSB

5VSB_efficiency_115V

5VSB_efficiency_230V

The 5VSB rail is efficient enough. Back in the day, I remember that a 5VSB rail with 80% efficiency was highly efficient, but this level is close to the usual one nowadays.

Vampire Power

Stand_By_115V

Stand_By_230V

Vampire power should be lower, especially at 230V.