be quiet! Pure Power 13 M 650W ATX v3.1 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_115

efficiency_ultra_low_load1_230

Efficiency is high across all load ranges, except for the super-light ones, where it is moderate.

Average Efficiency

avg_eff_115V

avg_eff_230V

The average efficiency meets the Cybenetics Platinum criteria. I don’t know why be quiet! decided to “downgrade” it to Gold, as this platform is so efficient.

Average PF

avg_pf_115V

avg_pf_230V

The APFC converter achieves good performance at 115V, but it can do better at 230V.

Average Efficiency 5VSB

5VSB_efficiency_115V

5VSB_efficiency_230V

The 5VSB rail is highly efficient.

Vampire Power

Stand_By_115V

Stand_By_230V

Vampire power is low at 115V but exceeds 0.1W at 230V.