550W-650W PSU Roundup 2014

Written by Matthew Lambert

June 20, 2014 | 10:34

Tags: #550w #600w #650w #modular-psu #psu

Companies: #bit-tech

Low Load Efficiency

As well as our usual efficiency tests that begin at a load of 200W, we now measure the efficiency at 22.5W, 50W and 100W, which are relevant loads for idle and light work periods - important for many users.

Low Load Efficiency

22.5W load test

  • Cooler Master VS-Series 550W
  • Corsair CS-M Series 550W
  • Enermax Revolution X't 630W
  • Seasonic M12II Evo Bronze 620W
  • Antec TruePower Classic 550W
  • Super Flower Leadex Gold 650W
  • Be Quiet! Power Zone 650W
  • Codegen Super Power 600W
  • 82.20
  • 72.70
  • 70.20
  • 70.10
  • 69.70
  • 67.80
  • 61.40
  • 58.70
0
10
20
30
40
50
60
70
80
90
Percentage (higher is better)

Low Load Efficiency

50W load test

  • Cooler Master VS-Series 550W
  • Corsair CS-M Series 550W
  • Enermax Revolution X't 630W
  • Antec TruePower Classic 550W
  • Super Flower Leadex Gold 650W
  • Seasonic M12II Evo Bronze 620W
  • Be Quiet! Power Zone 650W
  • Codegen Super Power 600W
  • 89.50
  • 84.60
  • 83.00
  • 82.70
  • 81.70
  • 80.90
  • 76.90
  • 71.60
0
10
20
30
40
50
60
70
80
90
Percentage (higher is better)

Low Load Efficiency

100W load test

  • Cooler Master VS-Series 550W
  • Corsair CS-M Series 550W
  • Antec TruePower Classic 550W
  • Enermax Revolution X't 630W
  • Super Flower Leadex Gold 650W
  • Seasonic M12II Evo Bronze 620W
  • Be Quiet! Power Zone 650W
  • Codegen Super Power 600W
  • 92.90
  • 90.60
  • 89.30
  • 89.10
  • 88.30
  • 86.20
  • 85.60
  • 77.80
0
25
50
75
100
Percentage (higher is better)

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