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Corsair RM850x Shift — 850 W · Gold
Corsair

Corsair RM850x Shift

850 W · Gold

90
/ 100
From $179
VS
be quiet! Dark Power Pro 13 1300W wins by 2
be quiet! Dark Power Pro 13 1300W — 1300W · 80+ Titanium · Silent
be quiet!

be quiet! Dark Power Pro 13 1300W

1300W · 80+ Titanium · Silent

92
/ 100
From $449
Specdex verdict

be quiet! Dark Power Pro 13 1300W takes it — here’s why.

In our weighted Specdex score, Corsair RM850x Shift lands at 90 and be quiet! Dark Power Pro 13 1300W at 92. That puts be quiet! Dark Power Pro 13 1300W ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Corsair RM850x Shift if…

  • Modular cabling on most
  • ATX 3.1 / 12V-2x6 support
  • 10-year warranty on many

Pick be quiet! Dark Power Pro 13 1300W if…

  • Quietest 1300W PSU
  • 80+ Titanium efficiency
  • 12-year warranty
Corsair RM850x Shift 90
vs
92 be quiet! Dark Power Pro 13 1300W

Score breakdown

Corsair RM850x Shift
90
efficiency 90
noise 86
cables 86
value 84
build 0
features 0
be quiet! Dark Power Pro 13 1300W
92
efficiency 100
noise 0
cables 0
value 84
build 96
features 92

Specs side-by-side

Corsair RM850x Shift versus be quiet! Dark Power Pro 13 1300W — full spec comparison
Spec Corsair RM850x Shift be quiet! Dark Power Pro 13 1300W
Wattage
850 W
1300W
Efficiency
Gold
80+ Titanium
Cooling
135 mm Silent Wings (semi-passive)
Modular
Fully modular
12VHPWR
Native cable included
Warranty
12 years

Corsair RM850x Shift

Pros
  • +Modular cabling on most
  • +ATX 3.1 / 12V-2x6 support
  • +10-year warranty on many
Cons
  • Bulky on higher wattages
  • Fan noise varies by load
  • Cable length may not fit some cases

be quiet! Dark Power Pro 13 1300W

Pros
  • +Quietest 1300W PSU
  • +80+ Titanium efficiency
  • +12-year warranty
Cons
  • Premium pricing
  • Silent Wings 135 mm fan rare to source for replacement
  • Only one 12VHPWR cable included

FAQ: Corsair RM850x Shift vs be quiet! Dark Power Pro 13 1300W

Which is better, Corsair RM850x Shift or be quiet! Dark Power Pro 13 1300W? +

be quiet! Dark Power Pro 13 1300W scores 92 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Corsair RM850x Shift worth the price? +

At $179, Corsair RM850x Shift delivers a Specdex score of 90 — strongest in efficiency.

Is be quiet! Dark Power Pro 13 1300W worth the price? +

At $449, be quiet! Dark Power Pro 13 1300W delivers a Specdex score of 92 — strongest in efficiency.

Does Corsair RM850x Shift or be quiet! Dark Power Pro 13 1300W last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.