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Seasonic Prime TX-1600 — 1600 W · Titanium
Seasonic

Seasonic Prime TX-1600

1600 W · Titanium

95
/ 100
From $549
VS
Seasonic Prime TX-1600 wins by 5
Corsair RM850x Shift — 850 W · Gold
Corsair

Corsair RM850x Shift

850 W · Gold

90
/ 100
From $179
Specdex verdict

Seasonic Prime TX-1600 takes it — here’s why.

In our weighted Specdex score, Seasonic Prime TX-1600 lands at 95 and Corsair RM850x Shift at 90. That puts Seasonic Prime TX-1600 ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Seasonic Prime TX-1600 if…

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

Pick Corsair RM850x Shift if…

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

Derived from the sub-score breakdown · not a separate test

Efficiency

Seasonic Prime TX-1600

Compared on the efficiency sub-score

Seasonic Prime TX-1600 leads on efficiency (95 vs 90).

Noise

Tie

Compared on the noise sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Cables

Tie

Compared on the cables sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

Corsair RM850x Shift

Specdex score per dollar at MSRP

Corsair RM850x Shift more score per dollar ($179 vs $549).

Seasonic Prime TX-1600 95
vs
90 Corsair RM850x Shift

Score breakdown

Seasonic Prime TX-1600
95
efficiency 95
noise 86
cables 86
value 84
Corsair RM850x Shift
90
efficiency 90
noise 86
cables 86
value 84

Specs side-by-side

Seasonic Prime TX-1600 versus Corsair RM850x Shift — full spec comparison
Spec Seasonic Prime TX-1600 Corsair RM850x Shift
Wattage
1600 W
850 W
Efficiency
Titanium
Gold

Seasonic Prime TX-1600

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

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

FAQ: Seasonic Prime TX-1600 vs Corsair RM850x Shift

Which is better, Seasonic Prime TX-1600 or Corsair RM850x Shift? +

Seasonic Prime TX-1600 scores 95 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.

Is Seasonic Prime TX-1600 worth the price? +

At $549, Seasonic Prime TX-1600 delivers a Specdex score of 95 — strongest in efficiency.

Is Corsair RM850x Shift worth the price? +

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

Does Seasonic Prime TX-1600 or Corsair RM850x Shift 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.

Which is better for efficiency, Seasonic Prime TX-1600 or Corsair RM850x Shift? +

Seasonic Prime TX-1600 — leads on efficiency (95 vs 90). Compared on the efficiency sub-score.

Which is the better value, Seasonic Prime TX-1600 or Corsair RM850x Shift? +

Corsair RM850x Shift — more score per dollar ($179 vs $549). Specdex score per dollar at MSRP.