Corsair
Corsair RM1000x Shift
1000 W · 80+ Gold · ATX 3.1
92
/ 100
From $229
VS
Seasonic Prime TX-1600 wins by 3
Seasonic
Seasonic Prime TX-1600
1600 W · Titanium
95
/ 100
From $549
Specdex verdict
Seasonic Prime TX-1600 takes it — here’s why.
In our weighted Specdex score, Corsair RM1000x Shift lands at 92 and Seasonic Prime TX-1600 at 95. That puts Seasonic Prime TX-1600 ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Corsair RM1000x Shift if…
- ✓ATX 3.1 + 12V-2x6
- ✓Side-mounted cables
- ✓Quiet zero-RPM
Pick Seasonic Prime TX-1600 if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Score breakdown
Corsair RM1000x Shift
92 efficiency 90
noise 94
cables 96
value 88
Seasonic Prime TX-1600
95 efficiency 95
noise 86
cables 86
value 84
Specs side-by-side
Spec
Corsair RM1000x Shift
Seasonic Prime TX-1600
Wattage
1000 W
1600 W
Efficiency
80+ Gold
Titanium
Standard
ATX 3.1
—
Connectors
1× 12V-2x6 (600W)
—
Fan
135 mm FDB
—
Corsair RM1000x Shift
Pros
- +ATX 3.1 + 12V-2x6
- +Side-mounted cables
- +Quiet zero-RPM
Cons
- −Bulky side depth
- −Price creep
- −Gold not Platinum
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
FAQ: Corsair RM1000x Shift vs Seasonic Prime TX-1600
Which is better, Corsair RM1000x Shift or Seasonic Prime TX-1600? +
Seasonic Prime TX-1600 scores 95 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Corsair RM1000x Shift worth the price? +
At $229, Corsair RM1000x Shift delivers a Specdex score of 92 — strongest in cables.
Is Seasonic Prime TX-1600 worth the price? +
At $549, Seasonic Prime TX-1600 delivers a Specdex score of 95 — strongest in efficiency.
Does Corsair RM1000x Shift or Seasonic Prime TX-1600 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.