Corsair
Corsair HX1000i
1000 W · Platinum
92
/ 100
From $279
VS
Seasonic Vertex PX-1200 wins by 1
Seasonic
Seasonic Vertex PX-1200
1200 W · 80+ Platinum · ATX 3.0
93
/ 100
From $289
Specdex verdict
Seasonic Vertex PX-1200 takes it — here’s why.
In our weighted Specdex score, Corsair HX1000i lands at 92 and Seasonic Vertex PX-1200 at 93. That puts Seasonic Vertex PX-1200 ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Corsair HX1000i if…
- ✓Modular cabling on most
- ✓ATX 3.1 / 12V-2x6 support
- ✓10-year warranty on many
Pick Seasonic Vertex PX-1200 if…
- ✓Rock-solid ripple
- ✓Platinum efficiency
- ✓Long 12-year warranty
Corsair HX1000i 92
vs 93 Seasonic Vertex PX-1200
Score breakdown
Corsair HX1000i
92 efficiency 92
noise 86
cables 86
value 84
Seasonic Vertex PX-1200
93 efficiency 96
noise 92
cables 90
value 86
Specs side-by-side
| Spec | Corsair HX1000i | Seasonic Vertex PX-1200 |
|---|---|---|
| Wattage | 1000 W | 1200 W |
| Efficiency | Platinum | 80+ Platinum |
| Standard | — | ATX 3.0 |
| Connectors | — | 1× 16-pin 12VHPWR (600W) |
Corsair HX1000i
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
Seasonic Vertex PX-1200
Pros
- +Rock-solid ripple
- +Platinum efficiency
- +Long 12-year warranty
Cons
- −Heavy at 2.6 kg
- −Expensive
- −Cables stiff
FAQ: Corsair HX1000i vs Seasonic Vertex PX-1200
Which is better, Corsair HX1000i or Seasonic Vertex PX-1200? +
Seasonic Vertex PX-1200 scores 93 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is Corsair HX1000i worth the price? +
At $279, Corsair HX1000i delivers a Specdex score of 92 — strongest in efficiency.
Is Seasonic Vertex PX-1200 worth the price? +
At $289, Seasonic Vertex PX-1200 delivers a Specdex score of 93 — strongest in efficiency.
Does Corsair HX1000i or Seasonic Vertex PX-1200 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.