Skip to content
Specdex
Compare now
Seasonic Vertex PX-1200 — 1200 W · 80+ Platinum · ATX 3.0
Seasonic

Seasonic Vertex PX-1200

1200 W · 80+ Platinum · ATX 3.0

93
/ 100
From $289
VS
Seasonic Vertex PX-1200 wins by 2
NZXT C1500 Platinum — 1500 W · Platinum · ATX 3.1
NZXT

NZXT C1500 Platinum

1500 W · Platinum · ATX 3.1

91
/ 100
From $349
Specdex verdict

Seasonic Vertex PX-1200 takes it — here’s why.

In our weighted Specdex score, Seasonic Vertex PX-1200 lands at 93 and NZXT C1500 Platinum at 91. That puts Seasonic Vertex PX-1200 ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Seasonic Vertex PX-1200 if…

  • ✓Rock-solid ripple
  • ✓Platinum efficiency
  • ✓Long 12-year warranty

Pick NZXT C1500 Platinum if…

  • ✓Massive 1500 W headroom
  • ✓ATX 3.1 12V-2x6
  • ✓CAM software monitoring
Share this comparison: Share to Reddit X / Twitter

Winner by scenario

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

Efficiency

Seasonic Vertex PX-1200

Compared on the efficiency sub-score

Seasonic Vertex PX-1200 leads on efficiency (96 vs 94).

Cables

NZXT C1500 Platinum

Compared on the cables sub-score

NZXT C1500 Platinum leads on cables (92 vs 90).

Noise

Seasonic Vertex PX-1200

Compared on the noise sub-score

Seasonic Vertex PX-1200 leads on noise (92 vs 88).

Value for money

Seasonic Vertex PX-1200

Specdex score per dollar at MSRP

Seasonic Vertex PX-1200 more score per dollar ($289 vs $349).

Seasonic Vertex PX-1200 93
vs
91 NZXT C1500 Platinum

Score breakdown

Seasonic Vertex PX-1200
93
efficiency 96
noise 92
cables 90
value 86
NZXT C1500 Platinum
91
efficiency 94
noise 88
cables 92
value 86

Specs side-by-side

Seasonic Vertex PX-1200 versus NZXT C1500 Platinum — full spec comparison
Spec Seasonic Vertex PX-1200 NZXT C1500 Platinum
Wattage
1200 W
1500 W
Efficiency
80+ Platinum
80+ Platinum
Standard
ATX 3.0
ATX 3.1
Connectors
1× 16-pin 12VHPWR (600W)
1× 12V-2x6 (600W)

Seasonic Vertex PX-1200

Pros
  • +Rock-solid ripple
  • +Platinum efficiency
  • +Long 12-year warranty
Cons
  • −Heavy at 2.6 kg
  • −Expensive
  • −Cables stiff

NZXT C1500 Platinum

Pros
  • +Massive 1500 W headroom
  • +ATX 3.1 12V-2x6
  • +CAM software monitoring
Cons
  • −Overkill for most builds
  • −Expensive
  • −Fan a hair loud at max

FAQ: Seasonic Vertex PX-1200 vs NZXT C1500 Platinum

Which is better, Seasonic Vertex PX-1200 or NZXT C1500 Platinum? +

Seasonic Vertex PX-1200 scores 93 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Seasonic Vertex PX-1200 worth the price? +

At $289, Seasonic Vertex PX-1200 delivers a Specdex score of 93 — strongest in efficiency.

Is NZXT C1500 Platinum worth the price? +

At $349, NZXT C1500 Platinum delivers a Specdex score of 91 — strongest in efficiency.

Does Seasonic Vertex PX-1200 or NZXT C1500 Platinum 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 Vertex PX-1200 or NZXT C1500 Platinum? +

Seasonic Vertex PX-1200 — leads on efficiency (96 vs 94). Compared on the efficiency sub-score.

Which is better for cables, Seasonic Vertex PX-1200 or NZXT C1500 Platinum? +

NZXT C1500 Platinum — leads on cables (92 vs 90). Compared on the cables sub-score.