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
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
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
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.