Between the C1500 Platinum and VERTEX GX-1200, the C1500 Platinum comes out ahead in wattage and efficiency, while the VERTEX GX-1200 wins on warranty. Overall, the C1500 Platinum scores 90.7 and the VERTEX GX-1200 scores 77.5 on our Mars Score.
Which should you buy?
The C1500 Platinum is the clear pick on raw spec strength, leading by 13.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the C1500 Platinum if you care most about wattage and efficiency. The biggest gaps in its favor are wattage, efficiency.
Pick the VERTEX GX-1200 if you care most about warranty. Its strongest claims are warranty.
Both ship with comparable modular, atx 3.0 / 12vhpwr, so those specs don't separate the two — focus on the differences below.
Bottom line: the C1500 Platinum is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why NZXT - C1500 Platinum wins
- ▲Wattage — 25.00% more. 1500 W vs 1200 W.
- ▲Efficiency: 80+ Platinum (vs 80+ Gold).
Why Seasonic - VERTEX GX-1200 wins
- ▲Warranty — 2.00 yrs more. 12 vs 10.
Spec comparison
Spec
| Spec | NZXT - C1500 Platinum | Seasonic - VERTEX GX-1200 |
|---|---|---|
| Wattage | 1500 Wlead | 1200 W |
| Efficiency | 80+ Platinumlead | 80+ Gold |
| Form factor | ATX | ATX |
Features
| Spec | NZXT - C1500 Platinum | Seasonic - VERTEX GX-1200 |
|---|---|---|
| Modular | full | full |
| ATX 3.0 / 12VHPWR | true | true |
| Warranty | 10 yrs | 12 yrslead |
Frequently asked
Spec-level deep dives
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