Corsair - HX1500i (2023) vs Seasonic - VERTEX GX-1200
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Corsair - HX1500i (2023) | Seasonic - VERTEX GX-1200 |
|---|---|---|
| Wattage | 1500 W | 1200 W |
| Warranty | 10 yrs | 12 yrs |
| Efficiency | 80+ Platinum | 80+ Gold |
Between the HX1500i (2023) and VERTEX GX-1200, the HX1500i (2023) comes out ahead in wattage / efficiency, while the VERTEX GX-1200 wins on warranty. Overall, the HX1500i (2023) scores 91 and the VERTEX GX-1200 scores 84.5 on our Mars Score.
Which should you buy?
The HX1500i (2023) edges ahead on the Mars Score (91 vs 84.5), but the 6.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the HX1500i (2023) if you care most about wattage / efficiency. The biggest gaps in its favor are wattage, efficiency. The single most decisive one: Wattage — 25.00% more. 1500 W vs 1200 W.
Pick the VERTEX GX-1200 if you care most about warranty. Its strongest claims are warranty. The single most decisive one: Warranty — 2.00 yrs more. 12 vs 10.
Both ship with comparable modular, atx 3.0 / 12vhpwr, so those specs do not separate the two — focus on the differences below.
Bottom line: the HX1500i (2023) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Corsair - HX1500i (2023) or Seasonic - VERTEX GX-1200?
Corsair - HX1500i (2023) leads the current Mars Score by 6.5 points.The more useful decision is the trade-off behind that result: compare wattage, efficiency against the way you will actually use the product.
Choose Corsair - HX1500i (2023) if…
Corsair - HX1500i (2023) has the measurable edge on wattage w, efficiency.
Choose Seasonic - VERTEX GX-1200 if…
Seasonic - VERTEX GX-1200 has the measurable edge on warranty years.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Corsair - HX1500i (2023) 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 | Corsair - HX1500i (2023) | Seasonic - VERTEX GX-1200 |
|---|---|---|
| Wattage | 1500 Wlead | 1200 W |
| Efficiency | 80+ Platinumlead | 80+ Gold |
| Form factor | ATX | ATX |
Features
| Spec | Corsair - HX1500i (2023) | Seasonic - VERTEX GX-1200 |
|---|---|---|
| Modular | full | full |
| ATX 3.0 / 12VHPWR | true | true |
| Warranty | 10 yrs | 12 yrslead |