Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Corsair - HX1500i (2023) | EVGA - SuperNOVA 1000 G7 |
|---|---|---|
| Wattage | 1500 W | 1000 W |
| ATX 3.0 / 12VHPWR | true | false |
| Efficiency | 80+ Platinum | 80+ Gold |
Between the HX1500i (2023) and SuperNOVA 1000 G7, the HX1500i (2023) comes out ahead in wattage / atx 3.0 / 12vhpwr, while the SuperNOVA 1000 G7 wins on several specs. Overall, the HX1500i (2023) scores 91 and the SuperNOVA 1000 G7 scores 82.1 on our Mars Score.
Which should you buy?
The HX1500i (2023) is the clear pick on raw spec strength, leading by 8.9 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 HX1500i (2023) if you care most about wattage / atx 3.0 / 12vhpwr. The biggest gaps in its favor are wattage, atx 3.0 / 12vhpwr, efficiency. The single most decisive one: Wattage — 50.00% more. 1500 W vs 1000 W.
The SuperNOVA 1000 G7 similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable modular, warranty, 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 EVGA - SuperNOVA 1000 G7?
Corsair - HX1500i (2023) leads the current Mars Score by 8.9 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, has atx 3, efficiency.
Choose EVGA - SuperNOVA 1000 G7 if…
EVGA - SuperNOVA 1000 G7 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
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 — 50.00% more. 1500 W vs 1000 W.
- ▲Has ATX 3.0 / 12VHPWR.
- ▲Efficiency: 80+ Platinum (vs 80+ Gold).
Why EVGA - SuperNOVA 1000 G7 wins
- No decisive advantages.
Spec comparison
Spec
| Spec | Corsair - HX1500i (2023) | EVGA - SuperNOVA 1000 G7 |
|---|---|---|
| Wattage | 1500 Wlead | 1000 W |
| Efficiency | 80+ Platinumlead | 80+ Gold |
| Form factor | ATX | ATX |
Features
| Spec | Corsair - HX1500i (2023) | EVGA - SuperNOVA 1000 G7 |
|---|---|---|
| Modular | full | full |
| Average noise (Cybenetics) | 27.55 dB(A)lead | 33.19 dB(A) |
| ATX 3.0 / 12VHPWR | truelead | false |
| Warranty | 10 yrs | 10 yrs |