TOP-800G
The TOPOWER TOP-800G is a 800W ATX power supply rated 80+ Gold, fully modular. We do not hold a measured noise grade for this unit, so treat noise as unknown rather than as bad. Full specs, quality score and current prices are below.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Quality score
How we score →A power supply has no performance benchmark: every 800W unit delivers 800W. This scores how well built and how liveable the TOP-800G is, out of 100, from six published factors.
Better always scores higher, but the steps are uneven on purpose: Bronze to Gold is worth 11 of the 25 efficiency points, Gold to Titanium only 6. A factor we hold no value for scores zero rather than being skipped, so a unit we know little about never outranks a fully specified one. That does mean a zero can mean either poor or unknown, which is what the confidence figure above is for. Physical size scores nothing: ATX is a fit decision, not a quality one.
Specifications
Output & Rating
- Continuous power
- 800 W
- Efficiency
- 80+ Gold
- Price per watt
- $0.258/W
Connectors
- Motherboard
- 24-pin
- CPU (EPS)
- —
- PCIe
- 4 (6+2)
- 12V-2x6 / 12VHPWR
- —
- SATA
- 8
- Molex (4-pin)
- 4
Physical
- Form factor
- ATX
- Modularity
- Fully modular
Electrical & Warranty
- Input voltage
- 100-240 V
- Part number
- TOP-800G
Compare the TOP-800G against every other unit on the power supply comparison table. Not sure how much wattage you need? The power supply guide works through the sizing.
Where to buy the TOP-800G
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Newegg | In stock | $206.08 |  |
The TOP-800G starts from $206.08 across 1 retailer, which works out at $0.258/W. Prices update daily from live stock.
What the TOP-800G can power
Compare all GPUs →The graphics cards this 800W unit meets the system requirement for, ranked fastest first at 1440p, with the margin left over. The resolution follows the wattage, because a unit this size is bought for a card that will be run at 1440p. Headroom is measured against the card maker’s own whole-system recommendation, so 0 W means it meets that recommendation exactly rather than falling short.
| Graphics card | Card draw | PSU advised | Headroom |
|---|---|---|---|
| GeForce RTX 4080 Super Nvidia | 320 W | 750 W | +50 W |
| Radeon RX 7900 XTX AMD | 355 W | 800 W | +0 W |
| GeForce RTX 5070 Ti Nvidia | 300 W | 750 W | +50 W |
| Radeon RX 9070 XT AMD | 304 W | 750 W | +50 W |
| GeForce RTX 4080 Nvidia | 320 W | 750 W | +50 W |
| GeForce RTX 4070 Ti Super Nvidia | 285 W | 700 W | +100 W |
| Radeon RX 7900 XT AMD | 300 W | 750 W | +50 W |
| Radeon RX 9070 AMD | 220 W | 650 W | +150 W |
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