How many watts does Gainward Phantom GeForce RTX 3070 use?
Short answer
Gainward Phantom GeForce RTX 3070 draws up to 220 W under gaming load — that is its rated TDP; short spikes can reach about 308 W. A build with a mid-range CPU needs a 550 W power supply or more. At 3 h of gaming a day the card uses ≈19.8 kWh a month (≈$ 3.37).
| TDP (rated, gaming) | 220 W |
|---|---|
| Graphics card spikes (estimate) | up to 308 W |
| PSU with a mid-range CPU (105 W) | 550 W |
| FPS per watt (1440p, High) | 0.76 FPS/W |
| Electricity per month (3 h/day) | $ 3.37 (19.8 kWh) |
Looking for something else? What PSU Gainward Phantom GeForce RTX 3070 needs · How much gaming electricity costs
What Gainward Phantom GeForce RTX 3070 costs to run per month
Graphics card only, per month:
$ 3.37
19.8 kWh
Calculation: 220 W (TDP under gaming load) × hours × 30 days × rate. Default rate is $ 0.17 per kWh; replace it with yours.
Power use and efficiency of Gainward Phantom GeForce RTX 3070 alternatives
| Graphics card | TDP | Difference | FPS (1440p) | FPS/W | PSU (mid-range CPU) | |
|---|---|---|---|---|---|---|
| Gainward Phantom GeForce RTX 3070 | 220 W | — | 167 | 0.76 | 550 W | |
| GeForce RTX 4060 Ti | 160 W | -60 W | 172 | 1.08 | 500 W | Compare → |
| GeForce RTX 4060 Ti 16GB | 165 W | -55 W | 172 | 1.04 | 500 W | Compare → |
| GeForce RTX 3070 | 220 W | 0 W | 163 | 0.74 | 550 W | Compare → |
| Radeon RX 9060 XT | 160 W | -60 W | 172 | 1.08 | 500 W | Compare → |
| NVIDIA RTX 4000 Ada | 204 W | -16 W | 180 | 0.88 | 550 W | Compare → |
FPS is the average across 8 popular games at 1440p High from the unified FPSHQ model (real measurements where available); FPS/W = FPS / TDP. How FPS is calculated
Key figures
Unique FPSHQ metrics from this page's data
220 W
TDP (rated, gaming)
up to 308 W
Graphics card spikes (estimate)
550 W
PSU with a mid-range CPU (105 W)
0.76 FPS/W
FPS per watt (1440p, High)
$ 3.37 (19.8 kWh)
Electricity per month (3 h/day)
In short
How many watts does Gainward Phantom GeForce RTX 3070 use?
In games — up to 220 W (rated TDP). Short spikes under load can reach ~308 W, which matters when choosing a power supply.
- TDP (rated, gaming)
- 220 W
- Graphics card spikes (estimate)
- up to 308 W
- PSU with a mid-range CPU (105 W)
- 550 W
- FPS per watt (1440p, High)
- 0.76 FPS/W
Frequently asked questions
How many watts does Gainward Phantom GeForce RTX 3070 use?
In games — up to 220 W (rated TDP). Short spikes under load can reach ~308 W, which matters when choosing a power supply.
How much power does Gainward Phantom GeForce RTX 3070 use at idle?
Our database has no separate idle measurement for Gainward Phantom GeForce RTX 3070. At idle and during video playback graphics cards use only a small fraction of their TDP (220 W), so your electricity bill mostly depends on gaming hours.
How much does electricity for Gainward Phantom GeForce RTX 3070 cost per month?
At 3 hours of gaming a day and a rate of $ 0.17 per kWh — about $ 3.37 a month for the graphics card alone (19.8 kWh). Recalculate for your hours and rate with the calculator on this page.
How many watts PSU does Gainward Phantom GeForce RTX 3070 need?
From 550 W for a build with a mid-range CPU: card TDP 220 W, short spikes up to ~308 W, plus the rest of the system and 30% headroom.
Which is more efficient: Gainward Phantom GeForce RTX 3070 or GeForce RTX 4060 Ti?
By spec Gainward Phantom GeForce RTX 3070 draws 220 W and GeForce RTX 4060 Ti draws 160 W. Efficiency by the unified FPSHQ model: 0.76 vs 1.08 FPS per watt (1440p, High, popular games).
⚡ What PSU for Gainward Phantom GeForce RTX 3070
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