GeForce RTX 4080 SUPER Power Consumption and Cost
320 W Total Graphics Power — about 272 W sustained in a real game, and 392 W from the wall with the rest of the machine. NVIDIA suggests a 750 W supply. 16 GB VRAM, RTX 40, 2024.
Running a GeForce RTX 4080 SUPER
- System draw
- 392 W
- Per month
- $12
- Card alone / yr
- $84
- Suggested PSU
- 750 W
- Gaming hours
- Idle hours
Where the watts go
| Item | Power | Per year | Cost / year |
|---|---|---|---|
| Gaming hours | 392 W | 572.3 kWh | $111 |
| Idle hours | 70 W | 153.3 kWh | $30 |
| Whole machine | — | 725.6 kWh | $141 |
| GeForce RTX 4080 SUPER alone | 272 W | 430.0 kWh | $84 |
What 320 W means for this card
At the 85% load these figures assume, a GeForce RTX 4080 SUPER draws about 272 W in a game, and a machine built around it about 392 W from the wall. At California's average electricity price that comes to $252 a year, of which the card itself accounts for $149.
What stands out about the GeForce RTX 4080 SUPER
Less memory than the closest AMD card by rated power.
The RX 7900 XT is rated at 315 W to this card's 320 W, but carries 20 GB of graphics memory against the RTX 4080 SUPER's 16 GB.
Room for 11 of the 20 open models in the local-LLM dataset.
With Q4_K_M weights and an 8K context, its 16 GB holds models up to Qwen2.5 14B. The local-LLM page for the RTX 4080 SUPER covers every model at every quantisation and context length.
Some builds need more than the 750 W supply NVIDIA suggests.
Paired with the Core i9-14900K, the whole build calls for 800 W; 6 of the 26 processors in the RTX 4080 SUPER PSU table take the requirement above 750 W.
Running cost by state
| State | Cents / kWh | Per month | Per year whole machine | Card alone |
|---|---|---|---|---|
| Nevada | 13.11 | $8 | $95 | $56 |
| Nebraska | 13.25 | $8 | $96 | $57 |
| Utah | 13.37 | $8 | $97 | $57 |
| Louisiana | 13.49 | $8 | $98 | $58 |
| Tennessee | 14.07 | $9 | $102 | $61 |
| Arkansas | 14.12 | $9 | $102 | $61 |
| North Dakota | 14.12 | $9 | $102 | $61 |
| Kentucky | 14.26 | $9 | $103 | $61 |
| Oklahoma | 14.33 | $9 | $104 | $62 |
| Idaho | 14.37 | $9 | $104 | $62 |
| North Carolina | 14.74 | $9 | $107 | $63 |
| Mississippi | 14.88 | $9 | $108 | $64 |
| Washington | 14.91 | $9 | $108 | $64 |
| New Mexico | 15.06 | $9 | $109 | $65 |
| Florida | 15.10 | $9 | $110 | $65 |
| Montana | 15.14 | $9 | $110 | $65 |
| Arizona | 15.18 | $9 | $110 | $65 |
| Wyoming | 15.24 | $9 | $111 | $66 |
| South Dakota | 15.36 | $9 | $111 | $66 |
| West Virginia | 15.45 | $9 | $112 | $66 |
| South Carolina | 15.55 | $9 | $113 | $67 |
| Kansas | 15.71 | $10 | $114 | $68 |
| Iowa | 15.93 | $10 | $116 | $68 |
| Texas | 15.94 | $10 | $116 | $69 |
| Missouri | 16.22 | $10 | $118 | $70 |
| Oregon | 16.32 | $10 | $118 | $70 |
| Georgia | 16.36 | $10 | $119 | $70 |
| Alabama | 16.40 | $10 | $119 | $71 |
| Colorado | 17.13 | $10 | $124 | $74 |
| Virginia | 17.22 | $10 | $125 | $74 |
| Indiana | 17.51 | $11 | $127 | $75 |
| Minnesota | 17.52 | $11 | $127 | $75 |
| Ohio | 19.19 | $12 | $139 | $83 |
| Delaware | 19.29 | $12 | $140 | $83 |
| Wisconsin | 19.56 | $12 | $142 | $84 |
| Illinois | 19.89 | $12 | $144 | $86 |
| Pennsylvania | 21.73 | $13 | $158 | $93 |
| Maryland | 21.84 | $13 | $158 | $94 |
| Michigan | 22.99 | $14 | $167 | $99 |
| Connecticut | 24.32 | $15 | $176 | $105 |
| District of Columbia | 24.39 | $15 | $177 | $105 |
| Vermont | 24.44 | $15 | $177 | $105 |
| New Jersey | 24.95 | $15 | $181 | $107 |
| New Hampshire | 27.01 | $16 | $196 | $116 |
| Alaska | 28.21 | $17 | $205 | $121 |
| Rhode Island | 29.23 | $18 | $212 | $126 |
| New York | 29.49 | $18 | $214 | $127 |
| Maine | 29.59 | $18 | $215 | $127 |
| Massachusetts | 29.61 | $18 | $215 | $127 |
| California | 34.74 | $21 | $252 | $149 |
| Hawaii | 52.72 | $32 | $383 | $227 |
4 h gaming and 6 h idle a day, at 85% load with 120 W of system overhead.
The rest of the RTX 40 range
| Card | TGP | Suggested PSU | Per year US average | In California |
|---|---|---|---|---|
| GeForce RTX 4090 | 450 W | 850 W | $172 | $308 |
| GeForce RTX 4080 | 320 W | 750 W | $141 | $252 |
| GeForce RTX 4070 Ti SUPER | 285 W | 700 W | $133 | $237 |
| GeForce RTX 4070 Ti | 285 W | 700 W | $133 | $237 |
| GeForce RTX 4070 SUPER | 220 W | 650 W | $117 | $209 |
| GeForce RTX 4070 | 200 W | 650 W | $112 | $200 |
| GeForce RTX 4060 Ti | 165 W | 550 W | $104 | $185 |
| GeForce RTX 4060 | 115 W | 550 W | $92 | $164 |
Building around the GeForce RTX 4080 SUPER
NVIDIA suggests a 750 W power supply. Across the 26 processors in the PSU calculator, a build with this card needs 750 W with the Ryzen 5 9600X and up to 800 W with the Core i9-14900K.
Frequently asked questions
How much power does the GeForce RTX 4080 SUPER use?
How much does it cost to run a GeForce RTX 4080 SUPER?
What power supply does a GeForce RTX 4080 SUPER need?
Do idle hours matter?
Power figures: nvidia.com GeForce specifications (Total Graphics Power). Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026.
Estimates for informational purposes only. Total Graphics Power is a power limit, not an average: real draw depends on the game, resolution, frame cap, board partner design and any factory overclock. Electricity prices are state residential averages and your tariff will differ.
Data on this page last verified . How these figures are calculated