GeForce RTX 3080 Ti Power Consumption and Cost

350 W Total Graphics Power — about 298 W sustained in a real game, and 418 W from the wall with the rest of the machine. NVIDIA suggests a 750 W supply. 12 GB VRAM, RTX 30, 2021.

Running a GeForce RTX 3080 Ti

$148 a year in electricity

System draw: 418 W
Per month: $12
Card alone / yr: $91
Suggested PSU: 750 W

Gaming hours
Idle hours

Where the watts go

Power and running cost breakdown for a GeForce RTX 3080 Ti
Item	Power	Per year	Cost / year
Gaming hours	418 W	609.5 kWh	$118
Idle hours	70 W	153.3 kWh	$30
Whole machine	—	762.8 kWh	$148
GeForce RTX 3080 Ti alone	298 W	467.2 kWh	$91

What 350 W means for this card

At the 85% load these figures assume, a GeForce RTX 3080 Ti draws about 298 W in a game, and a machine built around it about 418 W from the wall. At California's average electricity price that comes to $265 a year, of which the card itself accounts for $162.

What stands out about the GeForce RTX 3080 Ti

Less memory than the closest AMD card by rated power.
The RX 7900 XTX is rated at 355 W to this card's 350 W, but carries 24 GB of graphics memory against the RTX 3080 Ti's 12 GB.
Some builds need more than the 750 W supply NVIDIA suggests.
Paired with the Core i9-14900K, the whole build calls for 850 W; 10 of the 26 processors in the RTX 3080 Ti PSU table take the requirement above 750 W.

Running cost by state

GeForce RTX 3080 Ti running cost in every US state
State	Cents / kWh	Per month	Per year whole machine	Card alone
Nevada	13.11	$8	$100	$61
Nebraska	13.25	$8	$101	$62
Utah	13.37	$9	$102	$62
Louisiana	13.49	$9	$103	$63
Tennessee	14.07	$9	$107	$66
Arkansas	14.12	$9	$108	$66
North Dakota	14.12	$9	$108	$66
Kentucky	14.26	$9	$109	$67
Oklahoma	14.33	$9	$109	$67
Idaho	14.37	$9	$110	$67
North Carolina	14.74	$9	$112	$69
Mississippi	14.88	$9	$114	$70
Washington	14.91	$9	$114	$70
New Mexico	15.06	$10	$115	$70
Florida	15.10	$10	$115	$71
Montana	15.14	$10	$116	$71
Arizona	15.18	$10	$116	$71
Wyoming	15.24	$10	$116	$71
South Dakota	15.36	$10	$117	$72
West Virginia	15.45	$10	$118	$72
South Carolina	15.55	$10	$119	$73
Kansas	15.71	$10	$120	$73
Iowa	15.93	$10	$122	$74
Texas	15.94	$10	$122	$74
Missouri	16.22	$10	$124	$76
Oregon	16.32	$10	$125	$76
Georgia	16.36	$10	$125	$76
Alabama	16.40	$10	$125	$77
Colorado	17.13	$11	$131	$80
Virginia	17.22	$11	$131	$80
Indiana	17.51	$11	$134	$82
Minnesota	17.52	$11	$134	$82
Ohio	19.19	$12	$146	$90
Delaware	19.29	$12	$147	$90
Wisconsin	19.56	$12	$149	$91
Illinois	19.89	$13	$152	$93
Pennsylvania	21.73	$14	$166	$102
Maryland	21.84	$14	$167	$102
Michigan	22.99	$15	$175	$107
Connecticut	24.32	$15	$186	$114
District of Columbia	24.39	$16	$186	$114
Vermont	24.44	$16	$186	$114
New Jersey	24.95	$16	$190	$117
New Hampshire	27.01	$17	$206	$126
Alaska	28.21	$18	$215	$132
Rhode Island	29.23	$19	$223	$137
New York	29.49	$19	$225	$138
Maine	29.59	$19	$226	$138
Massachusetts	29.61	$19	$226	$138
California	34.74	$22	$265	$162
Hawaii	52.72	$34	$402	$246

4 h gaming and 6 h idle a day, at 85% load with 120 W of system overhead.

The rest of the RTX 30 range

Other RTX 30 cards compared
Card	TGP	Suggested PSU	Per year US average	In California
GeForce RTX 3090 Ti	450 W	850 W	$172	$308
GeForce RTX 3090	350 W	750 W	$148	$265
GeForce RTX 3080	350 W	750 W	$148	$265
GeForce RTX 3070 Ti	290 W	650 W	$134	$239
GeForce RTX 3070	220 W	650 W	$117	$209
GeForce RTX 3060 Ti	200 W	600 W	$112	$200
GeForce RTX 3060	170 W	550 W	$105	$187
GeForce RTX 3050	130 W	550 W	$95	$170

Building around the GeForce RTX 3080 Ti

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 850 W with the Core i9-14900K.

Frequently asked questions

How much power does the GeForce RTX 3080 Ti use?

Its Total Graphics Power is 350 W, which is the limit rather than the average. At a realistic 85% sustained load a demanding game pulls around 298 W from the card, and roughly 418 W from the wall once the rest of the machine is counted. NVIDIA recommends a 750 W power supply.

How much does it cost to run a GeForce RTX 3080 Ti?

At the US average of 19.42 cents per kWh, 4 hours of gaming and 6 idle hours a day works out at about $265 a year for the whole machine in California, $100 in Nevada and $402 in Hawaii. The card's own share of that is roughly $162.

What power supply does a GeForce RTX 3080 Ti need?

NVIDIA recommends 750 W. The card plus a mainstream system peaks around 470 W, so that recommendation leaves about 280 W of headroom — deliberate, because transient spikes on modern cards briefly exceed the rated limit.

Do idle hours matter?

More than most people expect. A PC left on but not gaming still draws roughly 70 W whatever card is installed, so the idle bill is flat while the gaming one is not. Over 6 hours a day that is $53 a year in California. On a GeForce RTX 3080 Ti it takes 23.9 idle hours to cost as much as 4 hours of gaming — more than fits in a day, so on this card gaming always dominates.

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 26 August 2026. How these figures are calculated