Radeon RX 7900 GRE Power Consumption and Cost

260 W Total Graphics Power — about 221 W sustained in a real game, and 341 W from the wall with the rest of the machine. AMD suggests a 700 W supply. 16 GB VRAM, RX 7000, 2023.

Running a Radeon RX 7900 GRE

$126 a year in electricity

System draw: 341 W
Per month: $11
Card alone / yr: $69
Suggested PSU: 700 W

Gaming hours
Idle hours

Where the watts go

Power and running cost breakdown for a Radeon RX 7900 GRE
Item	Power	Per year	Cost / year
Gaming hours	341 W	497.9 kWh	$97
Idle hours	70 W	153.3 kWh	$30
Whole machine	—	651.2 kWh	$126
Radeon RX 7900 GRE alone	221 W	355.5 kWh	$69

What 260 W means for this card

At the 85% load these figures assume, a Radeon RX 7900 GRE draws about 221 W in a game, and a machine built around it about 341 W from the wall. At California's average electricity price that comes to $226 a year, of which the card itself accounts for $124.

Running cost by state

Radeon RX 7900 GRE running cost in every US state
State	Cents / kWh	Per month	Per year whole machine	Card alone
Nevada	13.11	$7	$85	$47
Nebraska	13.25	$7	$86	$47
Utah	13.37	$7	$87	$48
Louisiana	13.49	$7	$88	$48
Tennessee	14.07	$8	$92	$50
Arkansas	14.12	$8	$92	$50
North Dakota	14.12	$8	$92	$50
Kentucky	14.26	$8	$93	$51
Oklahoma	14.33	$8	$93	$51
Idaho	14.37	$8	$94	$51
North Carolina	14.74	$8	$96	$52
Mississippi	14.88	$8	$97	$53
Washington	14.91	$8	$97	$53
New Mexico	15.06	$8	$98	$54
Florida	15.10	$8	$98	$54
Montana	15.14	$8	$99	$54
Arizona	15.18	$8	$99	$54
Wyoming	15.24	$8	$99	$54
South Dakota	15.36	$8	$100	$55
West Virginia	15.45	$8	$101	$55
South Carolina	15.55	$8	$101	$55
Kansas	15.71	$9	$102	$56
Iowa	15.93	$9	$104	$57
Texas	15.94	$9	$104	$57
Missouri	16.22	$9	$106	$58
Oregon	16.32	$9	$106	$58
Georgia	16.36	$9	$107	$58
Alabama	16.40	$9	$107	$58
Colorado	17.13	$9	$112	$61
Virginia	17.22	$9	$112	$61
Indiana	17.51	$10	$114	$62
Minnesota	17.52	$10	$114	$62
Ohio	19.19	$10	$125	$68
Delaware	19.29	$10	$126	$69
Wisconsin	19.56	$11	$127	$70
Illinois	19.89	$11	$130	$71
Pennsylvania	21.73	$12	$142	$77
Maryland	21.84	$12	$142	$78
Michigan	22.99	$12	$150	$82
Connecticut	24.32	$13	$158	$86
District of Columbia	24.39	$13	$159	$87
Vermont	24.44	$13	$159	$87
New Jersey	24.95	$14	$162	$89
New Hampshire	27.01	$15	$176	$96
Alaska	28.21	$15	$184	$100
Rhode Island	29.23	$16	$190	$104
New York	29.49	$16	$192	$105
Maine	29.59	$16	$193	$105
Massachusetts	29.61	$16	$193	$105
California	34.74	$19	$226	$124
Hawaii	52.72	$29	$343	$187

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

The rest of the RX 7000 range

Other RX 7000 cards compared
Card	TGP	Suggested PSU	Per year US average	In California
Radeon RX 7900 XTX	355 W	800 W	$149	$267
Radeon RX 7900 XT	315 W	750 W	$140	$250
Radeon RX 7800 XT	263 W	700 W	$127	$228
Radeon RX 7700 XT	245 W	700 W	$123	$220
Radeon RX 7600	165 W	550 W	$104	$185

Building around the Radeon RX 7900 GRE

AMD suggests a 700 W power supply. With any of the 26 processors in the PSU calculator, a build with this card needs 700 W.

Frequently asked questions

How much power does the Radeon RX 7900 GRE use?

Its Total Graphics Power is 260 W, which is the limit rather than the average. At a realistic 85% sustained load a demanding game pulls around 221 W from the card, and roughly 341 W from the wall once the rest of the machine is counted. AMD recommends a 700 W power supply.

How much does it cost to run a Radeon RX 7900 GRE?

At the US average of 19.42 cents per kWh, 4 hours of gaming and 6 idle hours a day works out at about $226 a year for the whole machine in California, $85 in Nevada and $343 in Hawaii. The card's own share of that is roughly $124.

What power supply does a Radeon RX 7900 GRE need?

AMD recommends 700 W. The card plus a mainstream system peaks around 380 W, so that recommendation leaves about 320 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 Radeon RX 7900 GRE it takes 19.5 idle hours to cost as much as 4 hours of gaming, which a machine left on around the clock passes comfortably.

Power figures: AMD published Typical Board Power at launch. 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