How Much Does It Cost to Run a Gaming PC? We Ran the Numbers

How We Calculated It

Our baseline is the U.S. Energy Information Administration's June 2026 residential average of 18.34 cents per kilowatt-hour, or $0.1834/kWh. It is a national average, not the price every household pays. Utility plans, taxes, tiers, fuel adjustments and location can put an actual bill substantially above or below it.

For the headline example, 400 W is 0.4 kW. Four hours uses 1.6 kWh. Multiplying 1.6 by $0.1834 gives $0.29344 per day; multiplying by 365 gives $107.1056, displayed as $107.11 per year. Calculations retain full precision before display rounding.

How Much Does Gaming Cost at Different Wattages?

At the same electricity rate, cost scales directly with watts and time. The table shows annual cost for each daily schedule, plus the cost of one gaming hour.

Moving from the 250 W scenario to 600 W at four hours per day raises the annual bill from $66.94 to $160.66. The hourly difference is only 6.419 cents, but it becomes $93.72 a year.

What Four Hours Every Day Costs

A 30-day month is useful for budgeting, while a 365-day year captures the annual total. These figures assume gaming every day.

Five Years Is Where Small Hourly Costs Add Up

Under constant assumptions, the 250 W scenario accumulates $334.71 over five years; 800 W reaches $1,071.06. Even the narrower 250 W-to-600 W comparison produces a $468.59 five-year difference. Electricity may be secondary to the purchase price, but it is not zero.

The projection assumes four gaming hours every day, unchanged average wall draw and an electricity price fixed at $0.1834/kWh. It excludes a monitor, future rate changes and hardware upgrades. It describes a consistent scenario, not a promise about a future utility bill.

Why Gaming PCs Vary So Much in Power

The GPU is often the largest load during gaming, but the game, frame-rate cap, resolution, CPU demand, component efficiency, cooling, peripherals and power settings all move wall draw. Two machines with similar parts can also consume different amounts in a menu, an esports title and a demanding ray-traced game.

Manufacturer GPU specifications show the range without telling us total PC draw. AMD lists 160 W typical board power for the Radeon RX 9060 XT 16 GB and 304 W for the RX 9070 XT. NVIDIA lists 250 W Total Graphics Power for the RTX 5070, 360 W for the RTX 5080 and 575 W for the RTX 5090. These are graphics-card figures, not measurements at the PC's wall plug. CPU, motherboard, memory, storage, fans and conversion losses remain outside them.

An 850 W PSU Does Not Mean Your PC Uses 850 W

A power supply's wattage rating describes output capacity. The computer draws what its components need at that moment, subject to conversion losses; installing an 850 W unit does not force an 850 W load. Intel's ATX power-supply design guidance treats rated output and system loading as distinct concepts.

NVIDIA's own specifications make the distinction visible. The RTX 5070 is listed at 250 W TGP with 650 W required system power; the RTX 5080 at 360 W TGP with 850 W required system power; and the RTX 5090 at 575 W TGP with 1,000 W required system power. A GPU's power is not the PC's power, and recommended PSU capacity is not actual draw. The recommendation accommodates the rest of the system and design headroom.

Where You Live Can Matter as Much as Your Hardware

A 400 W PC used four hours daily consumes 584 kWh per year everywhere. The price of that energy does not. Applying EIA's June 2026 average residential prices gives this spread:

The Hawaii result is nearly four times Louisiana's without changing the PC or play time. These are state averages, not the exact rate every resident pays; a current utility bill is the better input for a personal estimate.

Gaming PC vs. Xbox vs. PlayStation

Official console figures provide useful reference points, but they do not create a controlled head-to-head benchmark. Microsoft reports global average gaming power of 61 W for Xbox Series S and 122 W for Series X; it separately reports laboratory gameplay values around 74 W and 154 W. The table uses the global gaming averages.

Sony reports 215.7 W for the HD three-game average on a digital PS5 CFI-21. Its other CFI-21 figures are 217.19 W for UHD on the digital model, and 214.0 W HD or 213.25 W UHD with the disc drive attached.

Does Your Monitor Matter?

Yes, but there is no universal monitor wattage. Screen size, panel technology, brightness, refresh rate, HDR and model all matter. As hypothetical inputs, a 30 W display used four hours per day costs $8.03 annually, while a 60 W display costs $16.07.

If a 400 W PC and a hypothetical 60 W monitor draw those amounts together, the setup is 460 W. Four daily hours costs $123.17 per year, versus $107.11 for the PC-only scenario.

What About Leaving the PC Idle?

Idle time can quietly rival many gaming sessions. If a particular PC drew 80 W at the wall while idle for eight hours every day, it would use 233.6 kWh and cost $42.84 per year. This is a conditional example, not an asserted average idle draw.

A 400 W gaming load uses the same 233.6 kWh over 584 hours. At the same rate, the annual idle example therefore costs as much as about 584 hours of 400 W gaming. Sleep and shutdown behavior can matter when idle periods are long.

How to Measure Your Actual Setup

The strongest estimate starts with AC wall draw. GPU monitoring tools report useful component telemetry, but GPU power omits the CPU, motherboard, RAM, storage, fans, power-supply losses and other attached devices. It should not be entered as though it were whole-system draw.

An appropriate consumer wall power meter can measure the complete PC safely without electrical modifications. Observe several representative games and workloads rather than treating one instant as permanent. Then use a reasonable typical reading and the cents-per-kWh figure from your utility bill.

Run Your Own Numbers

Calculate the cost of your own setup →The full Device Electricity Cost Calculator supports more usage schedules and device scenarios.

Final Verdict

A gaming PC can cost only a few cents per gaming hour while still accumulating hundreds of dollars over a long ownership period. At the June 2026 U.S. residential average, the 400 W example is 7.336 cents per hour, $107.11 per year at four hours daily, and $535.53 over five years under constant assumptions.

The biggest levers are measurable: wall draw, gaming time, idle behavior, monitor consumption and the rate on the electricity bill. Replacing a PSU based only on its label tells you little; measuring the complete setup tells you much more.