Gaming PCs are among the most power-hungry devices in a household, with high-end systems drawing 400–700W under full gaming load. Combined with monitors, peripherals, and the long sessions typical of PC gaming, electricity costs can add up to a significant portion of your annual energy bill. Here's exactly what your gaming setup costs to run.
Quick Answer: Gaming PC Running Costs
Based on the UK average electricity rate of approximately 24.5p per kWh:
| Setup Type | Power Draw (Gaming) | Cost Per Hour | Annual Cost (3 hrs/day) |
|---|---|---|---|
| Budget gaming PC | 200 – 300W | 5p – 7p | £54 – £80 |
| Mid-range gaming PC | 350 – 500W | 9p – 12p | £94 – £134 |
| High-end gaming PC | 500 – 700W | 12p – 17p | £134 – £187 |
| Enthusiast/dual GPU | 700 – 1,000W | 17p – 25p | £187 – £268 |
These figures are for the PC tower only. Add monitor, speakers, and peripherals for the full picture (covered below).
Key takeaway: A mid-range gaming PC used for 3 hours daily costs approximately £94–£134 per year in electricity. Adding a monitor and peripherals brings the total to £110–£160. For heavy gamers (6+ hours daily), costs can exceed £250 per year.
Understanding Gaming PC Power Draw
Gaming PCs don't draw constant power — consumption varies dramatically based on what you're doing:
| Activity | Typical Power Draw (mid-range PC) | Cost Per Hour |
|---|---|---|
| Idle (desktop, no apps) | 60 – 100W | 1.5p – 2.5p |
| Web browsing / office work | 80 – 130W | 2p – 3p |
| Video streaming | 100 – 150W | 2.5p – 3.7p |
| Light gaming (indie/older titles) | 200 – 300W | 5p – 7p |
| Heavy gaming (AAA titles, max settings) | 350 – 550W | 9p – 13p |
| Stress test / benchmarking | 450 – 700W | 11p – 17p |
| Sleep mode | 2 – 5W | 0.05p – 0.1p |
The GPU (graphics card) is responsible for 50–70% of total system power during gaming. The CPU accounts for 15–30%, with the rest split between RAM, storage, fans, and the motherboard.
Power Draw by Component
Graphics Cards (GPU)
| GPU Tier | Example Cards | Gaming Power Draw |
|---|---|---|
| Budget | RTX 4060, RX 7600 | 100 – 150W |
| Mid-range | RTX 4070, RX 7800 XT | 180 – 250W |
| High-end | RTX 4080, RX 7900 XT | 270 – 350W |
| Enthusiast | RTX 4090 | 350 – 450W |
Processors (CPU)
| CPU Tier | Examples | Gaming Power Draw |
|---|---|---|
| Budget/efficient | i5-14400F, Ryzen 5 7600 | 45 – 75W |
| Mid-range | i7-14700K, Ryzen 7 7800X3D | 80 – 140W |
| High-end | i9-14900K, Ryzen 9 7950X | 120 – 250W |
Monitor Power Consumption
Don't forget your display — it adds to your total gaming setup cost:
| Monitor Type | Typical Wattage | Annual Cost (5 hrs/day) |
|---|---|---|
| 24" 1080p 60Hz | 20 – 30W | £9 – £13 |
| 27" 1440p 144Hz | 30 – 50W | £13 – £22 |
| 32" 4K 144Hz | 45 – 80W | £20 – £36 |
| 34" ultrawide | 50 – 90W | £22 – £40 |
| Dual monitor setup | 50 – 120W | £22 – £54 |
Gaming PC vs Console: Cost Comparison
| Device | Gaming Power Draw | Cost Per Hour | Annual (3 hrs/day) |
|---|---|---|---|
| Nintendo Switch (docked) | 40W | 1p | £11 |
| PS5 (gaming) | 100 – 200W | 2.5p – 5p | £27 – £54 |
| Xbox Series X (gaming) | 150 – 210W | 3.7p – 5.1p | £40 – £56 |
| Mid-range gaming PC | 350 – 500W | 9p – 12p | £94 – £134 |
| High-end gaming PC | 500 – 700W | 12p – 17p | £134 – £187 |
Consoles are significantly cheaper to run than gaming PCs. A PS5 costs roughly one-third of what a mid-range PC costs in electricity. However, this doesn't account for game prices, online subscription costs, or the multi-purpose nature of PCs.
The Hidden Cost: Sleep and Standby
Many gamers leave their PCs in sleep mode rather than shutting down completely. Over a year, this adds up:
- Sleep mode: 2–5W = £4–£11 per year (if in sleep 20 hours/day)
- Hibernate: 0.5–1W = £1–£2 per year
- Fully off (but plugged in): 1–3W = £2–£6 per year
- Left on idle overnight (8 hrs): 60–100W = £43–£71 per year
The biggest waste is leaving PCs idle (not in sleep) — if you forget to put your PC to sleep overnight for 8 hours daily, it costs an extra £43–£71 per year doing nothing.
Tips to Reduce Gaming PC Electricity Costs
- Enable power management — set your PC to sleep after 15–30 minutes of inactivity. This saves £40+ per year vs leaving it idle.
- Cap your frame rate — running games at uncapped FPS makes the GPU work harder than necessary. Cap at your monitor's refresh rate (e.g., 144fps) or lower for older titles.
- Undervolt your GPU — reducing GPU voltage by 50–100mV can cut power consumption by 10–20% with minimal performance loss. Many cards maintain 95%+ performance at lower voltages.
- Use balanced power plans — Windows "High Performance" mode keeps components at full power even when idle. Use "Balanced" instead.
- Turn off RGB lighting — while individually small (1–5W per component), multiple RGB fans, strips, and RAM can add 10–20W total.
- Shut down when not in use — sleep mode is fine, but a full shutdown is even better. Modern PCs boot from SSD in 10–15 seconds.
- Switch off at the wall — a PSU continues drawing 1–3W even when the PC is off. Use a switch on the wall socket or a smart plug.
- Consider efficiency when upgrading — newer GPU generations typically offer better performance per watt. An RTX 4070 provides similar gaming performance to an RTX 3080 at half the power draw.
Calculate Your Exact Gaming Costs
Use our free energy cost calculator to calculate your gaming PC's running cost. If you're not sure of your system's power draw, check your PSU's rated wattage (actual draw is typically 40–70% of PSU capacity during gaming) or use monitoring software like HWiNFO to measure real-time consumption.