High-end PC (RTX 4070) electricity cost — Daily — 4 hours every day
Daily gaming at 4 hours a session — every day of the week. A <strong>High-end PC (RTX 4070)</strong> draws 355 W total (GPU 200 W + rest of system 155 W). Cost: £2.60/week at Ofgem cap 26.11p/kWh (1 July to 30 September 2026).
High-end PC (RTX 4070) — Daily — 4 hours every day: 0.355 kW × 4 h = 1.420 kWh = 37.1p/session. Weekly (7 sessions): £2.60. Monthly: £11.25. Annual: £134.96. Source: Nvidia / AMD / Intel — published TDP specifications for GPU and CPU components + Ofgem (OGL v3.0).
- Per session
- 37.1p
- Per week (7 sessions)
- £2.60
- Per month
- £11.25
- Per year
- £134.96
Rig specification
- Tier
- high-end
- GPU
- Nvidia GeForce RTX 4070
- GPU TDP
- 200 W
- Rest of system
- 155 W
- Total system
- 355 W
- Sessions/week
- 7
Nvidia RTX 4070 TDP 200 W (published spec); rest of system ~155 W high-end build
How the cost is worked out
- System power: 200 W (GPU) + 155 W (CPU + rest) = 355 W total.
- Per session: 355 W ÷ 1000 × 4 h = 1.420 kWh × 26.11p = 37.1p.
- Weekly: 37.1p × 7 sessions = £2.60.
- Monthly: £2.60 × 52 ÷ 12 = £11.25.
- Annual: £2.60 × 52 = £134.96.
Same scenario — other gaming rigs
Track gaming PC running costs
Updated each time the Ofgem cap changes.
No spam. Unsubscribe anytime. A Gera Services product.
GPU TDP from Nvidia / AMD / Intel — published TDP specifications for GPU and CPU components. Unit rate 26.11p/kWh from Ofgem — Energy price cap unit rates and standing charges (1 July to 30 September 2026), OGL v3.0. Last updated: 2026-06-20.