Skip to main content
Gaming PC · Ofgem 1 July to 30 September 2026

Mid-range PC (RTX 3070) electricity cost — Enthusiast — 3 hours per session

Enthusiast player: 3 hours per session, 5 sessions a week. A <strong>Mid-range PC (RTX 3070)</strong> draws 350 W total (GPU 220 W + rest of system 130 W). Cost: £1.37/week at Ofgem cap 26.11p/kWh (1 July to 30 September 2026).

Mid-range PC (RTX 3070) — Enthusiast — 3 hours per session: 0.350 kW × 3 h = 1.050 kWh = 27.4p/session. Weekly (5 sessions): £1.37. Monthly: £5.94. Annual: £71.28. Source: Nvidia / AMD / Intel — published TDP specifications for GPU and CPU components + Ofgem (OGL v3.0).

Per session
27.4p
Per week (5 sessions)
£1.37
Per month
£5.94
Per year
£71.28

Rig specification

Tier
mid-range
GPU
Nvidia GeForce RTX 3070
GPU TDP
220 W
Rest of system
130 W
Total system
350 W
Sessions/week
5

Nvidia RTX 3070 TDP 220 W (published spec); rest of system ~130 W mid-range build

How the cost is worked out

  1. System power: 220 W (GPU) + 130 W (CPU + rest) = 350 W total.
  2. Per session: 350 W ÷ 1000 × 3 h = 1.050 kWh × 26.11p = 27.4p.
  3. Weekly: 27.4p × 5 sessions = £1.37.
  4. Monthly: £1.37 × 52 ÷ 12 = £5.94.
  5. Annual: £1.37 × 52 = £71.28.

Same scenario — other gaming rigs

Budget PC (GTX 1660 Super): 96.0p/wkHigh-end PC (RTX 4070): £1.39/wkUltra PC (RTX 4090): £2.64/wkAMD Ultra PC (RX 7900 XTX): £2.17/wk
See all 5 gaming rig costs

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.