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Gaming PC · Ofgem 1 July to 30 September 2026

Budget PC (GTX 1660 Super) electricity cost — Weekend marathon — 8 hours on two days

Weekend-warrior: 8-hour gaming sessions on Saturday and Sunday. A <strong>Budget PC (GTX 1660 Super)</strong> draws 245 W total (GPU 125 W + rest of system 120 W). Cost: £1.02/week at Ofgem cap 26.11p/kWh (1 July to 30 September 2026).

Budget PC (GTX 1660 Super) — Weekend marathon — 8 hours on two days: 0.245 kW × 8 h = 1.960 kWh = 51.2p/session. Weekly (2 sessions): £1.02. Monthly: £4.44. Annual: £53.22. Source: Nvidia / AMD / Intel — published TDP specifications for GPU and CPU components + Ofgem (OGL v3.0).

Per session
51.2p
Per week (2 sessions)
£1.02
Per month
£4.44
Per year
£53.22

Rig specification

Tier
budget
GPU
Nvidia GeForce GTX 1660 Super
GPU TDP
125 W
Rest of system
120 W
Total system
245 W
Sessions/week
2

Nvidia GTX 1660 Super TDP 125 W (published spec); rest of system ~120 W typical budget build

How the cost is worked out

  1. System power: 125 W (GPU) + 120 W (CPU + rest) = 245 W total.
  2. Per session: 245 W ÷ 1000 × 8 h = 1.960 kWh × 26.11p = 51.2p.
  3. Weekly: 51.2p × 2 sessions = £1.02.
  4. Monthly: £1.02 × 52 ÷ 12 = £4.44.
  5. Annual: £1.02 × 52 = £53.22.

Same scenario — other gaming rigs

Mid-range PC (RTX 3070): £1.46/wkHigh-end PC (RTX 4070): £1.48/wkUltra PC (RTX 4090): £2.82/wkAMD Ultra PC (RX 7900 XTX): £2.32/wk
See all 5 gaming rig costs

Track gaming PC running costs

Updated each time the Ofgem cap changes.

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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.