Hardware
Which GPU is most energy-efficient?
GPU efficiency varies by algorithm. See MH/W rankings for ETC (Etchash) and learn why efficiency matters more at higher electricity costs.
Efficiency varies by algorithm. Here's the breakdown for ETC (Etchash):
| GPU | Hashrate | Power | Efficiency (MH/W) | Price |
|---|---|---|---|---|
| RTX 5080 | 120 MH/s | 200W | 0.600 | £999 |
| RTX 5070 Ti | 88 MH/s | 150W | 0.587 | £879 |
| RX 9070 XT | 100 MH/s | 180W | 0.556 | £760 |
| RTX 5090 | 160 MH/s | 290W | 0.552 | £2800 |
The RTX 5080 leads on efficiency for ETC at 0.600 MH/W. But efficiency alone doesn't determine the optimal choice — the algorithm also considers total hashrate and budget constraints.
💡 At expensive electricity (£0.10+/kWh), the most efficient GPU saves you more in energy than the extra hashrate from a faster but less efficient card is worth.