Antminer S17+ vs Whatsminer M66S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S17+ | Specification | Whatsminer M66S |
|---|---|---|
| 73.0 TH/s | Hashrate | 298.0 TH/s |
| 2,920 W | Power Consumption | 5,518 W |
| 40.0 J/TH | Efficiency | 18.5 J/TH |
| 75 dB | Noise Level | 50 dB |
| 9.5 kg | Weight | 13.5 kg |
| 9,963 BTU/hr | BTU Output | 18,827 BTU/hr |
| 84/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S17+
Whatsminer M66S
Based on BTC price of $79,202 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Whatsminer M66S edges it: 3 of 5 factors go its way (efficiency, hashrate, noise level). Its biggest concrete edge: 308% more hashrate (73.0 vs 298.0 TH/s). The Antminer S17+ claws back ground on power consumption and home mining score. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the Antminer S17+ and Whatsminer M66S actually differ, with the gap quantified:
- Whatsminer M66S 308% more hashrate (73.0 vs 298.0 TH/s)
- Antminer S17+ 47% better power draw (2,920 vs 5,518 W)
- Whatsminer M66S 54% better efficiency (40.0 vs 18.5 J/TH)
- Whatsminer M66S 33% better noise (75.0 vs 50.0 dB)
- Antminer S17+ 30% better weight (9.5 vs 13.5 kg)
- Whatsminer M66S 89% more heat output (9,963 vs 18,827 BTU/hr)
- Antminer S17+ 91% more home mining score (84.0 vs 44.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Antminer S17+ | Metric | Whatsminer M66S |
|---|---|---|
| — | Upfront cost (MSRP) | $8,000 |
| -$4.26 | Daily net profit | -$2.04 |
| -$1,556 | Net after 1 year | -$8,746 |
| -$3,113 | Net after 2 years | -$9,491 |
| -$4,669 | Net after 3 years | -$10,237 |
| — | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S17+Score: 84/100. 75 dB noise level.
Best for Efficiency
Whatsminer M66S18.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S17+ or Whatsminer M66S more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Whatsminer M66S is more profitable at $-2.04/day compared to $-4.26/day for the Antminer S17+. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S17+ or the Whatsminer M66S better for noise-sensitive spaces?
The Whatsminer M66S is quieter at 50 dB compared to the Antminer S17+ at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S17+ vs Whatsminer M66S: which fits a residential setup better?
The Antminer S17+ scores 84/100 on our Home Mining Score (vs 44/100 for the Whatsminer M66S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Antminer S17+ and Whatsminer M66S on J/TH?
The Antminer S17+ runs at 40.0 J/TH while the Whatsminer M66S runs at 18.5 J/TH — a difference of 21.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 54% better efficiency (40.0 vs 18.5 J/TH).