Bitmain Antminer S9k (13.5Th) vs Whatsminer M50S++
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S9k (13.5Th) | Specification | Whatsminer M50S++ |
|---|---|---|
| 13.5 TH/s | Hashrate | 160.0 TH/s |
| 1,310 W | Power Consumption | 3,520 W |
| 97.0 J/TH | Efficiency | 22.0 J/TH |
| — | Noise Level | 75 dB |
| 4,200.0 kg | Weight | 13.5 kg |
| 4,470 BTU/hr | BTU Output | 12,010 BTU/hr |
| 31/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S9k (13.5Th)
Whatsminer M50S++
Based on BTC price of $79,088 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Whatsminer M50S++ comes out ahead — it takes 4 of 6 (efficiency, hashrate, noise level, price-performance). Where it pulls away hardest is 1085% more hashrate (13.5 vs 160.0 TH/s). The Bitmain Antminer S9k (13.5Th) 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
The Bitmain Antminer S9k (13.5Th) and Whatsminer M50S++ diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Whatsminer M50S++ 1085% more hashrate (13.5 vs 160.0 TH/s)
- Bitmain Antminer S9k (13.5Th) 63% better power draw (1,310 vs 3,520 W)
- Whatsminer M50S++ 77% better efficiency (97.0 vs 22.0 J/TH)
- Whatsminer M50S++ 100% better weight (4,200.0 vs 13.5 kg)
- Whatsminer M50S++ 169% more heat output (4,470 vs 12,010 BTU/hr)
- Bitmain Antminer S9k (13.5Th) 3% more home mining score (31.0 vs 30.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S9k (13.5Th) | Metric | Whatsminer M50S++ |
|---|---|---|
| $600 | Upfront cost (MSRP) | $4,000 |
| -$2.65 | Daily net profit | -$2.62 |
| -$1,568 | Net after 1 year | -$4,958 |
| -$2,536 | Net after 2 years | -$5,916 |
| -$3,505 | Net after 3 years | -$6,874 |
| Does not pay back at current rates (negative daily profit) | 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
Bitmain Antminer S9k (13.5Th)Score: 31/100. 0 dB noise level.
Best for Efficiency
Whatsminer M50S++22.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S9k (13.5Th) or Whatsminer M50S++ more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Whatsminer M50S++ is more profitable at $-2.62/day compared to $-2.65/day for the Bitmain Antminer S9k (13.5Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S9k (13.5Th) or Whatsminer M50S++?
The Whatsminer M50S++ is quieter at 75 dB compared to the Bitmain Antminer S9k (13.5Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S9k (13.5Th) or Whatsminer M50S++?
The Bitmain Antminer S9k (13.5Th) scores 31/100 on our Home Mining Score (vs 30/100 for the Whatsminer M50S++). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S9k (13.5Th) and Whatsminer M50S++ on J/TH?
The Bitmain Antminer S9k (13.5Th) runs at 97.0 J/TH while the Whatsminer M50S++ runs at 22.0 J/TH — a difference of 75.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 77% better efficiency (97.0 vs 22.0 J/TH).