Bitmain Antminer S19j Pro (100Th) vs MicroBT Whatsminer M61
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S19j Pro (100Th) | Specification | MicroBT Whatsminer M61 |
|---|---|---|
| 100.0 TH/s | Hashrate | 200.0 TH/s |
| 3,050 W | Power Consumption | 3,980 W |
| 30.5 J/TH | Efficiency | 19.9 J/TH |
| — | Noise Level | 75 dB |
| 13,200.0 kg | Weight | 13.5 kg |
| 10,407 BTU/hr | BTU Output | 13,580 BTU/hr |
| 22/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S19j Pro (100Th)
MicroBT Whatsminer M61
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the MicroBT Whatsminer M61 comes out ahead — it takes 4 of 6 (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 100% more hashrate (100 vs 200 TH/s). The Bitmain Antminer S19j Pro (100Th) holds the edge in power consumption and price-performance. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Bitmain Antminer S19j Pro (100Th) and MicroBT Whatsminer M61 actually differ, with the gap quantified:
- MicroBT Whatsminer M61 100% more hashrate (100 vs 200 TH/s)
- Bitmain Antminer S19j Pro (100Th) 23% better power draw (3,050 vs 3,980 W)
- MicroBT Whatsminer M61 35% better efficiency (30.5 vs 19.9 J/TH)
- MicroBT Whatsminer M61 100% better weight (13,200.0 vs 13.5 kg)
- MicroBT Whatsminer M61 30% more heat output (10,407 vs 13,580 BTU/hr)
- MicroBT Whatsminer M61 36% more home mining score (22.0 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 S19j Pro (100Th) | Metric | MicroBT Whatsminer M61 |
|---|---|---|
| $600 | Upfront cost (MSRP) | $2,200 |
| -$3.68 | Daily net profit | -$2.28 |
| -$1,944 | Net after 1 year | -$3,031 |
| -$3,288 | Net after 2 years | -$3,862 |
| -$4,632 | Net after 3 years | -$4,693 |
| 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
MicroBT Whatsminer M61Score: 30/100. 75 dB noise level.
Best for Efficiency
MicroBT Whatsminer M6119.9 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S19j Pro (100Th) or the MicroBT Whatsminer M61?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT Whatsminer M61 is more profitable at $-2.28/day compared to $-3.68/day for the Bitmain Antminer S19j Pro (100Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S19j Pro (100Th) vs MicroBT Whatsminer M61: which runs at a lower noise level?
The MicroBT Whatsminer M61 is quieter at 75 dB compared to the Bitmain Antminer S19j Pro (100Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S19j Pro (100Th) vs MicroBT Whatsminer M61: which fits a residential setup better?
The MicroBT Whatsminer M61 scores 30/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer S19j Pro (100Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S19j Pro (100Th) vs MicroBT Whatsminer M61: how much does the efficiency gap matter?
The Bitmain Antminer S19j Pro (100Th) runs at 30.5 J/TH while the MicroBT Whatsminer M61 runs at 19.9 J/TH — a difference of 10.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 35% better efficiency (30.5 vs 19.9 J/TH).