Bitmain Antminer R4 vs Bitmain Antminer S19j Pro (100Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer R4 | Specification | Bitmain Antminer S19j Pro (100Th) |
|---|---|---|
| 8.7 TH/s | Hashrate | 100.0 TH/s |
| 845 W | Power Consumption | 3,050 W |
| 97.1 J/TH | Efficiency | 30.5 J/TH |
| — | Noise Level | — |
| 2,500.0 kg | Weight | 13,200.0 kg |
| 2,883 BTU/hr | BTU Output | 10,407 BTU/hr |
| 28/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer R4
Bitmain Antminer S19j Pro (100Th)
Based on BTC price of $79,230 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S19j Pro (100Th) edges it: 2 of 4 factors go its way (efficiency, hashrate). The standout gap is 1049% more hashrate (8.7 vs 100.0 TH/s) in the Bitmain Antminer S19j Pro (100Th)'s favour. That said, the Bitmain Antminer R4 isn't beaten everywhere — it still wins 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 R4 and Bitmain Antminer S19j Pro (100Th) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S19j Pro (100Th) 1049% more hashrate (8.7 vs 100.0 TH/s)
- Bitmain Antminer R4 72% better power draw (845 vs 3,050 W)
- Bitmain Antminer S19j Pro (100Th) 69% better efficiency (97.1 vs 30.5 J/TH)
- Bitmain Antminer R4 81% better weight (2,500 vs 13,200 kg)
- Bitmain Antminer S19j Pro (100Th) 261% more heat output (2,883 vs 10,407 BTU/hr)
- Bitmain Antminer R4 27% more home mining score (28.0 vs 22.0)
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.
| Bitmain Antminer R4 | Metric | Bitmain Antminer S19j Pro (100Th) |
|---|---|---|
| — | Upfront cost (MSRP) | $600 |
| -$1.70 | Daily net profit | -$3.56 |
| -$621 | Net after 1 year | -$1,899 |
| -$1,242 | Net after 2 years | -$3,199 |
| -$1,862 | Net after 3 years | -$4,498 |
| — | 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 R4Score: 28/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer S19j Pro (100Th)30.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer R4 or Bitmain Antminer S19j Pro (100Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer R4 is more profitable at $-1.70/day compared to $-3.56/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 R4 vs Bitmain Antminer S19j Pro (100Th): which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer R4 or Bitmain Antminer S19j Pro (100Th)?
The Bitmain Antminer R4 scores 28/100 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.
What is the efficiency difference between Bitmain Antminer R4 and Bitmain Antminer S19j Pro (100Th)?
The Bitmain Antminer R4 runs at 97.1 J/TH while the Bitmain Antminer S19j Pro (100Th) runs at 30.5 J/TH — a difference of 66.6 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 69% better efficiency (97.1 vs 30.5 J/TH).