Antminer S9j vs Bitmain T21 (190TH)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9j | Specification | Bitmain T21 (190TH) |
|---|---|---|
| 14.5 TH/s | Hashrate | 190.0 TH/s |
| 1,350 W | Power Consumption | 3,610 W |
| 93.1 J/TH | Efficiency | 19.0 J/TH |
| 76 dB | Noise Level | 76 dB |
| 4.2 kg | Weight | 16.4 kg |
| 4,606 BTU/hr | BTU Output | 12,317 BTU/hr |
| 83/100 | Home Mining Score | 23/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S9j
Bitmain T21 (190TH)
Based on BTC price of $78,009 and current network difficulty as of Apr 26, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain T21 (190TH) wins on 2 of 4 factors (efficiency, hashrate). The Antminer S9j holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S9jScore: 83/100. 76 dB noise level.
Best for Efficiency
Bitmain T21 (190TH)19.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S9j or Bitmain T21 (190TH) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain T21 (190TH) is more profitable at $-1.79/day compared to $-2.72/day for the Antminer S9j. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer S9j or Bitmain T21 (190TH)?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer S9j or Bitmain T21 (190TH)?
The Antminer S9j scores 83/100 on our Home Mining Score (vs 23/100 for the Bitmain T21 (190TH)). 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 Antminer S9j and Bitmain T21 (190TH)?
The Antminer S9j runs at 93.1 J/TH while the Bitmain T21 (190TH) runs at 19.0 J/TH — a difference of 74.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.