Bitmain Antminer R4 vs Bitmain T21 (190TH)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer R4 | Specification | Bitmain T21 (190TH) |
|---|---|---|
| 8.7 TH/s | Hashrate | 190.0 TH/s |
| 845 W | Power Consumption | 3,610 W |
| 97.1 J/TH | Efficiency | 19.0 J/TH |
| — | Noise Level | 76 dB |
| 2,500.0 kg | Weight | 16.4 kg |
| 2,883 BTU/hr | BTU Output | 12,317 BTU/hr |
| 28/100 | Home Mining Score | 23/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer R4
Bitmain T21 (190TH)
Based on BTC price of $69,832 and current network difficulty as of Mar 26, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain T21 (190TH) wins on 3 of 5 factors (efficiency, hashrate, noise level). The Bitmain Antminer R4 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
Bitmain Antminer R4Score: 28/100. 0 dB noise level.
Best for Efficiency
Bitmain T21 (190TH)19.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer R4 or Bitmain T21 (190TH) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer R4 is more profitable at $-1.76/day compared to $-2.91/day for the Bitmain T21 (190TH). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer R4 or Bitmain T21 (190TH)?
The Bitmain T21 (190TH) is quieter at 76 dB compared to the Bitmain Antminer R4 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer R4 or Bitmain T21 (190TH)?
The Bitmain Antminer R4 scores 28/100 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 Bitmain Antminer R4 and Bitmain T21 (190TH)?
The Bitmain Antminer R4 runs at 97.1 J/TH while the Bitmain T21 (190TH) runs at 19.0 J/TH — a difference of 78.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.