NerdQAxe++ vs Bitmain T21 (190TH)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| NerdQAxe++ | Specification | Bitmain T21 (190TH) |
|---|---|---|
| 4.0 TH/s | Hashrate | 190.0 TH/s |
| 120 W | Power Consumption | 3,610 W |
| 30.0 J/TH | Efficiency | 19.0 J/TH |
| 42 dB | Noise Level | 76 dB |
| 0.5 kg | Weight | 16.4 kg |
| 409 BTU/hr | BTU Output | 12,317 BTU/hr |
| 58/100 | Home Mining Score | 23/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| D-Central | Manufacturer | Bitmain |
Profitability Comparison
NerdQAxe++
Bitmain T21 (190TH)
Based on BTC price of $77,441 and current network difficulty as of Apr 25, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain T21 (190TH) wins on 3 of 6 factors (efficiency, hashrate, price-performance). The NerdQAxe++ holds the edge in power consumption and home mining score and noise level. 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
NerdQAxe++Score: 58/100. 42 dB noise level.
Best for Efficiency
Bitmain T21 (190TH)19.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the NerdQAxe++ or Bitmain T21 (190TH) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the NerdQAxe++ is more profitable at $-0.14/day compared to $-1.84/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 NerdQAxe++ or Bitmain T21 (190TH)?
The NerdQAxe++ is quieter at 42 dB compared to the Bitmain T21 (190TH) at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the NerdQAxe++ or Bitmain T21 (190TH)?
The NerdQAxe++ scores 58/100 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 NerdQAxe++ and Bitmain T21 (190TH)?
The NerdQAxe++ runs at 30.0 J/TH while the Bitmain T21 (190TH) runs at 19.0 J/TH — a difference of 11.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.