Bitmain Antminer S23 vs Bitmain T21 (190TH)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S23 | Specification | Bitmain T21 (190TH) |
|---|---|---|
| 318.0 TH/s | Hashrate | 190.0 TH/s |
| 3,498 W | Power Consumption | 3,610 W |
| 11.0 J/TH | Efficiency | 19.0 J/TH |
| 75 dB | Noise Level | 76 dB |
| 14.5 kg | Weight | 16.4 kg |
| 11,935 BTU/hr | BTU Output | 12,317 BTU/hr |
| 36/100 | Home Mining Score | 23/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S23
Bitmain T21 (190TH)
Based on BTC price of $79,245 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S23 edges it: 5 of 6 factors go its way (efficiency, hashrate, power consumption, home mining score, noise level). The standout gap is 42% better efficiency (11.0 vs 19.0 J/TH) in the Bitmain Antminer S23's favour. The Bitmain T21 (190TH) claws back ground on price-performance. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S23 and Bitmain T21 (190TH) sit on each measurable spec:
- Bitmain Antminer S23 67% more hashrate (318 vs 190 TH/s)
- Bitmain Antminer S23 3% better power draw (3,498 vs 3,610 W)
- Bitmain Antminer S23 42% better efficiency (11.0 vs 19.0 J/TH)
- Bitmain Antminer S23 1% better noise (75.0 vs 76.0 dB)
- Bitmain Antminer S23 12% better weight (14.5 vs 16.4 kg)
- Bitmain T21 (190TH) 3% more heat output (11,935 vs 12,317 BTU/hr)
- Bitmain Antminer S23 57% more home mining score (36.0 vs 23.0)
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 S23 | Metric | Bitmain T21 (190TH) |
|---|---|---|
| $4,999 | Upfront cost (MSRP) | $1,700 |
| $3.20 | Daily net profit | -$1.74 |
| -$3,830 | Net after 1 year | -$2,333 |
| -$2,662 | Net after 2 years | -$2,967 |
| -$1,493 | Net after 3 years | -$3,600 |
| Takes ~4.3 years to pay back at current rates | 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
Bitmain Antminer S23$4.94/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S23Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer S2311.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer S23 vs Bitmain T21 (190TH): which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S23 is more profitable at $3.20/day compared to $-1.74/day for the Bitmain T21 (190TH). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S23 or the Bitmain T21 (190TH) better for noise-sensitive spaces?
The Bitmain Antminer S23 is quieter at 75 dB compared to the Bitmain T21 (190TH) at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S23 vs Bitmain T21 (190TH): which fits a residential setup better?
The Bitmain Antminer S23 scores 36/100 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.
Bitmain Antminer S23 vs Bitmain T21 (190TH): how much does the efficiency gap matter?
The Bitmain Antminer S23 runs at 11.0 J/TH while the Bitmain T21 (190TH) runs at 19.0 J/TH — a difference of 8.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 42% better efficiency (11.0 vs 19.0 J/TH).