Antminer S19 XP vs Antminer S21
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S19 XP | Specification | Antminer S21 |
|---|---|---|
| 140.0 TH/s | Hashrate | 200.0 TH/s |
| 3,010 W | Power Consumption | 3,500 W |
| 21.5 J/TH | Efficiency | 17.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.4 kg | Weight | 14.6 kg |
| 10,270 BTU/hr | BTU Output | 11,942 BTU/hr |
| 84/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S19 XP
Antminer S21
Based on BTC price of $75,694 and current network difficulty as of Mar 17, 2026. Actual results vary.
Verdict
The S19 XP was the final evolution of the S19 generation, pushing efficiency to its limits. The S21 represents an entirely new generation. How much has changed?
The S21 delivers a meaningful efficiency leap over even the XP variant. However, the S19 XP remains one of the best miners of its generation and can be found at steep discounts on the secondary market, making it competitive on ROI.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S19 XPScore: 84/100. 75 dB noise level.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Should I upgrade from an S19 XP to an S21?
If your electricity is above $0.07/kWh, the S21's efficiency gains will likely justify the upgrade cost over 12-18 months. At cheaper rates, the XP remains highly profitable.
Is the S19 XP still worth buying in 2026?
At the right price, absolutely. The S19 XP's efficiency was top-tier for its generation and it remains profitable at moderate electricity rates. It is a strong used-market buy.