Bitmain Antminer S19 XP official reference vs Bitmain Antminer S21 official reference
Side-by-side specs, profitability, and home mining comparison.
Quick verdict
For most buyers the Bitmain Antminer S21 official reference is the stronger pick — New-generation efficiency that the XP's refined S19 platform cannot match. The Bitmain Antminer S19 XP official reference runs 141.0 TH/s at 21.5 J/TH; the Bitmain Antminer S21 official reference runs 200.0 TH/s at 17.5 J/TH.
Specs verified against the D-Central Mining Bible \xc2\xb7 August 2026
Specifications Comparison
| Bitmain Antminer S19 XP official reference | Specification | Bitmain Antminer S21 official reference |
|---|---|---|
| 141.0 TH/s | Hashrate | 200.0 TH/s |
| 3,032 W | Power Consumption | 3,500 W |
| 21.5 J/TH | Efficiency | 17.5 J/TH |
| — | Noise Level | — |
| 14.2 kg | Weight | 15.4 kg |
| 10,344 BTU/hr | BTU Output | 11,942 BTU/hr |
| — | Home Mining Score | — |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S19 XP official reference
Bitmain Antminer S21 official reference
Based on BTC price of $79,651 and current network difficulty as of Aug 28, 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.
Spec Deltas
The Bitmain Antminer S19 XP official reference and Bitmain Antminer S21 official reference diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21 official reference 42% more hashrate (141 vs 200 TH/s)
- Bitmain Antminer S19 XP official reference 13% better power draw (3,032 vs 3,500 W)
- Bitmain Antminer S21 official reference 19% better efficiency (21.5 vs 17.5 J/TH)
- Bitmain Antminer S19 XP official reference 8% better weight (14.2 vs 15.4 kg)
- Bitmain Antminer S21 official reference 15% more heat output (10,344 vs 11,942 BTU/hr)
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitmain Antminer S21 official reference17.5 J/TH — lower electricity cost per unit of hashrate.
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.
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