Antminer E9 Pro vs Bitmain Antminer KS5 Pro (21Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer E9 Pro | Specification | Bitmain Antminer KS5 Pro (21Th) |
|---|---|---|
| 3,680.0 MH/s | Taux de hachage | 21.0 TH/s |
| 2,200 W | Consommation électrique | 3,150 W |
| 597,826.1 J/TH | Efficiency | 150.0 J/TH |
| 75 dB | Niveau de bruit | 75 dB |
| 14.2 kg | Weight | 15.8 kg |
| 7,506 BTU/hr | BTU Output | 10,748 BTU/hr |
| 40/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| EtHash | Algorithme | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer E9 Pro
Bitmain Antminer KS5 Pro (21Th)
Based on BTC price of $78,195 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer KS5 Pro (21Th), which leads on 3 of 5 weighted factors (efficacité, hashrate, rapport qualité-prix). Where it pulls away hardest is 570552% more hashrate (0.0 vs 21.0 TH/s). The Antminer E9 Pro holds the edge in consommation électrique and score de minage domestique. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer E9 Pro and Bitmain Antminer KS5 Pro (21Th) sit on each measurable spec:
- Bitmain Antminer KS5 Pro (21Th) 570552% more hashrate (0.0 vs 21.0 TH/s)
- Antminer E9 Pro 30% better power draw (2,200 vs 3,150 W)
- Bitmain Antminer KS5 Pro (21Th) 100% better efficacité (597,826 vs 150 J/TH)
- Antminer E9 Pro 10% better weight (14.2 vs 15.8 kg)
- Bitmain Antminer KS5 Pro (21Th) 43% more heat output (7,506 vs 10,748 BTU/hr)
- Antminer E9 Pro 11% more score de minage domestique (40.0 vs 36.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Antminer E9 Pro | Metric | Bitmain Antminer KS5 Pro (21Th) |
|---|---|---|
| $3,000 | Upfront cost (MSRP) | $860 |
| -$5.28 | Daily net profit | -$6.80 |
| -$4,927 | Net after 1 year | -$3,344 |
| -$6,854 | Net after 2 years | -$5,827 |
| -$8,781 | Net after 3 years | -$8,311 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer E9 ProScore: 40/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer KS5 Pro (21Th)150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer E9 Pro or Bitmain Antminer KS5 Pro (21Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer E9 Pro is more profitable at $-5.28/day compared to $-6.80/day for the Bitmain Antminer KS5 Pro (21Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer E9 Pro or Bitmain Antminer KS5 Pro (21Th)?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer E9 Pro or Bitmain Antminer KS5 Pro (21Th)?
The Antminer E9 Pro scores 40/100 on our Home Mining Score (vs 36/100 for the Bitmain Antminer KS5 Pro (21Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer E9 Pro vs Bitmain Antminer KS5 Pro (21Th): how much does the efficiency gap matter?
The Antminer E9 Pro runs at 597,826.1 J/TH while the Bitmain Antminer KS5 Pro (21Th) runs at 150.0 J/TH — a difference of 597,676.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 100% better efficacité (597,826 vs 150 J/TH).