Bitmain Antminer KS5 Pro (21Th) vs IceRiver KS3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS5 Pro (21Th) | Specification | IceRiver KS3 |
|---|---|---|
| 21.0 TH/s | Hashrate | 8.0 TH/s |
| 3,150 W | Power Consumption | 3,200 W |
| 150.0 J/TH | Efficiency | 400.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.8 kg | Weight | 14.4 kg |
| 10,748 BTU/hr | BTU Output | 10,918 BTU/hr |
| 36/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | IceRiver |
Profitability Comparison
Bitmain Antminer KS5 Pro (21Th)
IceRiver KS3
Based on BTC price of $78,139 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer KS5 Pro (21Th) edges it: 4 of 4 factors go its way (efficiency, hashrate, power consumption, price-performance). Its biggest concrete edge: 63% better efficiency (150 vs 400 J/TH). Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Bitmain Antminer KS5 Pro (21Th) and IceRiver KS3 actually differ, with the gap quantified:
- Bitmain Antminer KS5 Pro (21Th) 163% more hashrate (21.0 vs 8.0 TH/s)
- Bitmain Antminer KS5 Pro (21Th) 2% better power draw (3,150 vs 3,200 W)
- Bitmain Antminer KS5 Pro (21Th) 63% better efficiency (150 vs 400 J/TH)
- IceRiver KS3 9% better weight (15.8 vs 14.4 kg)
- IceRiver KS3 2% more heat output (10,748 vs 10,918 BTU/hr)
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 KS5 Pro (21Th) | Metric | IceRiver KS3 |
|---|---|---|
| $860 | Upfront cost (MSRP) | $10,000 |
| -$6.80 | Daily net profit | -$7.39 |
| -$3,344 | Net after 1 year | -$12,698 |
| -$5,828 | Net after 2 years | -$15,396 |
| -$8,311 | Net after 3 years | -$18,095 |
| 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitmain Antminer KS5 Pro (21Th)150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer KS5 Pro (21Th) vs IceRiver KS3: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer KS5 Pro (21Th) is more profitable at $-6.80/day compared to $-7.39/day for the IceRiver KS3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer KS5 Pro (21Th) or the IceRiver KS3 better for noise-sensitive spaces?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitmain Antminer KS5 Pro (21Th) or the IceRiver KS3?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
How far apart are the Bitmain Antminer KS5 Pro (21Th) and IceRiver KS3 on J/TH?
The Bitmain Antminer KS5 Pro (21Th) runs at 150.0 J/TH while the IceRiver KS3 runs at 400.0 J/TH — a difference of 250.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 63% better efficiency (150 vs 400 J/TH).