iBeLink BM-K3 vs Goldshell KD5
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| iBeLink BM-K3 | Specification | Goldshell KD5 |
|---|---|---|
| 70.0 TH/s | Hashrate | 18.0 TH/s |
| 3,300 W | Power Consumption | 2,250 W |
| 47.1 J/TH | Efficiency | 125.0 J/TH |
| — | Noise Level | — |
| — | Weight | 8,500.0 kg |
| 11,260 BTU/hr | BTU Output | 7,677 BTU/hr |
| 22/100 | Home Mining Score | 26/100 |
| — | Release Year | — |
| Blake2s | Algorithm | Blake2s |
| iBeLink | Manufacturer | Goldshell |
Profitability Comparison
iBeLink BM-K3
Goldshell KD5
Based on BTC price of $78,265 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the iBeLink BM-K3 comes out ahead — it takes 3 of 5 (efficiency, hashrate, price-performance). Where it pulls away hardest is 289% more hashrate (70.0 vs 18.0 TH/s). The Goldshell KD5 holds the edge in power consumption and home mining score. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The iBeLink BM-K3 and Goldshell KD5 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- iBeLink BM-K3 289% more hashrate (70.0 vs 18.0 TH/s)
- Goldshell KD5 32% better power draw (3,300 vs 2,250 W)
- iBeLink BM-K3 62% better efficiency (47.1 vs 125.0 J/TH)
- iBeLink BM-K3 47% more heat output (11,260 vs 7,677 BTU/hr)
- Goldshell KD5 18% more home mining score (22.0 vs 26.0)
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.
| iBeLink BM-K3 | Metric | Goldshell KD5 |
|---|---|---|
| $820 | Upfront cost (MSRP) | $1,998 |
| -$5.40 | Daily net profit | -$4.75 |
| -$2,791 | Net after 1 year | -$3,732 |
| -$4,761 | Net after 2 years | -$5,467 |
| -$6,732 | Net after 3 years | -$7,201 |
| 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
Goldshell KD5Score: 26/100. 0 dB noise level.
Best for Efficiency
iBeLink BM-K347.1 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the iBeLink BM-K3 or Goldshell KD5 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Goldshell KD5 is more profitable at $-4.75/day compared to $-5.40/day for the iBeLink BM-K3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
iBeLink BM-K3 vs Goldshell KD5: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the iBeLink BM-K3 or the Goldshell KD5?
The Goldshell KD5 scores 26/100 on our Home Mining Score (vs 22/100 for the iBeLink BM-K3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
iBeLink BM-K3 vs Goldshell KD5: how much does the efficiency gap matter?
The iBeLink BM-K3 runs at 47.1 J/TH while the Goldshell KD5 runs at 125.0 J/TH — a difference of 77.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 62% better efficiency (47.1 vs 125.0 J/TH).