Specifications Comparison
| Holic H28 | Specification | NerdAxe |
|---|---|---|
| 28.0 TH/s | Hashrate | 500.0 GH/s |
| 2,100 W | Power Consumption | 12 W |
| 75.0 J/TH | Efficiency | 24.0 J/TH |
| — | Noise Level | 30 dB |
| — | Weight | 0.2 kg |
| 7,165 BTU/hr | BTU Output | 41 BTU/hr |
| 26/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Holic | Manufacturer | D-Central |
Profitability Comparison
Holic H28
NerdAxe
Based on BTC price of $79,223 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the NerdAxe, which leads on 4 of 5 weighted factors (efficiency, power consumption, home mining score, noise level). Its biggest concrete edge: 99% better power draw (2,100.0 vs 12.0 W). The Holic H28 claws back ground on hashrate. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Holic H28 and NerdAxe sit on each measurable spec:
- Holic H28 5500% more hashrate (28.0 vs 0.5 TH/s)
- NerdAxe 99% better power draw (2,100.0 vs 12.0 W)
- NerdAxe 68% better efficiency (75.0 vs 24.0 J/TH)
- Holic H28 17419% more heat output (7,165.2 vs 40.9 BTU/hr)
- NerdAxe 169% more home mining score (26.0 vs 70.0)
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.
| Holic H28 | Metric | NerdAxe |
|---|---|---|
| — | Upfront cost (MSRP) | $69 |
| -$4.02 | Daily net profit | -$0.01 |
| -$1,467 | Net after 1 year | -$73 |
| -$2,934 | Net after 2 years | -$77 |
| -$4,401 | Net after 3 years | -$81 |
| — | 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
NerdAxeScore: 70/100. 30 dB noise level.
Best for Efficiency
NerdAxe24.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Holic H28 or NerdAxe more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the NerdAxe is more profitable at $-0.01/day compared to $-4.02/day for the Holic H28. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Holic H28 or NerdAxe?
The NerdAxe is quieter at 30 dB compared to the Holic H28 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Holic H28 or the NerdAxe?
The NerdAxe scores 70/100 on our Home Mining Score (vs 26/100 for the Holic H28). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Holic H28 and NerdAxe on J/TH?
The Holic H28 runs at 75.0 J/TH while the NerdAxe runs at 24.0 J/TH — a difference of 51.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 68% better efficiency (75.0 vs 24.0 J/TH).