Bitaxe Gamma vs Bitaxe Ultra
Side-by-side specs, profitability, and home mining comparison.
Quick verdict
For most buyers the Bitaxe Gamma is the stronger pick — Updated chip revision delivers better efficiency and hashrate. The Bitaxe Gamma runs 1,200.0 GH/s at 15.0 J/TH; the Bitaxe Ultra runs 500.0 GH/s at 30.0 J/TH.
Specs verified against the D-Central Mining Bible \xc2\xb7 July 2026
Specifications Comparison
| Bitaxe Gamma | Specification | Bitaxe Ultra |
|---|---|---|
| 1,200.0 GH/s | Taux de hachage | 500.0 GH/s |
| 18 W | Consommation électrique | 15 W |
| 15.0 J/TH | Efficiency | 30.0 J/TH |
| 38 dB | Niveau de bruit | 35 dB |
| 0.3 kg | Weight | 0.3 kg |
| 61 BTU/hr | BTU Output | 51 BTU/hr |
| 100/100 | Home Mining Score | 100/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitaxe | Manufacturer | Bitaxe |
Profitability Comparison
Bitaxe Gamma
Bitaxe Ultra
Based on BTC price of $62,524 and current network difficulty as of Jul 14, 2026. Actual results vary.
Verdict
The Ultra was the original high-performance Bitaxe variant. The Gamma succeeded it with refined performance characteristics.
The Gamma is the natural successor to the Ultra, offering improved performance from an updated chip design. The Ultra is discontinued but remains a capable solo miner for existing owners.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitaxe Gamma and Bitaxe Ultra sit on each measurable spec:
- Bitaxe Gamma 140% more hashrate (1,200 vs 500 GH/s)
- Bitaxe Ultra 17% better power draw (18.0 vs 15.0 W)
- Bitaxe Gamma 50% better efficacité (15.0 vs 30.0 J/TH)
- Bitaxe Ultra 8% better noise (38.0 vs 35.0 dB)
- Bitaxe Gamma 20% more heat output (61.4 vs 51.2 BTU/hr)
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.
| Bitaxe Gamma | Metric | Bitaxe Ultra |
|---|---|---|
| $99 | Upfront cost (MSRP) | $79 |
| -$0.01 | Daily net profit | -$0.02 |
| -$101 | Net after 1 year | -$86 |
| -$103 | Net after 2 years | -$94 |
| -$106 | Net after 3 years | -$101 |
| 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
Bitaxe Gamma15.0 J/TH — lower electricity cost per unit of hashrate.
Foire aux questions
Is the Bitaxe Ultra still being manufactured?
The Ultra has been succeeded by the Gamma. D-Central may have limited Ultra stock, but the Gamma is the recommended replacement.
Are Ultra and Gamma accessories compatible?
Yes. Both share the same form factor and use the same heatsinks, mesh stands, and 5V DC power supplies.