DirectPoolWin a minerGiveawayDRAW IN7 Nov ยท 16:30

Antminer S9 (used) vs Bitaxe Gamma

The Antminer S9 (used) hashes about 11 times faster than the Bitaxe Gamma, so its chance of finding a block is about that many times higher. It also draws about 75 times the power (1350 W against 18 W). Per terahash, the Bitaxe Gamma is the most efficient at 15 J/TH. The Antminer S9 (used) is the cheapest to buy, from about $30.

Antminer S9 (used)
Bitaxe Gamma

True size

Antminer S9 (used)
350 x 135 x 158 mm
Outer size without packaging, length x width x height as each maker lists it, all drawn to the same scale. The orange outline is a bank card (85.6 x 54 mm) for comparison. Sizes from Bitmain support (Antminer S9 (used)).

Not drawn: the Bitaxe Gamma. Its maker does not publish an outer size, and we only draw sizes that come from the maker.

The numbers as charts

FIG. 1HashrateLonger bar, more guesses per second, better block odds.
Antminer S9 (used)13.5 TH/s
Bitaxe Gamma1.2 TH/s
FIG. 2Power drawWatts at the wall in normal use. Shorter is quieter and cheaper to run.
Antminer S9 (used)1,350 W
Bitaxe Gamma18 W
FIG. 3EfficiencyJoules per terahash. Shorter bar means more hashing for the same electricity.
Antminer S9 (used)100 J/TH
Bitaxe Gamma15 J/TH
FIG. 4First-year costLowest listed price plus one year of electricity at $0.20/kWh.
Antminer S9 (used)$30 + $2,367 = $2,397
Bitaxe Gamma$110 + $32 = $142
PurchaseElectricity, 1 year

Every figure

Antminer S9 (used)Bitaxe Gamma
Hashrate
13.5 TH/s1.2 TH/s
Power
1,350 W18 W
Efficiency
100 J/TH15 J/TH
Price range
$30 to $120$110 to $230
Electricity per year at 0.20/kWh
2,36732
Chip
189x Bitmain BM1387 (63 per hashboard, 3 boards)1x Bitmain BM1370
Cooling and noise
Two 120 mm fans. About 76 dB, like a vacuum cleanerHeatsink with one small fan. A quiet hum at stock, louder when overclocked
Connectivity
Ethernet (RJ45) onlyWiFi, 2.4 GHz only. No Ethernet
Power supply
Separate 12 V PSU, usually the Bitmain APW3++. Check that a used unit includes one5 V barrel jack, 5 V 6 A (30 W) adapter usually included
Size and weight
350 x 135 x 158 mm, 4.5 kg without PSUPalm-sized bare board with screen, no case
Open source
No. Third-party firmware such as Braiins OS is availableYes: hardware design and AxeOS firmware. The ASIC chip itself is closed
Release year
20162024

Electricity in the same currency as your price per kWh. Real draw and hashrate vary with firmware, tuning and room temperature.

Your odds

Small miners rarely find a block alone. The odds calculator shows the live chances for each one, solo or with the pool.

Popular comparisons