Dieser Artikel ist auf Englisch.
The one number on the spec sheet that sets the bill
A miner’s efficiency, in joules per terahash (J/TH), is the power it draws for each terahash of work. Multiply it by the hashrate and you have the machine’s draw in watts: an S23 Hyd at 580 TH/s and 9.5 J/TH draws 5,510 W; an S21 Pro at 234 TH/s and 15 J/TH draws 3,510 W. Power is billed by the kWh, so J/TH fixes the bill for every terahash for as long as the machine runs. J/TH explained covers the arithmetic.
| Machine | Hashrate | Power | Efficiency | Cooling |
|---|---|---|---|---|
| Antminer S23 Hyd | 580 TH/s | 5,510 W | 9.5 J/TH | Hydro |
| Antminer S21 XP Hyd | 473 TH/s | 5,676 W | 12 J/TH | Hydro |
| Antminer S21e XP Hyd | 430 TH/s | 5,590 W | 13 J/TH | Hydro |
| Antminer S21 XP | 270 TH/s | 3,645 W | 13.5 J/TH | Air |
| Antminer S21 Pro | 234 TH/s | 3,510 W | 15 J/TH | Air |
| Antminer S21 | 200 TH/s | 3,500 W | 17.5 J/TH | Air |
IllustrationPower per terahash at Segments’ hosting rates
Segments hosts every machine a client owns at one rate, 6.0¢/kWh, with installation paid once. At that rate, a terahash on an S23 costs about a third less in power than one on an S21 Pro:
| Machine | Efficiency | Hosting rate | Power a month, per TH |
|---|---|---|---|
| Antminer S23 Hyd | 9.5 J/TH | 6.0¢ | $0.40 |
| Antminer S21 XP Hyd | 12 J/TH | 6.0¢ | $0.50 |
| Antminer S21e XP Hyd | 13 J/TH | 6.0¢ | $0.54 |
| Antminer S21 XP | 13.5 J/TH | 6.0¢ | $0.56 |
| Antminer S21 Pro | 15 J/TH | 6.0¢ | $0.62 |
| Antminer S21 | 17.5 J/TH | 6.0¢ | $0.73 |
How much of what it mines is left after power
Pools pay by the terahash. On 31 October 2026 one TH/s mined about 0.00000042 BTC a day, roughly $0.033 at a Bitcoin price near $76,900; today’s hashprice is below. Take away the power for that terahash and what remains is yours, before the pool fee.
- Hashprice
- $0.0327 pro TH/s und Tag
- Bitcoin-Preis
- $77,150
| Machine | Hosting rate | Power per TH a day | Left after power |
|---|---|---|---|
| Antminer S23 Hyd | 6.0¢ | $0.0137 | 58% |
| Antminer S21 XP Hyd | 6.0¢ | $0.0173 | 47% |
| Antminer S21e XP Hyd | 6.0¢ | $0.0187 | 43% |
| Antminer S21 XP | 6.0¢ | $0.0194 | 40% |
| Antminer S21 Pro | 6.0¢ | $0.0216 | 34% |
| Antminer S21 | 6.0¢ | $0.0252 | 23% |
Difficulty rises as machines join the network. Each rise takes a little off every terahash’s revenue while its power stays the same, so the machine that keeps the bigger share has more room for it.
What one bitcoin costs in power
The same figures turned around: the power a terahash draws in a day, divided by the bitcoin it mines in a day.
| Machine | Hosting rate | Power per BTC mined |
|---|---|---|
| Antminer S23 Hyd | 6.0¢ | ≈ $32,300 |
| Antminer S21 XP Hyd | 6.0¢ | ≈ $40,800 |
| Antminer S21e XP Hyd | 6.0¢ | ≈ $44,200 |
| Antminer S21 XP | 6.0¢ | ≈ $45,900 |
| Antminer S21 Pro | 6.0¢ | ≈ $51,000 |
| Antminer S21 | 6.0¢ | ≈ $59,500 |
For the time each machine takes, see how long it takes to mine 1 bitcoin.
One S23 does the work of two and a half S21 Pros
At 580 TH/s, one S23 Hyd hashes as much as 2.5 S21 Pros. Fewer machines means fewer units to install, fewer fans and power supplies to wear, and one machine to watch instead of several. For a fleet of about 1 PH/s:
| Machine | Machines | Hashrate | Power drawn |
|---|---|---|---|
| Antminer S23 Hyd | 2 | 1.16 PH/s | 11.0 kW |
| Antminer S21 XP Hyd | 3 | 1.42 PH/s | 17.0 kW |
| Antminer S21 XP | 4 | 1.08 PH/s | 14.6 kW |
| Antminer S21 Pro | 5 | 1.17 PH/s | 17.6 kW |
| Antminer S21 | 5 | 1.00 PH/s | 17.5 kW |
What they cost to buy
Here the S21 range has the edge. On 31 October 2026 the S23 Hyd cost about 1.7 times as much per terahash as an S21 XP Hyd and nearly three times as much as an S21 Pro. Its power saving narrows that gap each month but does not close it within the first 12-month hosting term. The S23 is the machine for buyers who put the share of each bitcoin first and want fewer machines for the same hashrate; an S21 is the machine for buyers who put the lowest price per terahash first.
The Antminer S23 page works out the first 12 months per terahash, price, installation, transport and power, for every model at today’s prices. Today’s prices for three of them:
Antminer S23hyd (563T)
563 TH · 9.8 J/TH
Heutiger Preis
$16,950
Miner ansehen
Antminer S21 XP HYD (473TH)
473 TH · 12.0 J/TH
Heutiger Preis
$8,215
Miner ansehen
Bitmain Antminer S21 Pro+ (234TH)
234 TH · 15.0 J/TH
Heutiger Preis
$2,495
Miner ansehen
S23 without buying a machine
Segments also offers S23 as a token: a share of a published pool of hydro miners, held in a Solana wallet and staked to the holder’s own pool. Its electricity is charged at the S23 pool tariff of 6.5¢/kWh on a 9.5 J/TH basis, and it can be bought from the price of one token, with no machine to buy, ship or host. Today’s figures are on the homepage S23 panel.
S23 is a token. Its price can go down as well as up, it is not title to a specific machine, and mining output is not guaranteed. Availability depends on where you live.
Fragen
- Is the Antminer S23 cheaper to run than the S21?
- Per terahash, yes. At 9.5 J/TH an S23 Hyd hosted at 6.0¢/kWh drew about $0.40 a month in power per TH on 31 October 2026, against $0.62 for an S21 Pro and $0.73 for an S21 at the same rate. Per machine it draws more, because it hashes more.
- Why does the S23 cost more per terahash?
- It is the newest generation, built to draw less power for each terahash, and buyers pay for that up front. At today’s prices its power saving narrows the gap with an S21 each month but does not close it within the first 12-month hosting term. What it gives in return is a bigger share of each bitcoin mined and fewer machines for the same hashrate.
- What hosting rate does the S23 Hyd get at Segments?
- The same 6.0¢/kWh as an S21, with installation paid once. The rate covers power, cooling, monitoring, cleaning and routine maintenance.
- How many S21 machines equal one S23?
- About two and a half S21 Pros (234 TH/s each), or three S21s (200 TH/s), hash as much as one S23 Hyd (580 TH/s). They draw about 60% and 85% more power to do it.