Posts Tagged ‘Bitcoin miner

Bitmain has announced its next-generation 7nm miners – Antminer S15 and Antminer T15 and is already taking orders for the new devices with estimated shipping time for the second half of December. Both new Bitcoin ASIC miners have two different operating modes – a high-performance one for maximum hashrate and an energy saving mode that offers better energy efficiency with lower power usage and reduced hashrate. Antminer S15 is available for $1475 USD with a limit of 2 miner per user and Antminer T15 for $913 USD with a limit of 50 miners per user. The new miners do come with a built-in power supply included in the price, but be aware that apparently this PSU is only for 220V input power and also the output voltage is not the standard 12 used previously, so finding an alternative power supply may turn out to be a bit of a challenge.

The Antminer S15 high-performance mode can achieve a hash rate of 28 TH/s with a power efficiency as low as 57 J/TH (1596W); its energy-saving mode can improve power efficiency to 50 J/TH while maintaining a hash rate of 17 TH/s (850W). The Antminer T15 high-performance mode sees a hash rate of 23 TH/s and a power efficiency as low as 67 J/TH (1541W). Its energy-saving mode can improve power efficiency to 60 J/TH while maintaining a hash rate of 20 TH/s (1200W). The new Anminer ASIC miners come with a new high conversion power supply APW8 that has a non-standard 16-18V high-voltage output, so they can effectively reduce the power loss during the power conversion process, helping mining farms save on electricity costs, or so Bitmain claims as a reason to include the new power supply module as a part of the miner. The only problem is that the new power supplies are not designed to operate on 110V power grids and that can present a challenge for some regions that do operate on these.

For more information about the new Antminer S15 Bitcoin ASIC miners…
For more information about the new Antminer T15 Bitcoin ASIC miners…

While we are still waiting for the upcoming Avalon A9 Bitcoin ASIC miners that will be based on 7nm technology, Canaan Creative has apparently started selling AvalonMiner 851… the successor of 841. The new AvalonMiner 851 is based on the same 16 nm A3210HP ASIC chips that the 841 uses, though apparently there have been some optimizations in order for the new model to reach 15 THS up from 13.6 THS for the 841 version. So with Canaan AvalonMiner 851 you get 15 THS hashrate for Bitcoin mining with 1450W of power usage, allowing for a slightly better hashrate density, but not much of an efficiency improvement in terms of power usage. It is interesting to note that at the official Canaan website the AvalonMiner 841 is listed at $425 USD while the 851 is at $450 USD or just 25 dollars more, though wit distributors the price difference would be higher.

Canaan AvalonMiner 851 Specifications:
Hashrate: 15 TH/s, -5% ~ +10% : Min 14.5
Power Consumption: 1450W, +0% ~ +20% @ 14.5 TH/s, 25°C, 93% PSU Efficiency, 12V AC, Wall-Plug
Power Efficiency: 0.11 J / GigaHash Wall-Plug
Rated Input Voltage: 12 ~ 12.6V
Chips: 104 x A3210M 16nm ASIC
Frequency: Smart Speed
PSU output pins: 8 X 6PIN
Network Connection: AUC3 + AUC3 I2C to AvalonMiner Controller
Controller: AvalonMiner Controller
AUC3: Up to 5 devices / AUC3, Daisy-Chain Connection
Operating Temperature: -5℃ ~ 35℃
Air-intake Temperature: -5℃ ~ 35℃
Cooling: 1x 12038 FAN, 6000RPM
Noise: 0 ~ 65db
Dimensions: 370mm x 150mm x 136mm
Gross Dimensions: 430 mm x 215mm x 205mm
Net weight: 4.7kg
Gross weight: 5.2kg

Fore mroe details about the Canaan AvalonMiner 851 Bitcoin ASIC miner…

bitcrane-bitcoin-asic-miner

Have you looked at the specifications of the currently available generation of Bitcoin ASICs lately while considering getting a miner in order to get some coins at home? As Bitcoin network difficulty is progressively increasing every ~13 days, the hardware manufacturers are already hitting the limits of the 28nm production technology and the BTC exchange rate stays at low levels things are not looking good. We have checked what you can expect to earn with some of the SHA-256 ASIC miners for Bitcoin and have done some calculations that you can see below using the current network difficulty as a base.


SHA-256 ASIC Miners for Bitcoin:

Rockminer R3 Box – 450 GHS @ 450W – $185 USD
BitMain AntMiner S3+ – 453 GHS @ 355W – $215 USD
Rockminer T1 BOX – 800 GHS @ 1000W – $349 USD
BitCrane T-110 – 1.1 THS @ 1100W – $1299 USD
Spondoolies-Tech SP20 Jackson – 1.7 THS @ 1100W – $1190 USD
BitMain AntMiner S4 – 2 THS @ 2000W – $1250 USD

Looking at the list of miners above you can see that they are actually not that many options available that you are currently able to order and get very soon in your own hands. There are some miners available for pre-order with next month shipping or Q1 2015 expected availability for example but we have not included these. KnCMiner’s Neptune is also not included as these are not being sold at the moment and even if they did at the last listed price nobody would be buying them anyway. We have not listed some other miners from companies that are supposed to be shipping, but we have not found a single trustworthy review or confirmation from anyone that actually received a product from them.


Expected daily mined BTC with the current network difficulty:

Rockminer R3 Box – 0.006466 daily, 0.04526 weekly, 0.194 monthly
BitMain AntMiner S3+ – 0.006509 daily, 0.04556 weekly, 0.1953 monthly
Rockminer T1 BOX – 0.01149 daily, 0.08043 weekly, 0.3447 monthly
BitCrane T-110 – 0.0158 daily, 0.1106 weekly, 0.474 monthly
Spondoolies-Tech SP20 Jackson – 0.02443 daily, 0.171 weekly, 0.7329 monthly
BitMain AntMiner S4 – 0.02874 daily, 0.2012 weekly, 0.8623 monthly

Do note that the above numbers represent what you can earn with the hashrate that the specific ASIC miner provides with a Bitcoin network difficulty remaining at 35,002,482,026 for the duration of the whole specified period. Also these numbers represent the mined coins and you would need to subtract the costs for the electricity from them based on the power usage for the miner and your electricity prices per kWh in order to get an actual profit you will get. As you can see even 2 THS are already not that much and you are going to mine less than 1 BTC per month with this hashrate and with the current sub $400 USD price for Bitcoin when you subtract the electricity fee (can get to half the mined coins) things do not look promising. So for small time miners Bitcoin mining with ASIC miners is not very interesting anymore and even for larger farms things might not be that bright as you might think, so it is no surprise that some of these are selling their hashrate in the form of cloud services. The only thing that could make Bitcoin mining attractive to normal users again is a significant increase in the price of BTC, so you can be mining now and keeping the mined coins waiting for that to happen…


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