Best Bitcoin Mining Hardware (February 2018)

In early 2018 there are lots of new Bitcoin ASIC miners being announced, but many of these won't be available to mine with for a few months.

This guide will go through some of the miners you can buy right now, estimating how profitable these are based on the latest Bitcoin difficulty & price in February 2018.


One Year Break Even Comparison

Using our ASIC Bitcoin miner calculator, we can give optimistic and skeptical estimates for profitability. This guide is useful for an initial comparison, and the calculator can be used to get the most up-to-date data. We assume that if mining stops being profitable, you'll turn the miner off - so for the Antminer S9 for example, the yearly income is $0 (but this would actually be negative if you kept it running).

The links to Amazon below are affiliates, so we'll get some money if you buy something using these.


Antminer S9 (14TH/s batch)

Purchase cost $2,320 direct, ($4,295 on Amazon), power usage 1372W, hashrate 14TH/s.

Optimistic yearly income: $2,858 (US), $962 (UK)
Skeptical yearly income: $608 (US), $234 (UK)


Antminer T9 (more reliable competitor to the S9)

Purchase cost $1,250 direct, power usage 1576W, hashrate 12.5TH/s.

Optimistic yearly income: $2,040 (US), $355 (UK)
Skeptical yearly income: $438 (US), $105 (UK)


Antminer R4 (quieter than competitors, designed for home use)

Purchase cost $1,132 direct ($5,000 on Amazon), power usage 845W, hashrate 8.7TH/s.

Optimistic yearly income: $1,855 (US), $635 (UK)
Skeptical yearly income: $395 (US), $154 (UK)


Antminer S7 (predecessor to the S9)

Purchase cost $440 direct ($1,050 on Amazon), power usage 1300W, hashrate 4.7TH/s.

Optimistic yearly income: $78 (US), $0 (UK)
Skeptical yearly income: $25 (US), $0 (UK)


If the miner you want isn't available on Amazon, we wrote a guide suggesting some alternatives here.


Assumptions (this is just if you're interested, not required reading):

  1. Block reward of 12.5 (as this won't change until June 2020).
  2. We assume a monthly difficulty increase of 15% for optimistic predictions, and 40% for skeptical predictions.
  3. We assume Bitcoin's price will increase by 10% monthly for optimistic predictions, and 8% monthly for skeptical predictions.
  4. Electricity costs vary massively worldwide, so we provide estimates for the US (where we assume power is $0.10 per kWH) and the UK (where we assume power is $0.20 per kWH). Countries like China are cheaper, so you'd get a higher return.
  5. The largest mining pool (AntPool) charges 2.5% fees, so we use this fee for calculations.

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