<p>As more people contribute to mining, Bitcoin automatically adjusts the <a href="https://en.bitcoin.it/wiki/Difficulty" rel="nofollow">"difficulty"</a> so that the number of new bitcoins created by mining is roughly the same over time. The <a href="https://bitcoinwisdom.com/bitcoin/difficulty" rel="nofollow">difficulty has increased rapidly in the last few months</a>, and in fact it has nearly doubled since November 2015. This matches with your performance numbers. Your existing hardware will become less useful over time.</p>

CC BY-SA 3.0
2016-01-13T20:23:03.597Z
2016-01-13T20:23:03.597Z
Greg Hewgill
<p>I’ve been using two <code>AntMiner S5 ~1155Gh/s</code> and was able to mine about 0.02 Bitcoin.
 However, recently I’m just able to about 0.01 Bitcoin.</p>

<p>I use F2Pool for mining. I thought first the other one isn’t working but it does.
Does anyone know what is going on here?</p>

CC BY-SA 3.0
2016-01-15T08:21:11.293Z
possible duplicate: [Why does mining profitability tend towards zero?](http://bitcoin.stackexchange.com/q/2154/5406)
Murch
<difficulty><mining-profitability><antminer>
I'm not able to mine as much Bitcoin as I was able to a couple of months ago
Kaikoko
# I'm not able to mine as much Bitcoin as I was able to a couple of months ago

(Asked by: username_0 on 2016-01-13)

I’ve been using two `AntMiner S5 ~1155Gh/s` and was able to mine about 0.02 Bitcoin.
However, recently I’m just able to about 0.01 Bitcoin.

I use F2Pool for mining. I thought first the other one isn’t working but it does.
Does anyone know what is going on here?

**Tags:** difficulty, mining-profitability, antminer

> **Comments:**
> **username_1**: possible duplicate: [Why does mining profitability tend towards zero?](http://bitcoin.stackexchange.com/q/2154/5406)  

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## 1 answers

### Answer by username_2 on 2016-01-13. Score: 3

As more people contribute to mining, Bitcoin automatically adjusts the ["difficulty"](https://en.bitcoin.it/wiki/Difficulty) so that the number of new bitcoins created by mining is roughly the same over time. The [difficulty has increased rapidly in the last few months](https://bitcoinwisdom.com/bitcoin/difficulty), and in fact it has nearly doubled since November 2015. This matches with your performance numbers. Your existing hardware will become less useful over time.


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