<p>it is now impossible for normal CPU/GPU to mine bitcoin, you need to get some ASICS or Gpus (e.g Rx480) and mine in a pool. of course you should buy devices with high Hashr power to increase your chances to get rewarded. Here is a simulator to check the potential profit you could make by determining your hash power : <a href="https://www.cryptocompare.com/mining/calculator/btc" rel="nofollow noreferrer">https://www.cryptocompare.com/mining/calculator/btc</a></p>

<p>some details about the mining pool and the network hashrate :</p>

<p><a href="https://btc.com/" rel="nofollow noreferrer">https://btc.com/</a></p>

CC BY-SA 3.0
2017-06-07T19:16:58.070Z
But theoretically can't my miner hit a block instantly by accident in just a few tries and get 25 BTC?
PedroD
CC BY-SA 3.0
2017-06-07T19:22:05.143Z
Yes, it could. But you're much more likely to win a lottery than the chance that that ever happens. Also, it's 12.5 BTC per block since the last halving.
Pieter Wuille
CC BY-SA 3.0
2017-06-07T19:15:22.337Z
2017-06-07T19:23:26.693Z
2017-06-07T19:23:26.693Z
Badr Bellaj
<p>For the little bit I understood so far about the mining process, it seems to me that "finding" a block is very very very difficult for a CPU/GPU.</p>

<p>However, since it is done by brute force, it seems to me that there is a very small chance (has anyone calculated how much?) of a single cpu miner to find a block very fast in a few first tries, hence hitting the jackpot of 25 BTC.</p>

<p>Is this theory correct?</p>

CC BY-SA 3.0
2017-06-07T19:19:43.270Z
Yes, there is a chance of mining a block with a CPU.  It's ***very*** small.  The calculation is pretty simple and you can see an example [here](https://bitcoin.stackexchange.com/a/52047/5757).
Nate Eldredge
CC BY-SA 3.0
2017-06-07T19:37:21.767Z
The "jackpot" is currently 12.5 BTC.   And remember that you pay for electricity (generally around $0.10 per KwH).  The cost of electricity to run your CPU/GPU will be much greater than your chance of making money.   I've never said this before, but you are literally better off playing the lottery than GPU mining.
abelenky
CC BY-SA 3.0
2017-06-07T21:18:50.223Z
@abelenky: Indeed, you are several thousand times better off playing the lottery.  With a lottery ticket you can expect to get maybe 50% of your stake back on average.  For CPU mining it's around 0.01%, if I did my calculation right.
Nate Eldredge
<mining-pools><mining-hardware><mining-profitability><miner-configuration><mining-theory>
Should we still mine nowadays with CPU/GPU?
PedroD
# Should we still mine nowadays with CPU/GPU?

(Asked by: username_0 on 2017-06-07)

For the little bit I understood so far about the mining process, it seems to me that "finding" a block is very very very difficult for a CPU/GPU.

However, since it is done by brute force, it seems to me that there is a very small chance (has anyone calculated how much?) of a single cpu miner to find a block very fast in a few first tries, hence hitting the jackpot of 25 BTC.

Is this theory correct?

**Tags:** mining-pools, mining-hardware, mining-profitability, miner-configuration, mining-theory

> **Comments:**
> **username_1**: Yes, there is a chance of mining a block with a CPU.  It's ***very*** small.  The calculation is pretty simple and you can see an example [here](https://bitcoin.stackexchange.com/a/52047/5757).  
> **username_2**: The "jackpot" is currently 12.5 BTC.   And remember that you pay for electricity (generally around $0.10 per KwH).  The cost of electricity to run your CPU/GPU will be much greater than your chance of making money.   I've never said this before, but you are literally better off playing the lottery than GPU mining.  
> **username_1**: @username_2: Indeed, you are several thousand times better off playing the lottery.  With a lottery ticket you can expect to get maybe 50% of your stake back on average.  For CPU mining it's around 0.01%, if I did my calculation right.  

---

## 1 answers

### Answer by username_3 on 2017-06-07. Score: 2

it is now impossible for normal CPU/GPU to mine bitcoin, you need to get some ASICS or Gpus (e.g Rx480) and mine in a pool. of course you should buy devices with high Hashr power to increase your chances to get rewarded. Here is a simulator to check the potential profit you could make by determining your hash power : <https://www.cryptocompare.com/mining/calculator/btc>

some details about the mining pool and the network hashrate :

<https://btc.com/>

> **Comments:**
> **username_0**: But theoretically can't my miner hit a block instantly by accident in just a few tries and get 25 BTC?  
> **username_4**: Yes, it could. But you're much more likely to win a lottery than the chance that that ever happens. Also, it's 12.5 BTC per block since the last halving.  

---

