# Questions tagged [hashpower]

The hash rate is the measuring unit of the processing power used to secure the Bitcoin network.

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### How harder is it on average to find a block with one more zero in its hash?

If the size of the block hash, the one that has to be below a certain value, is fixed (256b, right?), and finding a hash with one more bit set to zero is, I suspect, twice as hard, and Moore's law (...
376 views

### The probability of block generation by two miners in a special case?

If network would include 2 mining pools (pool_1 and pool_2) with the hashpower of 49% and 51%,respectively, then wo want to calculate the probability that in 10 minutes, exactly 2 blocks would be ...
263 views

### The probability that the entire network generates at least two blocks within 10 minutes?

We know that Bitcoin network on average generates one block per 10 minutes. Is there a formula to compute the probability that the entire network generates at least two blocks within 10 minutes by ...
157 views

### Is it possible to know the total hashpower backing a currency?

Is it possible to know the total hashpower backing a currency? My goal is to know how much hashpower is backing each currency. I don't know if it's possible, if so, how?
277 views

### Electric power efficiency - why is increases so fast

How were the Antminer hardware made to decrease electric power consumption by half with each new product, like at the current generation of S9? What are the projections to future efficiency that can ...
1k views

### what is the relationship between bandwidth and hash rate?

What is the relationship between bandwidth and hash rate? I have an AntMiner S4 mining at 2.1GHashes. I understand that the miner has no hard drive, and does its operations purely in memory, and that ...
9k views

### How do I calculate expected earnings when mining a cryptocurrency? [duplicate]

If I have access to currency-specific variables/datasets for any cryptocurrency of choice (see below), how would I calculate which cryptocurrency (out of a fixed set of say 3-5 altcoins -- SHA-256 and ...
1k views

### Hashrate comparison for multiple hash algorithms

My question is about the hashrate obtained with same hardware (non-ASIC) on many algorithms. For example, I've read that Scrypt-N is about half the hashrate of Scrypt. Is that true for all hardwares? ...
75 views

### Are there any post BTC halving hashrate prediction markets?

Are there any futures markets that allow predictions of post BTC halving network hashrate?
3k views

### A hashrate of 1.42 EH/s, really?

According to http://bravenewcoin.com/news/number-of-bitcoin-miners-far-higher-than-popular-estimates/ there are 100,000 miners and blockchain.info claims a hashrate of 1.42 EH/s. How is it possible ...
90k views

### Solo mining just for luck, realistic?

Just turned my attention to mining and the concepts are quite new to me. First of let me be clear: I realize that my hardware setup is far from ideal for mining. This is also the reason why I do not ...
66 views

### Merchant tool that will dynamically adjust the # of required confirmations based on network hashrate data

Satoshi built Bitcoin to be a decentralized network. Some of the original recommendations (such as waiting for 6 confirmations) relied on statistics that related to level of decentralization. https://...
44k views

### I've tried everything from mining bitcoin to litecoin to other altcoins…why do I have no luck?

I am a beginner in the blossoming culture of crypto-currency, and unfortunately, it's beginning to feel as if 2015 is too late of a year for a laptop-user such as I to be able to start mining. I'm ...
294 views

### What are the possible Doomsday scenarios for the 2016 Halving from 25 to 12.5 BTC per block solved?

The 2016 halving is coming from 25 to 12.5 BTC solved for every block. For us to understand the effects. What are some possible doomsday scenarios that can happen?
557 views

### Mathematical areas of research within the Bitcoin field?

I'm doing my IB math SL internal assessment on bitcoins. We have to incorporate a lot of math into a 6-12 page essay on our topic. What parts of Bitcoin involve or can be modeled by mathematics, such ...
4k views

### Very poor cgminer result on EC2 GPU with litecoin

I have started to test mining litecoin on amazon for the fun of it . I used this link to start going, so I use cgminer. every thing went pretty fine, just that I had to use cgminer 3.0.1 to aligned ...
1k views

### ASUS X1650 256 MiB - is it sufficient? [duplicate]

Just learned about BitCoin. As I learned now there is no sense using CPU, just GPU. I have ASUS X1650 256 MiB, is it sufficient to ear at list 1-2 BitCoin a week?
168 views

### Is possible to control the network? [duplicate]

Can anyone with enough computing power, take over the network ? This is following from a previous comment where I was asking : ... how can that be possible (to control the network) if mining tend ...
6k views

### Hashrates for Opteron and Xeon CPUs

I'm looking for the benchmarked hashrates of both a 1.0GHz Opteron 2007 CPU, as well as a 1.2GHz Xeon 2007 CPU. I looked here but didn't see them mentioned. Also, on that references page, I don't see ...
160 views

### How can I look up how much ASIC Miner has mined in the last week?

I can see a list of their most recent blocks here: http://blockchain.info/blocks/ASICMiner, but is it possible to get aggregate numbers over a given time?
217 views

### Measuring levels of spammer participation on the Bitcoin network

Is there any reliable way of estimating the number of spammer controlled miners? I was thinking about the common wisdom that BitCoin should have been implemented with a hashing mechanism that is ...
196 views

### In order to send more hashes for mining do you need to connect into a bigger mining pool?

After the rate at which you can generate hashes, what determines the rate at which you can send hashes to be checked? I'm guessing connecting into a bigger pool would help spread your load?
189 views

### What is meant by “we are approaching a step change in bitcoin mining”

On a comment on this answer: https://bitcoin.stackexchange.com/a/9494/4173 The following was said: "However, what you need to consider is that we're approaching a step change in bitcoin mining with ...
456 views

### Is there a site (or formula) that easily calculates returns using difficulty / hash rate? [duplicate]

I'm just a novelty miner, looking to be cool and do my part to decentralize. Not looking for a return on my investment. However if I'm going to spend \$100 or so I'd like to calculate how my options ...
3k views

### litecoin mining very slow

I recently heard about litecoin and thought it would be a good alternative of bitcoin as it is "faster" with less requirement. however, I noticed that any attempt to mine litecoins is significantly ...
1k views

### PCI-E v1 2 and 3 differences in mining?

Is there any difference in hashrate if I mine from mainboard with pci-e v1 v2 or v3. Also is there difference if I use x1 slot with extension to x16?
733 views

### Hash rate for litecoind is way below the one I get for bitcoind, is this normal?

I'm running bitcoind on an Ubuntu EC2 image in the Amazon cloud; on another identical image I'm running litecoind. I compiled both of these on the bitcoind instance. According to the getmininginfo ...
17k views

### I was getting 7 mhash/s on GUIminer.. but only 0.3 on bit minter?

I'm really new to bitcoins. I have a good computer, cpu based at least. 8 core AMD processor with 4 ghz a core with decent amount of cache. I wanted to make some extra money and use my computer to get ...
2k views

### If Bitcoin mining is becoming more and more impractical, what then?

If Bitcoin mining is becoming more and more impractical, where you'll need to buy like a ButterflyLabs unit, and where even eventually a room full of these units might not be enough some day, what ...
21k views

### How to work out my hardware's hashrate power

Using my existing hardware, I want to work out which altcoin is still profitable to mine. I have found this link: http://dustcoin.com/mining But don't know which values to enter into the boxes at ...
11k views

### How much are accepted shares on GUIMiner worth? [closed]

I have just started Bitcoin mining and am using GUI Miner. I have an AMD 7870 OC edition that is mining for me. Currently i'm getting 380 mhash/s, is this good? Also how many of the accepted shares ...
4k views

### High Hashing Power: Okay to solo mine? [duplicate]

I plan to hash at around 250-550 gH/s, would it be profitable to mine solo, or would I make more money joining a pool? Are there any unexpected occurrences that I should look out for when mining?
279 views

### Same setup different hash rate

I have one computer with windows 8.1 13.11 driver and a 280x which gets 720KHS and another computer with the same setup which gets 620KHS. They have a different cpu ram and psu (both have quality ...
9k views

### What is the conversion then for MH/s to GH/s and so on [duplicate]

I've seen this answer and maybe I'm just tired What is the difference between kH/s, MH/s, and GH/s? 1 kH/s is 1,000 hashes per second (sometimes mistakenly written KH/s). 1 MH/s is 1,000,000 ...
3k views

### Can i start mining with ANT MINER? [duplicate]

from here at little time, i'll get a ANT MINER to start mining bitcoins, and i want to know if i have some chance to get some coins with him. Brand: ANT MINER Model: BTC_1.6Gh/s Overclock: 2.2 Gh/s ...
238 views

### would 10 x 2TH/s machines give me the possibility to mine solo [duplicate]

Would 10 X 2TH/s machines give me the a heads up on pool mining or go solo mining obviously using different addresses on each machine, or one address prone to redundant work?
479 views

### Mining and Bitcoin Wallet [closed]

I have been mining for over 24 hours @ 97.3 Mhash/s. Shouldn't I have at least obtained .01 bitcoin by now? How do I verify the mining that I am doing is transferring into my Wallet?
2k views

### Can a Qubit Miner ASIC device be created and what would its impact be on the mining community?

With mining gaining in popularity every day and the raw power of the ASIC devices increasing at a dramatic rate, I wonder what is the next big jump for miners. Qubits, or quantum bits, have already ...
751 views

### Not generating any blocks on testnet

I am running bitcoind, and I have cgminer solo-mining on it. I am mining on Testnet3. My hash rate (this is an OLD computer) is ~800Khash/s, so according to one online calculator I should be ...
467 views

### What is the average number of hashes it takes to mine bitcoins?

I'm just curious about this. I'm not sure if the length of zeros in the hash result is directly proportional to the probability, or how to calculate this.
4k views

### Will more hashes per second increase bitcoins per hash per second?

I read this article: We have paid 0.034 BTC for the 10 GH/s ... Yesterday we have received our first daily payout and it was exactly 0.00041279 BTC ... Doing a quick calculation has shown that if ...
181 views

### How has mining evolved since the start of Bitcoin?

Can someone post a detailed description on how mining has evolved since the introduction of Bitcoin all the way till today? I mean quantity of miners, hardware used, profits made, ROI etc. I guess ...
515 views

### What's the minimum setup to mine a block alone? [closed]

What's the minimum setup that you guys know, that can, today, mine at least 1 block alone, without the use of mining pools? I know I wouldn't be able to afford it, but just by curiosity...
210 views

### why is the growth in the number of bitcoins not convex?

If I look at the chart below: https://blockchain.info/charts/total-bitcoins?timespan=all&showDataPoints=false&daysAverageString=1&show_header=true&scale=0&address= and I check the ...
205 views

### Does an increase in hash/s decrease the time it takes to obtain a block or does it increase the possibilities of solving one?

I am a total noob, and I've been reading the wiki for a long time and have yet to understand the basics... My question here is that if I were to mine at 100GH/s (example), is it guaranteed that I ...
482 views

### Hashrate falls by factor of 1000x when now block is found?

Very often my mining hashrate falls from the usual ~550 Mhash/s to about 400-500 khash/s, and I have noticed direct correlation in time with messages like these: btcguild.com:8332 25/04/2013 10:07:14,...
929 views

### Energy & performance comparison: GPU mining vs playing HD Video

Using the built-in ATI video card on my computer, I can mine at about a 30-50 MHps rate. I'm wondering, how does this amount of work compare to normal video card operation? Or how can it be calculated?...
64 views

### Proof of work - does the equipment matter?

It technically doesn’t matter whether I am using a super computer or a laptop to do the proof of work, it’s simply that with a super computer I can go through the attempts much faster, which means I ...