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Select Page 1 - Introduction 2 - Bitcoin Performance - Fastest to Slowest 3 - Bitcoin Performance - Sorted by Price 4 - Bitcoin Performance - Sorted by Wattage 5 - GPUz Screenshot Gallery 6 - Conclusion Bitcoin mining is a new form of virtual money. The economics of it are fascinating, but the real interest for us is that you can use your GPU to accelerate the mining process, and you ll be shocked at the difference between NVIDIA and AMD GPU performance. If you want to setup a Bitcoin box, this article will get you moving in the right direction. Introduction Bitcoin mining is a new, kind of underground start up, of a system of virtual currency used to buy goods and services over the Internet that is gaining in popularity. Before you turn away thinking you ve landed on the wrong website, this is still HardOCP, and this does relate to video card performance. I m not going to sit here and try to explain the whole economy of Bitcoins to you, quite frankly it is beyond the scope of thisBelow are statistics about the Bitcoin Mining performance of ASIC hardware and only includes specialized equipment that has been shipped.

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GPUs, CPUs and other hardware not specifically designed for Bitcoin mining can be found in the Non-specialized_hardware_comparison. Notes: Mhash/s = millions hashes per second (double sha256 raw speed performance; may not be very energy efficient with some models) Mhash/J = millions hashes per joule (energy efficiency; 1 joule of energy is 1 watt during 1 second: 1 J = 1 W*s) W = watt (maximum power consumption, i.e. energy per unit of time: 1 W = 1 J/s) Be sure to research any of these vendors and machines intensely before spending any money. Bitcoin double SHA256 ASIC mining hardware Product Advertised Mhash/s Mhash/J Mhash/s/$ Watts Price (USD) Currently shipping Comm ports Dev-friendly AntMiner S1 180,000 500 800 360 299 Discontinued Ethernet GPL infringement AntMiner S2 1,000,000 900 442 1100 2259 Discontinued Ethernet GPL infringement AntMinerMining is the process of adding transaction records to Bitcoin s public ledger of past transactions. This ledger of past transactions is called the block chain as it is a chain of blocks. The block chain serves to confirm transactions to the rest of the network as having taken place. Bitcoin nodes use the block chain to distinguish legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.

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Mining is intentionally designed to be resource-intensive and difficult so that the number of blocks found each day by miners remains steady. Individual blocks must contain a proof of work to be considered valid. This proof of work is verified by other Bitcoin nodes each time they receive a block. Bitcoin uses the hashcash proof-of-work function. The primary purpose of mining is to allow Bitcoin nodes to reach a secure, tamper-resistant consensus.

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Mining is also the mechanism used to introduce Bitcoins into the system: Miners are paid any transaction feesGPUs are based on SIMD (single instruction, multiple data) architecture, where hundreds of threads can execute the same program in parallel, operating on different input data. Thus, the difficult task of feeding billions of input data vectors into SHA-256 is now spread out over hundreds of GPU cores.

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Surprisingly, Nvidia cards are all but unsuitable for Bitcoin mining because SHA-256 is an all-integer algorithm. While Nvidia cards (at least some of them) may rule the roost when it comes to floating-point performance, they lack some integer instructions that are sorely needed for SHA-256. Thus, when similarly-priced graphics cards from Nvidia and AMD are compared, the Nvidia cards are typically slower by a factor of five to seven. This makes them utterly unprofitable for Bitcoin mining. Bitcoin mining is an application segment where AMD Radeon cards shine undisputedly. Once very popular among Bitcoin miners, but now somewhat dated, the Radeon HD 5830 card boasts 1120 stream processing— Top nav — News – Companies – – Exchanges – – Merchants – – Wallets – – Investors – – Funding – Technology – – Mining – – Bitcoin Protocol – – Bitcoin ATMs – – Altcoins – – Cryptocurrency 2.0 – Regulation – Events – BitLicense – Prices – Crime – – Silk Road – Features – – Opinion – – Data Analysis – – Reviews Price & Data – Bitcoin Price Index – Bitcoin Venture Capital – Bitcoin Network Statistics – Bitcoin Calculator – About the BPI – Bitcoin ATM Map – CoinDesk API – Bitcoin Price Ticker Widget Guides – What is Bitcoin? – Why Use Bitcoin? – How Can I Buy Bitcoins? – How to Buy Bitcoin in the UK – How to Store Your Bitcoins – What Can You Buy with Bitcoin? – How to Sell Bitcoin – How to Accept Bitcoin Payments – How do Bitcoin Transactions Work? – Is Bitcoin Legal? – Who is Satoshi Nakamoto? – How Bitcoin Mining Works – How to Set Up a Bitcoin Miner – What are Bitcoin Mining Pools? – How Does Cloud Mining Work? – Calculate Mining Profitability – How to Make a Paper Bitcoin WalletThe bitcoin network is a peer-to-peer payment network that operates on a cryptographic protocol. Users send bitcoins, the units of currency, by broadcasting digitally signed messages to the network using bitcoin wallet software. Transactions are recorded into a distributed public database known as the block chain, with consensus achieved by a proof-of-work system called mining . The block chain is distributed internationally using peer-to-peer filesharing technology similar to BitTorrent. The protocol was designed in 2008 and released in 2009 as open source software by Satoshi Nakamoto , the pseudonym of the original developer or group of developers. The network timestamps transactions by including them in blocks that form an ongoing chain called the block chain.

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Such blocks cannot be changed without redoing the work that was required to create each block since the modified block. The longest chain serves not only as proof of the sequence of events but also records that this sequenceRadeon GPUs are recommended over Nvidia, they are much more efficient at mining. You can still mine with an Nvidia card, but your hashrate (essentially how fast your card can process the algorithm) will be lower.

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Check out this link to compare the expected hashrate for scrypt mining on various hardware: For AMD cards: Download the client from min-coin.org. For Windows, you’ll want to click on one of the top two links. Once finished downloading, install and run. The first time you fire up the client it will need to connect to the network, and download the blockchain. While it’s downloading, a green bar on the bottom will show its progress. Once finished, a green check mark will appear in the bottom right of the window. Now it’s time to configure the GUIMiner client. Locate the ‘guiminer.exe’ executable in the directory you extracted to and start it up. Note: If GUIMiner fails to start, you likely have an issue with dependencies, IE, either the AMD.

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