by Bitmain Bitmain AntMiner S5 - 1155Gh/s ASIC Bitcoin Miner What do customers buy after viewing this item?Best Selling • Top Rated 3 Model B Quad Core CPU 1.2 GHz 1 GB RAM Motherboard 528 Lowest Price Bitcoin: The Future of Money?65 8 Product details Product Dimensions: 29.8 x 13.3 x 15.6 cm ; 2.9 Kg Boxed-product Weight: 3.4 Kg Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.Find out more about our Delivery Rates and Returns Policy Item model number: S5 ASIN: B00RCTIY4G Date first available at Amazon.co.uk: 26 Dec.2014 Average Customer Review: (3 customer reviews) Amazon Bestsellers Rank: 100,647 in Electronics (See Top 100 in Electronics) in Computers & Accessories > Servers If you are a seller for this product, would you like to suggest updates through seller support?Product description Building upon the foundation from the S1 and S3, the Antminer S5 retains the same small form factor of previous miners, but, with the more efficient BM1384 chips.

The S5 uses 1 fan for quieter home operation and features multiple improvements over the strong S3 design.1 micro bitcoin to usdChip Specifications: BM1384 Bitmain's 3rd generation Bitcoin mining ASIC, the BM1384 provides significant improvements over the previous BM1382 chip.bitcoin get raw blockHashrate per mm2 at voltage 0.75V has been increased over 20% while reducing power consumption by 30%.apple bitcoin riftThis improvement is the result of months of hard work and investment in the Bitcoin ecosystem.bitcoin paling banyakSpecifications - Hash Rate: 1155 GH/s ±5% - Power Consumption: 590 W (at the wall) - Power Efficiency: 0.51 J/GH (at the wall) - Rated Voltage: 12V - Dimensions: 298 mm x 137 mm x 155 mm - Cooling: 1x 12038 fan - Operating Conditions: 0 °C to 35 °C - Network Connection: Ethernet See questions and answers Customer Reviews 3 5 star 1 4 star 1 3 star 0 2 star 0 1 star 1 See all 3 customer reviews Top Customer Reviews Amazon Customer Report abuse Mark Deeley Report abuse Faris Sheridan Report abuse See all 3 customer reviews (newest first) on Amazon.co.uk (beta) (May include reviews from Early Reviewer Rewards Program) 69 reviews to see all 69 reviews Were these reviews helpful?litecoin increase

Let us know Search Customer Reviews Look for similar items by category Computers & Accessories > Serversbitcoin atm 1000Conventional techniques in energy-efficient computing navigate a design space defined by the two dimensions of performance and energy, and traditionally trade one for the other.bitcoin pool profitabilityGeneral-purpose approximate computing explores a third dimension, error, and trades the accuracy of computation for gains in both energy and performance.most legitimate bitcoin exchangeBy relaxing the need for fully precise or completely deterministic operations, approximate computing techniques allow substantially improved energy efficiency.ethereum gift

A team at the University of Illinois flagship campus recently published a paper that details how this technique can boost a bitcoin miners profits by 30%.Led by Associate Professor of Electrical and Computer Engineering, Rakesh Kumar Ph.D., the three authors of “Approximate Bitcoin Mining” claim that the 6-page paper is the first to explore hardware optimizations, specifically approximation based optimizations, unique to Bitcoin mining.Approximation is not a new idea, and has been used in areas such as lossy compression and numeric computation.John von Neumann wrote a paper on it in 1956, “Probabilistic logic and the synthesis of reliable organisms from unreliable components.” This new paper states that Bitcoin mining is intrinsically resilient to errors, “its parallel nature minimizes the propagation of errors, and Bitcoin’s distributed verification system detects and invalidates any potentially erroneous solutions.” Using approximation, they illustrate a more efficient way to go about processing the SHA-256 hashing algorithm that Application-Specific Integrated Circuit (ASIC) chips use during the bitcoin mining process.

ASIC chips are currently the most efficient hardware for mining Bitcoin.To calculate profitability, the authors chose to test a commercial ASIC Bitmain BM1385.The chip has a hash rate of 38.8 Ghash/s and power consumption of 10.2 W at nominal frequency and voltage.The paper considered mining yield, hash rate, power consumption and cost of electricity.Variations of three different approximate adders were also examined; Ripple-Carry Adder (RCA), Carry-Lookahead Adders (CLA), and Kogge-Stone Adder (KSA).As an important arithmetic module, the adder plays a key role in determining the speed and power consumption of a system.The conclusion derived from the test is that a particular design of KSA, namely 16-bit KSA, can raise profits by 30%, “15% from functional approximation and 15% from operational approximation.” The authors cautioned that there are many unsuitable approximate adder designs for Bitcoin mining, including 8-bit KSA, which would lead to an unprofitable hashing core error rate.

Security consultant Sergio Demián Lerner, prior to leading the development team at Rootstock, also described how SHA-256 ASICs can be faster using approximation, on his blog in 2015.Lerner suggested and discussed a different type of adder in detail, called a Carry-Reduced CLA adder (CR-CLA).He also mentioned KSA as a possible candidate.but admitted that he had “not yet attempted to analyze the resulting designs.” - Sergio Demián Lerner, Security Consultant The Bitcoin mining network currently earns around US$1.5 million each day, a figure that includes the bitcoins mined and the transaction fees gathered by all miners, multiplied by the market price in US dollars.The amount of total revenue a miner earns is far more heavily dependent on the price of a bitcoin.“When the price goes up, there's more confidence in mining, and [mining equipment makers] go and design the next-generation chips," BTCC chief executive officer Bobby Lee said in an interview with Bloomberg Business.