- #Amd radeon hd 7670m 1gb vs md phenom ii x4 945 3.0 ghz install#
- #Amd radeon hd 7670m 1gb vs md phenom ii x4 945 3.0 ghz software#
Specifications and speeds of many graphics cards are displayed by users in tables on various portals. The main and the most expensive component of a mining farm conducting calculation of hash functions of the blocks. The power supply capacity should be chosen with a margin of 150-200 watts, considering the power consumed by other components except the graphics cards. The main engine of the whole farm, so the choice must be done carefully and without hasty conclusions.
#Amd radeon hd 7670m 1gb vs md phenom ii x4 945 3.0 ghz install#
It is needed to install the OS and to store wallets, so a simple flash stick fits. Size from 4Gb, the simplest and cheapest one. This is why the cheapest one is chosen, which fits the motherboard. Its capacity is not needed for the scrypt mining of Litecoin and its forks. It should not be cheap and have 4 or more PCI-e slots (for graphics cards).
The main components of the farm are nearly the same as those of a regular computer, with several exceptions: Mining farm with well-designed cooling How mining farm works But NVIDIA has a “Tesla S2070” card, which gives 700 Kh/s, however its price is $1360 against $510 for the most powerful cards by AMD. For comparison – the most capable NVIDIA graphic cards have a capacity of ~150 Kh/s, AMD has 1500 Kh/s. NVIDIA graphics adapters, due to their design features, are currently less capable and make farm building several times more expensive than with AMD solutions. It turns out that in this example a GPU can process 800 (or 400 (with AVX)) times more instructions per clock, than CPU.Įven despite that since 2011 the CPUs have been produced with 6, 8 and 12 cores and clock speed of nearly 2000-3000Mhz and more, a Radeon HD 5970 GPU (with clock speed of 750 MHz) remains more than 5 times faster than four 12-core CPUs with clock speed of 2.3 GHz (while the price of the latter around $4700, in contrast to $350 for HD5970). One CPU core executes 4 32-bit instructions per clock (SSE) or 8 32-bit instructions per clock (AVX), whereas a Radeon HD 5970 GPU is able to process 3200 32-bit instructions per clock (using its 3200 ALU or shader unit). The graphics adapter (GPU) is able to carry out many similar tasks very fast and effectively, but at the same time it switches to another task slowly. Also, the processor performs a great number of other operations. The processor (CPU) was developed to make decisions according to the programs’ directions. Now let’s make it clear the why the graphics card (GPU) fits scrypt mining better than the central processing unit (CPU).
#Amd radeon hd 7670m 1gb vs md phenom ii x4 945 3.0 ghz software#
The scrypt mining or GPU mining is not like Bitcoin mining because of algorithm differences.įor mining of Litecoin, as well as its various forks on the scrypt algorithm, this article will discuss the important technical characteristics, as well as hardware compatibility, software and the most popular software – the miner, in particular the most stable and flexibly configurable CGMINER. This is why the mining of the scrypt cryptocurrencies started gaining popularity. For comparison, one ASIC unit on average had a capacity of 600000 Mh/s, and the most powerful GPU - ~850 Mh/s. It all led to the fact that SHA-256 crypto currency mining without special equipment ceased to be profitable (Bitcoin is the most profitable crypto currency based on SHA-256 algorithm for mining). This was also caused by the fact that many large investors began to buy ASIC equipment for Bitcoin mining on an industrial scale. 5 Characteristics of central processing units (CPU mining)Ĭomparison of mining algorithms SHA-256 and Scrypt mining ĭue to popularity growth of Bitcoin at the end of 2013, the mining difficulty has increased for many times.4.2.13 Characteristics of NVIDIA graphics cards for mining.4.1 The most profitable AMD graphics cards for mining.
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