Archive for the ‘Mining Hardware’ Category

gawminers-vaultbreaker

GAWMiners has just released some interesting information, their plans to start offering what they call the world’s first 500 MHS Scrypt ASIC miner, and on top of that it will be powered by sub-1000 Watts power supply. The Vaultbreaker and its brother, the smaller 250 MHS Vaultbreaker Mini – for the compact enthusiasts – are the first of a new line of Scrypt ASIC machines GAW will release. Shipping time for the first batch is apparently planned for the end of Q3, or early Q4, with the company promising that they will try to beat the KnC Titan to market. The pre-orders for the new Scrypt ASIC miner should start today for existing customers and after that, they will be opening up the doors to the public at large on the 24th. The price for the pre-order is currently set at $8999.95 USD or $4999.95 USD for the Mini, so cheaper than the other competing products that do currently promise lower hashrate. There is no information what the ASIC chips inside the miner will be, but with this kind of performance promised at sub 1000W power consumption you can guess that we are talking about 28nm chips or even less…

For more information about the new Vaultbreaker Scrypt ASIC miner you can check GAWMiners website…

antminer-bm1382-chips

BitMain and their 55nm BM1380 SHA256 ASIC chip and the miners that the company has released based on it are quite popular and now the company has announced that they are ready with their new 28nm ASIC chip – the BM1382. As you can already guess the new chips will be offering higher performance at a lower power consumption, so you can get more powerful miners with the same size and power usage as the previous generation with the help of the new chips. The track record of the company is so far very good thanks to the fact that they are not using pre-orders, but ship from stock and announce products when they are ready for shipping, so you can get them fast at a good price and start hashing right away.

BM1382 has achieved 15.75 Gh/s in hash performance, consuming less than 9.33 W on chip level at 0.75V. This means 0.59 J/GH on chip. If the core voltage is at 0.63V, the efficiency will be 0.40 J/GH on chip. BM1382 will bring the power efficiency of Bitcoin mining industry to a new level which has not been massively achieved before. BM1382 represents a 20% power saving on its previous generation of 55nm chips and nearly 10 times of better physical densification, which will further improve the safety of the decentralized ecosystem.


BitMain BM1382 chip specifications:

– Process Node: 28nm
– Package Type: FCQFN-56
– Packaged Chip Size: 8mm x 8mm
– Number of Cores: 63
– Core Voltage: 0.75 V
– Core Frequency: 250 MHz
– Hash Rate: 15.75 GH/s
– Power Consumption: 0.59 J/GH (chip level, and it can be lower to 0.40J/GH by lowering the core voltage)

antminer-s3-miner

The first devices that we already expect to be available, probably by the end of this month, from BitMain based on the new BM1382 ASIC chips will be the AntMiner S3 miners. Devices, that will follow the design of the very popular AntMiner S1 blade miner. According to BitMain each S3 should be using 32 BM1382 chips and be able to provide a hashrate of 504 GHS with a power consumption of about 390W from the wall. So this is close to almost 3 times the hashrate of the old S1 with pretty much the same power consumption, not bad at all, but we also need to see this coupled with an attractive price. The new S3 miners have the potential to become a great option for smaller miners that want to be able to mine Bitcoin or other SHA-256 crypto currencies.


AntMner S3 Specifications:

– Effective Hash Rate: 504 GH/s±5%
– Power Consumption: 390 W on wall
– Power Supply: 4 +12V DC input, PCI-e connectors
– Power Efficiency: 0.77 J/GH on wall
– Size: 331 mm x 137 mm x 160 mm (Dual blades assembled inside a box, including the fans)
– Fans: Two 14038 fans mounted on both front and back ends.)
– Operating Temperature: 0 °C to 35 °C
– Complied with: FCC / CE
– Network Connection: Ethernet

We don’t know what the exact price will be, but considering that the company is able to offer 1 THS miner based on the 55nm older chips for a price of $1850 USD at the moment, the half of that hashrate and smaller and easier to produce new AntMiner S3 ASIC miners should be not more than lets say $750 USD, but that is actually a bit expensive. They need to be sold at a price of about 1 BTC or even less in order to become really more interesting for the users and to offer a foreseeable return of investment and some profit for the miners.

zeusminer-blizzard-1

The ZeusMiner Blizzard Scrypt ASIC also available as the GAWMiners Fury is a nice little device that comes at a really attractive price for the hashrate it offers. They are the ideal choice for smaller miners that want to get a Scrypt ASIC miner, but don’t want to spend too much for it… and quite a lot of people like that already have purchased these devices. Being so attractive with their current prices and performance of about 1.3-1.4 MHS it is no wonder people are also interested in modifying them for even higher performance. The simpler thing that you could do is to try to improve the cooling with the addition of some heatsinks directly on top of the 6 ASIC chips to get a little more headroom for increasing the operating frequency with lower number of HW errors. The more complex thing is to try to do a voltage modification in order to allow for the chips to have no trouble operating at higher frequency.

People that have used or still use the smaller 5-chip Gridseed Scrypt ASICs and have done a voltage modification to them knwo that these small miners were able to handle a significant performance increase without trouble. The reason for that was the fact they they were originally designed to be used for mining both LTC and BTC, thus they could handle higher voltage and operating infrequence easily if you only used them for Scrypt mining. The case with the ZeusMiners however is not the same, it seems that their miners are already pushed quite high in terms of power usage and operating frequency not leaving you with much headroom for experimenting. Voltage modification of a ZeusMiner Blizzard or GAWMiners Fury is possible and can be done with the replacement of resistors just like on the Gridseed ASICs, however the advantage you can get in terms of hashrate increase is not going to be that attractive so that a lot of people would be willing to do it. There is a topic on the Bitcointalk forum where people are trying to modify their devices and are reporting some useful information and their experience and results, so you might want to check that out if you are interested.

To see the topic at the Bitcointalk forum about Fury/Blizzard tuning and mods…


top