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It seems that Gridseed might be working on a new even larger Scrypt ASIC miner, or that is what got as information from a reader that sent a link to publication on a new mining forum called MinerTalk. From the apparently leaked photos of the new miner published there we can see that it is a larger box miner with integrated PSU and a LAN network interface. There are still no specifications available and no information what ASIC chips will the device use.
The miner seems to have 5 PCBs or modules with chips inside and there are only three small fans. On the second photo we can see that the chips on the modules are small, similar to the Gridseed GC3355 ones, though these might be new chips as well. Judging from the size of the chips and the miner we can assume that the miner should be capable of something like 25 MHS or 50 MHS even more in terms of hashrate (5-10 MHS per module). Though there is no information about actual specifications, so these are only assumptions for the moment.
The software bfgminer 4.0.0 has been released and now the latest version does come with official support for Gridseed-based ASIC devices built-in, among a lot of other new features and improvements. The miner is intended for mining Scrypt and SHA-256 crypto currencies and the biggest advantage is the support for many ASIC miners, though most of these are still for Bitcoin mining and not for Scrypt. If used for Gridseed ASIC mining the advantage here is that you don’t need to replace the virtual USB to COM drivers with WinUSB or to send as parameters the COM ports for the ASIC devices to the miner – they will be autodetected. Below you can download the compiled windows binaries for the miner (32 and 64-bit) and be sure to check the example BAT files for running on Gridseed ASICs or just for Scrypt mining with a GPU. You can also compile bfgminer from source if you are using other operating system for example.
KnCMiner has revealed some more additional details about the chips that are going to be used in their upcoming Scrypt ASIC miners, the now already expected to provide a hashrate of 300 MHS Titan. It seems that each KnC Titan will will have four Scrypt ASIC chips in order to make sure they’ll output the guaranteed minimum performance of 300 MHS. Each chip will have 2284 cores that will be able to run 18272 threads simultaneously and will have 300MB of onboard memory. And since we are going to have 4 chips in each miner, this means that each Titan will come with 9136 cores running 73088 threads in total and resulting 300 MHS of Scrypt hashrate.
KnC says they were able to squeeze all of that in a 55 mm x 55 mm package while simultaneously extracting over 300 Watts worth of thermal energy, so it will be interesting to see how will they be able to cool these units. This however means that the total power consumption for a 4 chip Titan could go up to 1200W. According to KnCMiner the final tape out of the chips should happen within the next few weeks, or with other words the miners are not going to be ready to ship in Q2 and early Q3 is probably way too optimistic… so maybe something like August or September seems like a reasonable expectations. The price of the 300 MHS KnCMiner Titan Scrypt ASIC miner is still $9995 USD without VAT.
With all that said we are already seeing Scrypt-based ASIC miners using the Innosilicon’s A2 28nm chips to be already on sale and apparently shipping. And while these are more expensive and go only up to about 80-90 MHS, they can be further scaled up with more modules, the problem that remains however is that they come pretty expensive, though you can get them without having to wait them on pre-order. So it will be very interesting to see how will things progress on the Scrypt ASIC market in the next few months. Zeus is also expected to start shipping their first batch of 55 nm Scrypt ASIC miners in just 5 more days, so these should be able to fill in the gap between the smaller Gridseed’s GC3355-based miners and the Innosilicon A2-based big miners.