Due to the rising hashrate of the bitcoin network caused by the introduction of ASICs to the market, GPU mining Bitcoins has become impracticable. The hashrate of most GPU units is below 1GH/s, and as of 2014, some single ASIC units are able to reach speeds of over 1,000GH/s while consuming far less power than used by a GPU. The information in this table is preserved for historical interest, but does not include many GPUs which were released after the advent of ASIC mining.
Starting with March 2017 data, Preliminary Monthly Electric Generator Inventory includes a comprehensive list of generators which retired since 2002. The list can be found on the 'Retired' tab of the datafile.
BITCOIN GENERATOR V 4.5 64 Bit
This drastic performance difference is mostly due to different parts of the process being CPU bound to varying degrees, particularly for BIP39 and Electrum seed recovery. As such shifting more processing in to the OpenCL and creating a more efficient seed generator will be future areas of work.
What this means is that in order to fill the maximum workgroup size for the GPU, the seedgenerator needs to pass it a chunk of possible seeds that is many times larger than the max workgroup size. (Eg: for a work group size of 1024, a BIP39 24 word seed will need 262,144 potential seeds)
My pain point is that every Sign-Up tool allows a different set of special characters. Some might only allow these @#$%&* while others maybe don't allow * but do allow other things. Every password generator I've come across is binary when it comes to special characters. It allows you to either include them or not. So I wind up cycling through tons of options and scanning for outliers that don't meet the requirements until I find a password that works. The longer the password the more tedious this becomes. Finally, I have noticed that sometimes Sign-Up tools don't let you repeat the same character twice in a row but password generators don't seem to account for this. It's madness!
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