All About BTC, LTC, ETH mining as well as other alternative crypto currencies
A user called ghostlander on Bitcointalk has released a new optimized OpenCL kernel for the Myriad-Groestl algorithm that is supposed to give you at least 10% increase in performance compared to the public kernel available, but in reality the hashrate increase is much more significant. We have tested the new kernel with a Radeon R9 280X GPU and got over 31 MHS while with the latest sgminer kernel we have managed to get only about 10 MHs or with other words about 200% increase using intensity of 19. You can try to increase the intensity a bit more if your GPU manages to handle it ot squeeze a bit more extra performance as well over 19. So if you are mining a coin using the Myriad-Groestl such as DigiByte or Myriad on AMD hardware you should definitely consider upgrading the kernel (just replace the old .cl file with the new one) to get a lot of extra performance and increase your hashrate.