Since yesterday (aug . 8th), yacoin network is on nFactor 19 where each hash consumes 128MB of memory.
Next switch is after three years - in october 2020.
My CPU hashing speed has fallen from 6->2 hashes/second (per CPU thread).

I am waiting for new GPU platform so currently I am unable to test GPU mining speed.
Can any of you comment how are GPU cards doing (compared to nFactor 18)?