Hello. Someone know why my cards mining the Half? In eth its mining just the Half. I used in the past a beta of crimson and i can minning in 22 Mhz. With the last adrenaline (or crismon), i am mining jsut the half (10.5) Why?

and, i am mining with nicehash (LyraV3) and i mining the same with old or new drivers. So the problem is the ETherum.

What happed?

RX 470 4GB Gigabyte: 21.000 Mhz
RX 470 4 GB Sapphire 24.000 Mhz
RX 570 8 GB Asrock: 23.000 Mhz

This.. the half :/