This is the quote I was refering to:
"Memory bandwidth:
RX480: 256 GB/s
390X: 384 GB/s
ZEC uses a lot of memory operations. Do you still think that RX480 can work as fast as 390X?"
"Memory bandwidth:
RX480: 256 GB/s
390X: 384 GB/s
ZEC uses a lot of memory operations. Do you still think that RX480 can work as fast as 390X?"
Reduce memclock almost twice to 1100 MHz on RX 480 - and you'll see that hashrate reduced only 200 -> 160 h/s.
And Memory controller load still only 50%
