I am testing a RX VEGA 64 8gb Sapphire Nitro for mining ETC.
I read an article that says that:
"Core Voltage (VDD) 850 Power Limit Watts: 210 or Percentage: 70%
Core Clock (CClock) Absolute: 1050 or Offset: 0
Memory Clock (MClock) Absolute: 2200 or Offset: +1100"

Using MSI Aftburner, the maximum memory clock value I can set is 1243.
Why do you think this happens? What can I do?