MSI 470 8GB Micron Memory 28.5MH/s

Hello.

I have an MSI 470 8GB with Micron memory.

Unfortunatley there is no way to return the card so I am making do with what I have.

I can achieve the following stats using my current configuration on claymore dual miner:

• Dual Mining DCR+ETH ≈ 28.6MH/s & 770MH/s @ ≈130W ===> 4.55W per MH/s
  
• Dual Mining DCR+ETH ≈ 27.6MH/s & 810MH/s @ ≈120W ===> 4.34W per MH/s
  
• Mining ETH ≈ 27.2MH/s @ ≈90W ===> 3.31 W per MH/s
  
• Mining ETH ≈ 28.6MH/s @ ≈100W ===> 3.5W per MH/s
  

I was wondering if this is a good power to MH/s ratio? What should I be aiming for?

Here is a screenshot of my miner running Claymore Dual Miner ETH+DCR:



Thanks in advance.