Honestly I could not tell you if thats optimal. I have only been doing this for a week or so. Just trying to share what information I have. Those were the hash rates when I looked before my last post. Just checked again hash rates are about the same as earlier. That is why I included what model and settings I am using. I would assume there will be some differences between models. I have 3 each of asus 1080 turbo and asus 1080 rog strix ordered I am curious to see how they compare to what I currently have.