Are these temperatures all right for my video cards?

I have two cards: Sapphire R9 299 tri-X OC and Sapphire Nitro+ Rx 580. Both of them have quite high temperatures when under load (Ethereum mining), but the fans set on auto don't go up too high. They sit at 44% and respectively 22%. Is that normal? Should I just raise the fans threshold and will this affect power consumption and/or wear level drastically?
Screenshots below.

 

Thank you!

 

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