35ºC you must live in north pole...
i think rx460 could do similar results. I'm getting 11.8 mh/s out of the box. no oc, no bios.
I put my rigs in refrigerator )) I did unlock, overclock and bios on rx460. I could get only 14.5 mh/s for Solo mining. On dual they are very unstable.
But, RX560 are better in performance and stable.
Epoch #22? When was that, 2 years ago?