I am sure it cools fine with gaming, desktop use etc. But I doubt it be able to mine at 100% gpu usage and not need additional cooling. At least thats if you dont mind running you card into the ground at 90-100 degrees
I get uncomfortable if any of my cards get much above 70 and I like to keep them in the 60s
You can mine at higher clocks than you can game at! At least I can! So, I'd have to believe this is <= gaming!
Also, gaming should be 99% GPU usage too! So, should produce the same temps at the same voltage!