New 14.6 drivers cause ~ +10*C (290) temp increase. What's the point? X11 coins were made to work fine under 80*C at 30*C+ ambient in Summer.
Now we draw more electricity, overwhelm cards just like before with Scrypt.
The most optimal solution is to have stable drivers + extracted AMD dll's, minus 0.3-0.4Mh (280x-290)
With decent airflow, my 290 rigs didn't go up that much, they're still running ~72C which isn't terrible, but the fan speeds have gone up quite a bit. Still nowhere near how scrypt was cooking them. Get some box fans maybe? haha