My 950 PRO was idling at ~46C and maxing out at 65C under heavy stress test.
I installed the Advancing Gene NVMe M.2 SSD Cooler Heatsinks with 20mm Fan
https://amzn.to/2J0RS0G My idle temps are now 42C and maxing out at 56C. So that's a pretty good improvement.
Note that I run my case fans at a very low 700-800 RPM to keep the noise down. I'm sure if I bumped up the airflow in the case, the temps would be even better. But for me, this is a good balance of noise vs temps.