I use MSI afterburner personally but u can use Catalyst that comes with the card
Also try scaling up the intensity slowly to see where ur sweet spot is.
Aha...the Catalyst Control Center does not show a temperature, but the command
# aticonfig --odgt
shows
Default Adapter - AMD Radeon R7 200 Series
Sensor 0: Temperature - 72.00 C
Jeepers, that's...161 F. Should I be worried?
How do I increase the fan speed?