RX 580 Stress Testing

[rpmbarrinhos]

I have an RX 580 Dual series. I decided to overclock it so i ran MSI Afterburner and Kombustor. After some overclocking the temperatures were sitting at around 70.
74 was the max i got.
My question is if its by any chance good, should i not overclock as much. Ill only be playing GTA V and CS GO max settings so... Any answer is appreciated

If it helps, i was on youtube watching a video at 720P. Don't know if it matter but i just thougth i should say it

 

[jankerson]

Those temps are fine.