Worried about CPU temperature

[Sanko_bs 0]

Dears:

I am considering purchasing Tinker Board S R2.0 and am concerned about the CPU temperature rise.
When I operated my Tinker Board 2S under the following conditions, the CPU temperature reached about 70°C.
When Tinker Board S R2.0 is operated under the same conditions, how many degrees Celsius will it be?

- Turn on the power of Tinker Board S R2.0 and display the desktop screen for about an hour.
- The OS is Tinker OS (Debian10).
- Room temperature is about 25℃.
- The attached heat sink is used.
- Case not used.