For our temperature testing, we measure the peak GPU core temperature under load. A reading under load comes from running Cyberpunk 2077 for 30 minutes.
With the RTX 4060 Ti using the same cooler as the RTX 4070, but on a lower-power chip, it's not a surprise to see better thermals from the newer GPU. It peaked at 62.6C, with the hot spot result at 75.5C, making it 2-3C cooler than its bigger brother.