For our memory temperature testing, we measure the peak memory temperature under load. A reading under load comes from running Cyberpunk 2077 for 30 minutes.
Likewise, memory thermals are absolutely fine, with the GamingPro hitting 68C. The Gigabyte Aero OC does run 4-6C cooler depending on the BIOS used, but this won't make much – if any – difference in the real world.