For our temperature testing, we measure the peak GPU core temperature under load. A reading under load comes from running the 3DMark Time Spy stress test for 30 minutes.
Temperatures have also increased slightly for the RTX 3090 Eagle OC, when compared to the RTX 3080 Eagle OC. Not by much, but peak temperature is 2C higher. This is still a very solid result however, especially considering the RTX 3090 is rated for 350W, yet its core temperature remained below 70C at all times.