This message was posted on behalf of Intel Corporation
Thank you for joining the Processors Community. I am sorry to hear you are having issues with this matter.
The behavior you are experiencing is expected, Intel investigated the issue and determined that the temperature variation is normal. You can find the official answer for this matter here: https://communities.intel.com/message/471425#471425
Thank you very much for the fast reply. I am happy to hear that this behavior is normal for this CPU as it will now allow me to go about without worrying. I have to add that I also managed to lower temperatures by lowering vcore voltages as the auto voltage ranges were way too high for the frequency. Motherboard manufacturers should adjust these to lower temps.
Thanks and happy new year,