pawelblyskal
arestavo
Also, I'm not a thermoengineer, but without a backplate the backside of you VRMs actually cool BETTER than a card with a backplate since those had an air gap between the PCB and backplate - which makes for poor thermal conductivity. Without a backplate to begin with, your card is cooled better on the backside!
^ This I just had to laugh, as stated before, with the thermal pad fix the back plate now acts as an additional heatsink.
Hard facts then?
My 1080 ACX 3.0, which I've removed the backplate from, has the VRM temps running at 60C on the VRM solder joint posts sticking out the back. 60C off of the metal bits that connect directly through the PCB to the VRM section.
Your card has a smaller 4+1 power delivery system and 170W TDP compared to my 1080s 5+1 and 180W TDP.
I tested this by looping Valley at 2202MHz/11,114MHz and measuring with a wireless IR gun.
Granted, your card may run hotter if you don't have very good case airflow.