Quote Originally Posted by Junos View Post
You're forgetting that RV770 actually has a spare unit to disable (too lazy to pick up the link, but I'm right), if the core slightly fails (840SPs, 40SPs are disabled = 800SPs). So they may have been collecting succesfull cores for RV775 and use them later on.
There are redundant (spare) SPs on RV770. There are no redundant TMUs.


Also, the die size would not change if that were the case.