90C up to 1.0Ghz
95C for the 1.2-1.1ghz.
These are max-rated DIE temperatures. Unfortunately, there's no way any end-user can easily measure these. THey have to rely on the craptacular socket-thermistors to "measure cpu temp"...
Due to compression factors, for most boards, 55C with probably the limit between stability and instability(and probably darn close to 90-95C die temp). It is a bit warmer, say 60C or so for an A7V 1004 Bios or later.
These numbers aren't absolute, htey're just general observation numbers.
Mike