No all intel cpu's are fatory set to go to 105 degrees C - I'm not saying you EVER want to go anywhere near that but they can do it (and throttle the crap out of themselves). No idea about AMD - never owned one
My old Q6600 sat at 95 deg all day everyday in my old rig and its still alive and kicking
I remeber when CPU's didnt even have heatsinks or fans, no temp reading and to OC was via dip switches, you could check the temp of a CPU by touching it!!!!