285k: https://www.intel.com/content/www/us/en/products/sku/241060/...

Max Operating Temperature: 105 °C

14900k: https://www.intel.com/content/www/us/en/products/sku/236773/...

Max Operating Temperature: 100 °C

Different CPUs, different specs.

And any CPU from the last decade will just throttle down if it gets too hot. That's how the entire "Turbo" thing works: go as fast as we can until it gets too hot, after which it throttles down.