[Zeik0s]

This usually shows up in the UEFI settings, where you can also toggle it on or off.

[dataflow]

Er, shouldn't I be able to look this up from the CPU model number without buying it?

Also, are you sure you're not confusing CPU-embedded TPMs with other TPMs in the system?

[mjg59]

It's up to your firmware to enable any CPU or chipset provided TPM implementation. The CPU supporting it is unhelpful unless the firmware provides a mechanism to turn it on.

[dataflow]

But my question wasn't "how do I check if the embedded TPM is being used?", it was "how do I check if an embedded TPM even exists?"

[mjg59]

It exists in everything x86 made since around 2014. Whether it exists usefully is up to your firmware.