It's not particlarly powerful by modern standards. The processor in question is an ARM Cortex M33, which is available with single or dual 32-bit cores, at clock

It's not particlarly powerful by modern standards. The processor in question is an ARM Cortex M33, which is available with single or dual 32-bit cores, at clock speeds of 150 to 240 MHz. But when Doom was first released, a typical PC would only have run at 66 MHz.