There's a difference between "might hit the max turbo frequency for a millisecond under light load if the phase of the moon is just right" and "can sustain max

There's a difference between "might hit the max turbo frequency for a millisecond under light load if the phase of the moon is just right" and "can sustain max turbo indefinitely so long as adequate power and cooling are provided". AMD CPUs are the former, Intel the latter.