you don't understand how they measure.

a single chip with test leads  can do 30J/TH

this gear is doing 50th at 2050 watts on = normal speed  that is 41J/TH

you are doing turbo numbers  to mine on turbo speeds gives you  a little more hash and burns power like mad.

so this gear does 41J/TH using the  fans and controller  on normal speed.  I suspect fans and controller are at least 100 watts

so it is  doing about 1950/50th = 39J/TH on normal speed

In what seems like a million years ago bit fury shows its chip in a single chip setup  it did 60J/TH  which when built into a  big machine did about 100J/TH

Turbo should never be used at the moment with current coin prices.

Normal speed should be used at the moment with current coin prices.

But I am sure some can create an example that shows turbo is smart to do at the moment.