I've hit 75k antutu and overclocked gs6s have broke 81k so the numbers are not to far off given that arm said a72 cores will be 20-60% faster then the older cores.
Here is my gs6 on second firmware hitting 72k I got 75k on original and knew my cell got a little slower after the update but I never saved the screen shot. View attachment 574308
Out of interest - How do you overclock ? And could that potentially really damage the hardware ? You must have nerves of steel - I'm intimidated by rooting and losing warranty let alone going that far.