I recently bought an used GTX 1060 6GB, betting that it would make 23~24MH with 90w that is nicehash profit calculator, but…
i had no lucky buying it, after googling why my 1060 got so much low hashrate i found this thread, and here go my conclusion:
there are two types of 1060 6gb, no metter if your memory is the same brand of the other guys, your card wont make same hashrate because it can be GDDR5 or GDDR5X and some are GP104 and other GP106 chip.
If you got an GP104 GDDR5X i have bad news for you… your card wont pass 18MH at max.