What is the hash rate on gtx 1060 3G on last version? Does it affect on speed 3G and 6G card version?
I just tested a (borrowed) Gigabyte GTX 1060 G1 Gaming 6GB version 1 (no coil whine btw)
at 80W TPL i get 262 Sol/s Stock (no OC)
at 90W TPL i get 248 Sol/s Stock (WTF?? more power consumption less hashrate? ,crazy!)
i cannot test below 80W TPL because my driver is a little old, but i wouldn't be surprise that at 70W TPL the card will perform better and hash more

What i didn't like it's the temperature, 64 C (core) at 80W TPL, WHAT??, My GTX 1070 G1 Gaming barely gets over 57 C at 90W TPL.
Also the backplane is so hot that you can barely touch it.
I don't have a 3GB version but it should be 10% less hashrate, not less. (because of less cuda cores).
Test done on Lubuntu 1404, Cuda 8, driver 367.44.