Abnormal Sols/watt on one GPU - Only 50% TDP

[r3lentleSs]

On one GPU --> GPU4 is generating over 5 Sols/Watt running @ 50% TDP
Set in Afterburner to 70% pow limit.
The other GPU's run @ 70%, this one @ 50% and generates same Sols

http://prntscr.com/hkct4z

How is this even possible ?

[umine]

It seems the GPUs are GTX1060. What are the models do you use? That hashrate could appear because of you are very lucky with this GPU4. Great chip. But temperatures are the same for all GPUs as I see. So it also can be miner bug 

[halker2010]

On one GPU --> GPU4 is generating over 5 Sols/Watt running @ 50% TDP
Set in Afterburner to 70% pow limit.
The other GPU's run @ 70%, this one @ 50% and generates same Sols

http://prntscr.com/hkct4z

How is this even possible ?

are these all the same brand ? i have one of my 1070s doing the same by giving around 10-20 percent less hashrate than others the thing i found out by testing was that i used separate molex and 8 pin pcie cable for it and it worked.

[r3lentleSs]

I have the p106-100 cards.
All the same brands.
I have 36 of them cards.
All the other ones run around @70%
This one @ 50 with same hashrate.