700 sol/s is a good mark for stock clocks, last time I did constant 810 sol/s with my 1080Ti Aorus at 2.0GHz boost core clock / 12GHz memory oced, 85% tdp, temps at 50-60 Celsius, fans at 100%.
810 sols/s
that doesnt sound real. What was your the add to you core clock? Most cant go over 100 or 120 at 100% TDP. Overclocking the RAM does nothing really for mining Zec. If you set it to 0 instead of negatives it can sometimes boost it slightly. Sounds like you are remembering incorrectly your values, as stock values will generally bring the most sols on an Auros card as they don't have much room to overclock and memory doesn't really effect it that much. I generally couldn't get over 740 on an auros regauardless of settings and I own 3 of them.
Might depend on which Aorus, and certainly would depend on luck in the silicon lottery.
I routinely see my Aorus push a little over 2 Ghz boost clock with 100% (250 watt) TDP setting and +100 core/+200 memory OC in Afterburner.
Temps for me are higher - 68-70C with around 80% fans - but my room it's in is fairly warm ambient.
FE cards have poor cooling compared to pretty much ALL of the aftermarket options, it limits them noticeably (not by a HUGE amount, but noticeably).
Many GTX 1080ti use ONE 8-pin and ONE 6-pin for power, they don't ALL use 2 x 8-pin.
You WILL have to have 12 power connectors of SOME sort to run 6 of them in a single rig though.
DGB IS on WhatToMine - in all 5 options under the "individual coin" listings, the Scrypt and SHA256 options are in the "ASIC" compare page (not sure on the Qubit option as I don't have a Baikal), and I think the Groetsl option is in the GPU compare page.
You'd have to ask the author of the page why he prefers to ignore Skein over less popular stuff like Pascal - he just said "I don't have space" when I asked him about adding Skein to the compare.