I was lol. My card went to 1975 boost out of the box. I get 2076 max boost with the fan silent no noise at all even at 100% fan speed.

I am currently running at +105 core and +530 memory voltage and power maxed with the FTW ACX 3.0 standard cooling setup.. I know if somehow there was an unlocked voltage, I could easily get 150 600 possibly. Both will run either one set but not both and not without error after maybe 20 min of hard gaming like Project Cars at 8k resolution High and ultra settings. Unbelievably, it runs any daytime track full race at 35 fps solid with slighting dipping to 30 fps. It's quite realistic as well as playable. and feels more sim like with a good wheel. Anywho Here is my time spy score that verifies my clock speed which does usually maintain 2114 mhz and higher. This timespy score reflects 2,126 mhz and the 1,385 mhz memory which is 11,080 mhz effectively.
 
Guess I cant share the link and screenshot file size exceeds the dinky 500KB file size limit.... Oh well dbLIVEdb is my 3d Mark name anyone who needs proof of the speed this card is capable of.
 

2 EVGA 1080GTX SC in SLi with GPU 3.0 L/H
Easy game sits 1708 - 1823
Med 1748 - 1911 no lower
Hard game max 1961-2012 no lower
Super hard game 1987-2012 no lower
i7 6850k 3.6@4.3+  6/c12t/15mb cache 32GB G Skill PC OC 3000 OC PC3150
2x 480 SSD 6GB SATA RAID O
32 games max out in game as the goal was fps at 125-144 or better sync up to 144 refresh rate 140-144fps
Almost all did sync 140s
Only 4 games did under 100 FPS 
BTW no HB bridge yet

Got mine to +100 GPU and +500 memory, but backed it down to +75 GPU and keeping it at +500 memory. Running cool with MSI Afterburner at no more than 75C in games like Rainbow Six Seige, ARMA 3, Aces High 3, Need for Speed.
 
Antec 1200 V3 Tower Gaming Case
Antec 850w PSU
ASUS ROS Maximus VII  Motherboard
i7 4790k clocked to 4.6 GHZ
Corsair H80i V2 Water cooling
16g Gskill Trident X PC2400 Ram
EVGA GTX 1080 SC Video Card
Samsung EVO 850 500g SSD
Hitatchi 2T 7200rpm HDD
Dell S2716DG 1440p/ 144hz Gaming Monitor (w/Gsync)