Nvidia has now officially released a new Hotfix drivers that should fix the VRAM clock issues seen on the previously released Geforce 375.86 drivers.
In case you missed it, plenty of users from Nvidia Geforce forums reported issues
with the recently released Geforce 375.86 WHQL drivers that were including memory clock issues on Geforce GTX 1080, GTX 1070 and GTX 1060 graphics cards.
While there were also some other issues with Call of Duty: Infinite Warfare and Battlefield 1 games as well as Folding@Home, Nvidia has only managed to fix the low memory clock issues that was apparently limited to certain factory-overclocked Pascal graphics cards.
Hopefully, the next big driver update from Nvidia will fix the rest of the issues but in case your memory clock is stuck at 810MHz, you should update with the new Hotfix driver available at Nvidia's support page via link below.