Howdy!
Thanks for sharing this information! I Just wanted to make a few quick call outs. We do not have any outstanding known bugs with Render Device Lost errors occurring with the new 2000 series using factory settings but we are always keeping an eye out for any trending issues. I would like to clarify Overwatch does not support overclocking hardware, none of our games do so this is a good workaround for anyone tweaking system settings.
Thanks again for taking the time to post this information.