Hi, I’m no expert in the technology but this is a vital part (IMHO) of improving UX - also, as a permanent migraine sufferer, a tear-free experience goes a long way. I have not tested 17.10 in depth to see this by default so I apologise for leaping in here when it may be a non-issue.
Having said that, the information from these links helped me correct screen tearing in 16.04 using Intel, AMD, and nvidia graphics on four separate machines:
Intel / nvidia
http://askubuntu.com/questions/667466/screen-tearing-in-ubuntu-with-nvidia-intel-graphics
Intel
https://wiki.archlinux.org/index.php/Intel_graphics#Tear-free_video
AMD