Here's a Yakuza Zero PS4 demo walkthrough running at 1080p/60fps
A demo version of Yakuza Zero is available in Japan, and below is a video showing over one hour of gameplay running at 1080p/60fps on PlayStation 4.
It's obviously in Japanese, so unless you understand the language you'll just have to figure out what's going on through visual cues.
The PS3 and PS4 game lands in Japan on March 12 as a prologue to the main series set in 1988.
Thanks, AGB, via Japanese Entertainment.