With these advancements in WebKit, the Preview outperforms Chrome (stable version) as well as Chrome Canary by reaching a score of 19090. In comparison, stable Chrome and Chrome Canary scored 17214 and 15539 respectively. These numbers should be taken with a grain of salt though since they are rarely an accurate representation of real world performance where Chrome simply outshines its competitors.
Users can download and run Safari Technology Preview along with the stable version of Safari on their Macs. Unlike the Webkit nightlies, users get complete iCloud integration (reading list, favorites, synced tabs etc) with the Preview so they can test it out as their daily driver too.