For this benchmark, a lower number is better. From previous tests I’ve performed, I’ve seen much lower Sunspider numbers. I suspect these results are due to a combination of older hardware, Windows 10 still being unfinished, and of course the fact these are beta browsers.
Chrome Canary started off OK:
Firefox Nightly was noticeably slower:
Microsoft Edge beat them both:
This is the only test Edge won, and it did so in style.