I am not so sure. I don't understand work well but there have been a couple papers saying they can get a quantum speed up on factorizing using adiabatic quantum computers [1]. Further, Geordie Rise himself said that they have an algorithm that can run on a dwave system that can beat shors algorithm [2]. A more skeptical take is here [3].
Scot Aaronson does understand this work very well, and he mentions several times (with citations) that there is no widely accepted proof or disproof that a quantum speedup will ever exist for quantum annealers.
[1]. http://www.diva-portal.org/smash/get/diva2:680572/FULLTEXT01...
[2]. https://dwave.wordpress.com/2011/05/11/learning-to-program-t...
[3]. https://www.newscientist.com/article/dn21699-controversial-q...