The D-Wave design is for quantum annealing, which is still super interesting and solves practical problems, in particular optimization problems. You can read a

The D-Wave design is for quantum annealing, which is still super interesting and solves practical problems, in particular optimization problems. You can read a few summaries of the different systems and how they were compared to classical computers at launch in Wikipedia[0]. For a quick tl;dr: D-Wave computers can speed up certain optimization problems, but more than a few times it's been in doubt if they provide an advantage over classical computers or not (notice that a few times they compared against single threaded systems). [0] https://en.wikipedia.org/wiki/D-Wave_Systems#Computer_systems https://en.wikipedia.org/wiki/D-Wave_Systems#Computer_system...