It depends on your definition of quantum computing, the D-Wave does
http://en.wikipedia.org/wiki/Quantum_annealing and has been faster in some applications.
https://plus.google.com/+QuantumAILab/posts
They're just getting started, this field is very new, very difficult, and there are a lot of very smart people trying to answer the what/how/why/where/when of "quantum" computers.
The hardware outperforms off-the-shelf solvers by a large margin
"In an early test we dialed up random instances and pitted the machine against popular of-the-shelf solvers -- Tabu Search, Akmaxsat and CPLEX. At 509 qubits, the machine is about 35,500 times (!) faster than the best of these solvers. (You may have heard about a 3,600-fold speedup earlier, but that was on an older chip with only 439 qubits." [1]
[1] https://plus.google.com/+QuantumAILab/posts/DymNo8DzAYi
