The Washington Post interviewed Jeremy Hilton, D-Wave's vice president of processor development. Jeremy has been at the company since 2000.
Right now, we [Dwave Systems] have a 1000 qubit processor in our lab. Dwave has a plan to release it later in 2014. The major thing that's changing aside from some of the design details is the scale of the problem you can represent, going from a 500-variable graph to a 1000-variable graph. Complexity of that is growing tremendously. [It leads to an] unimaginable exponential blowup of the number of solutions. That scale of problems is getting that much harder for classical algorithms to solve.
[After that] we're planning to release a 2000-bit processor design. That's pushing into a scale of territory where we're tackling problems that are very difficult for people to solve [with conventional methods]. The community is working on getting a few qubits to work at the scale they're trying to work at.
Dwave saw that between that 128 qubit and 512 qubit, there was a 300,000x improvement in performance. That kind of performance gain is really unprecedented.