Against this backdrop, let's consider which of the following pure-play leaders makes the better quantum buy today: IonQ (IONQ +4.12%) or Rigetti Computing (RGTI -1.63%).

The case for IonQ Quantum computing doesn't rely on one method alone.

The case for Rigetti Rigetti, another pure-play quantum giant, uses a different technique than IonQ.

IonQ and Rigetti both offer compelling technology, and each has advanced in two areas key to the success of quantum computing: IonQ is delivering on accuracy, and Rigetti is crushing it when it comes to speed.

And that's why I think IonQ makes the better quantum computing buy right now.