Biggest Probabilistic Computer Turns Noise Into Answers with One Million P-Bits

Biggest Probabilistic Computer Turns Noise Into Answers with One Million P-Bits

I explore how a new machine built from 18 FPGAs creates the largest probabilistic computer yet, featuring one million p-bits. This breakthrough solves complex optimization problems by harnessing correlated noise rather than avoiding it. Unlike quantum computers, this programmable system scales effectively across multiple chips without needing global synchronization, paving the way for arbitrarily large machines that tackle stochastic challenges standard computers cannot.

Systems combining CMOS with dense stochastic memory technologies such as MRAM offer one of the most compelling paths forward.
  1. teleforce

    The original paper by Çamsarı and his team, also linked from the OP article [1].

    [1] Programmable Probabilistic Computer with 1,000,000 p-bits:

    https://arxiv.org/abs/2606.25313

  2. petra

    There's also digital probabilistic computing, with a processor working on AWS, and for the right workload ,claimed to be offering a very significant speed boost:

    https://www.eetimes.com/probabilistic-computing-is-already-h...

    Towards the end of the article.

  3. RiverCrochet

    > In contrast, p-bits flip between 0 or 1 with a tunable probability.

    Isn't this basically an ADC (except the tunable probability isn't an input voltage)? Is this kinda-sorta a new form of analog computing?

More from this day

2026-07-20