Google to use RISC-V for its custom AI silicon — TPU to get open source compute core: Report

SiFive
(Image credit: SiFive)

SiFive expects to earn $240 million to $280 million in licensing revenue and new lifetime contracts in 2024, according to documents seen by Bloomberg. The revelation may indicate that the company is on track to sign another major contract with Google to supply processor core designs for its tensor processing units (TPUs), believes The Register.

Bloomberg indicates that IP provider SiFive pins a lot of hope on a 'second-generation chip for artificial intelligence servers' without elaborating, but this could be a major revenue driver for the company. Although SiFive can license its RISC-V cores to virtually everyone, The Register speculates that the IP developer is set to license its X390 core to Google, which is poised to use it for its next-generation TPU.

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Anton Shilov
Contributing Writer

Anton Shilov is a contributing writer at Tom’s Hardware. Over the past couple of decades, he has covered everything from CPUs and GPUs to supercomputers and from modern process technologies and latest fab tools to high-tech industry trends.

  • bit_user
    Google's current-generation TPU already uses SiFive's X280 general-purpose core to feed data to Google's matrix multiplication units or, as SiFive puts it, accelerate the accelerator.
    Yeah, they're basically just acting as embedded cores that feed & manage the specialized units responsible for shouldering the real compute burden.

    This is a big deal for SiFive, but it's not a breakout moment for RISC-V. It's not Google using RISC-V to run its generic cloud services. That would be truly momentous.
    Reply
  • SunMaster
    I still think it's an important moment for Risc-V. For one reason or the other it has been chosen over the competition. Be it price, power consumption or whatever, but there is a reason it was chosen,.
    Reply