• Tenstorrent Connects to Developers Through Wormhole

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    Tenstorrent’s new Wormhole AI accelerator (NPU) is a development platform like its predecessor. Among upgrades to the earlier Grayskull, Wormhole adds Ethernet for chip-to-chip interconnect. It should helps Tenstorrent develop an ecosystem for a next-generation NPU. continue reading


  • Reliability Plagues Intel as Raptor Defects Emerge

    It's all about the Pentiums music video screencap

    CPU instability indicates Intel’s 13th and 14th Generation Core (Raptor Lake) processors have defects affecting reliability. How the company addresses the problem will tarnish or burnish its reputation. continue reading


  • What Do You Want to See from XPU.pub?

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    Thanks for reading this and my other notes. Extra gratitude to those who have signed up for my newsletter. Looking at the list, I think I know half of you! Here’s a hint at what I’m planning to do next and a request for you to send me ideas. continue reading


  • AMD Zen 5 Raises IPC, Speeds up Math and AI Processing

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    AMD’s new Zen 5 CPU boasts a 16% IPC increase over Zen 4, with significant performance gains in math-intensive tasks owing to doubled AVX throughput. A tighter physical design allows for similar die size despite increased cache and wider execution units. The new microarchitecture widens both the front end and back end and will be… continue reading


  • Why Should MediaTek Enter Server CPU and NPU Market?

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    MediaTek is developing an Arm-based server processor and an associated data-center AI accelerator (NPU) according to Taiwan’s Economic Daily (經濟日報). The thinly sourced article states the TSMC-fabbed 3 nm chips will begin production in 2H25. But is the story believable? continue reading


  • SoftBank Acquires Beleaguered Graphcore

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    Graphcore was among the first companies to address data-center AI acceleration and raised more than $700 million. It reported revenue of $10 million in 2019 but less in subsequent years. Sequoia Capital wrote down its stake in 2023, discouraging other investors from pumping in more cash to carry Graphcore through its incubation phase. Willing to… continue reading



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