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According to SiFive, the P870 is roughly equivalent to an ARM X2 or AMD Xen 4, so it's about two or three generations back from the Cortex X925. I've yet to se

According to SiFive, the P870 is roughly equivalent to an ARM X2 or AMD Xen 4, so it's about two or three generations back from the Cortex X925. I've yet to see a catalog part w/ that core, but the guys I know at SiFive say they're pretty sure it should hit 3GHz, which is cortex X2 territory. Not exactly ARM's current best, but they're definitely closing the gap. One difficulty in evaluating SiFive's cores is their business model is to license their designs to companies who are fabbing their own custom or semi-custom SoCs, so they don't appear in generally available parts until much later.

brucehoult 2y ago
Where can you find an Arm SBC with a Cortex X925? Or even anything better than an A76, announced May 2018? (Pi 5, Rock 5, etc) Which implements ARMv8.2-A from 2016. Yes, I know ARMv9 cores are available in high end phones running Android. But not, that I know of, in SBCs or laptops running Linux. We've got several different RVA22+Vector (latest spec, ratified March 2023) RISC-V cores, SoCs, SBCs and laptops on sale right now, with much faster ones (P670, A78-class) coming around the end of the year.