GoKawiilArm unveils Neoverse CSS N4 'Ranger' with up to 128 cores on TSMC N3P
Arm has introduced its next-generation Neoverse CSS N4 semi-custom compute subsystem, codenamed Ranger, built on TSMC's N3P process node. The platform allows cloud and chip partners to configure between 8 and 128 Arm Neoverse N4 cores per die, clocked up to 3.8 GHz, with support for DDR5 or LPDDR6 memory, up to 256 MB of L3 cache, and 128 lanes of PCIe 7/6 or CXL 4.0.
GoKawiil's interpretation of the reporting above, not reported fact.
This marks a major jump over the previous Neoverse CSS N2 generation, which capped out at 64 cores and far less cache and I/O bandwidth, signaling Arm's push to compete more aggressively in hyperscale cloud and AI infrastructure chips. Because CSS is a semi-custom licensing model already used by Microsoft Azure, Google Cloud, Nvidia and Intel, this upgrade could quickly propagate into a new wave of custom server and DPU silicon with higher core density and performance-per-watt.
- Neoverse CSS N4 scales from 8 to 128 cores per die on TSMC's N3P process.
- It doubles socket performance and boosts memory bandwidth 1.75x versus Neoverse N3.
- Semi-custom CSS licensing lets cloud providers and chipmakers tailor cores, cache and I/O for their own silicon.
Raspberry Pi 5 (8GB) Single Board Computer — Arm's Neoverse cores power the cloud, but the easiest way to tinker with Arm compute on your desk is a Raspberry Pi 5. Its quad-core Arm CPU runs full 64-bit Linux, making it a great sandbox for building and testing Arm-native software before it ever hits a server rack.
See Raspberry Pi 5 (8GB) Single Board Computer on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: tomshardware.com — Jake Roach, 2026-09-08
Published there as: “Arm debuts next-gen semi-custom Neoverse CSS N4 ‘Ranger’ platform — compute subsystem packs up to 128 cores per die on TSMC N3P”
Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.