In a nutshell: Ampere Computing has expanded its Arm-based server CPU portfolio with the launch of the AmpereOne M processors. First announced last year, this new lineup introduces six SKUs, with the flagship model featuring a 192-core chip that supports 12-channel DDR5 memory.
The AmpereOne M family uses a 7228-pin FCLGA socket and packs between 96 and 192 custom single-threaded Armv8.6+ cores, running at speeds of up to 3.60 GHz. The processors feature up to 64 MB of system-level cache and 2 MB of L2 cache. Designed for cloud data centers and AI workloads, these processors support one ECC-protected DIMM per channel and can handle up to 3 TB of DDR5-5600 memory.
The flagship AmpereOne A192-32M boasts 192 cores running at 3.2 GHz with a 346W TDP. The rest of the lineup includes:
- AmpereOne A192-26M: 192 cores at 2.6 GHz
- AmpereOne A160-28M: 160 cores at 2.7 GHz
- AmpereOne A144-33M: 144 cores at 3.3 GHz
- AmpereOne A144-26M: 144 cores at 2.5 GHz
- AmpereOne A96-36M: 96 cores at 3.6 GHz
The AmpereOne M CPUs support up to 96 PCIe Gen 5 lanes, with bifurcation options down to x4. They feature 24 controllers, enabling connectivity for accelerators, networking cards, NVMe storage devices, and other components.
Built on TSMC's N5 process node, the AmpereOne M upgrades the existing AmpereOne lineup, offering support for up to 8TB of 8-channel DDR5 memory and 128 PCIe Gen 5 lanes. Other specifications remain similar, including a core count ranging from 96 to 192, 2MB of private L2 cache per core, 64MB of system-level cache, clock speeds up to 3.7GHz, and TDPs between 200 and 400W.
Ampere notes that its new CPUs incorporate several advanced power management features to boost efficiency while maintaining the performance required for high-performance computing. These include Advanced Configuration and Power Interface v6.4, Adaptive Voltage Scaling, Dynamic Voltage Frequency Scaling, and precise thermal monitoring and power provisioning.
Ampere plans to release the AmpereOne MX next, featuring up to 256 cores and 12 DDR5 memory channels. Announced in May 2024, the next-gen processors will use TSMC's N3 process to improve performance and power efficiency. While it's unclear whether they will incorporate a new microarchitecture, Ampere claims the CPUs will deliver 40 percent more performance than any competing model.
AmpereOne M CPUs launched with 192 Arm cores, 12-channel DDR5 memory, 96 PCIe Gen 5 lanes
