Is that a typo? Oh, it’s not a typo. Ampere really is touting an 80-core 64-bit 7nm Arm server processor dubbed Altra

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Is that a typo? Oh, it’s not a typo. Ampere really is touting an 80-core 64
Meanwhile, Marvell offers a 36-core chip, Xilinx whips out an FPGA-based Sm
SPARCs fly as Oracle recharges Arm server processor designer Ampere with $4
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Ampere will today tear the covers off Altra, its 80-core 64-bit Arm N1 processor for cloud and hyperscaler servers.
Meanwhile, Marvell announced additions to its Octeon TX2 family of Arm microprocessors, including a 36-core 64-bit Arm part, and Xilinx will tout its Alveo U25 network card.
Ampere’s Altra: This TSMC-fabricated 7nm-node server-grade microprocessor features up to 80 64-bit CPU cores, arranged in a grid-like cache-coherent mesh, consuming up to 210W per package.
Interestingly, Ampere was keen to push its single-thread performance: this is not a processor design that has two or more hardware threads running simultaneously through each CPU core, like AMD’s Epyc SMT.
SPARCs fly as Oracle recharges Arm server processor designer Ampere with $40m READ MORE
We’re told there is 64KB of L1 instruction and data cache per Altra core, 1MB of L2 cache per core, and 32MB of shared L3 cache, plus two 128-bit SIMD execution units, all on the monolithic silicon die.
Each processor sports up to eight 72-bit DDR4-3200 memory channels running above 200GB/s and addressing up to 4TB of RAM per socket: that’s four, six and eight active channels with two DIMMs-per-channel at 3200MHz. The mesh design ensures uniform memory latency across the CPU cores, Ampere told us.
In terms of performance, Ampere claimed an 80-core-per-socket dual-socket Altra overclocked to 3.3GHz is on a par with a 2.25GHz 64-core-per-socket (128 threads per socket) dual-socket AMD Epyc 7742, in terms of estimated SPECrate2017_int benchmarks.
Ampere assured us Altra can boot the usual main GNU/Linux distributions – Ubuntu, CentOS, Red Hat, SUSE, Debian, and so on – plus FreeBSD and Windows Server.
“We have full hardware mitigation for Spectre and Meltdown designed into Ampere Altra,” Wittich replied.
The CN913x family that features four stock Arm Cortex-A72 CPU cores clocked up to 2.2GHz, with 48KB of instruction and 32KB of data cache per core, two blocks of 512KB L2 cache, and 1MB of L3 cache

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