Huawei Kunpeng 920 is a 7nm 64-core Armv8 Server Processor

We’ve seen several Armv8 processors for the datacenter launched in recent years from companies like Cavium – now part of Marvell – and Ampere. Another company now joins the fray with Huawei having just introduced their Kunpeng 920 64-core Armv8 processor manufactured with a 7nm process, and offering 8-channel DDR4 RAM, and fast interfaces such as 10GbE and PCIe 4.0.

Huawei Kunpeng 920
Images Source: Rick Merritt – Click to Enlarge

Kunpeng 920 features and specifications:

  • CPU – 64x Armv8 cores clocked at up to 2.6 Ghz delivering a 930 SPECint score
  • Memory I/F – 8x DDR4 @ 2933 MHz for 6 to 8 channels memory
  • Storage – 16x SAS/SATA interfaces
  • High Speed Interfaces – 40x PCIe 4.0 including 16 that can be used for CCIX (Cache Coherent Interconnect for Accelerators); 640 Gbps total bandwidth
  • Networking – 2x 100G RoCE (RDMA over Converged Ethernet)
  • Process – 7nm process

Kunpeng 920 Benchmark

The company customized their ARMv8 cores in order to improve performance by optimizing branch prediction algorithms, increasing the number of OP units, and improving the memory subsystem architecture. Beside the 25% performance improvment, Kunpeng 920 is also 30% more efficient compared to competitors.

The company also announced three new TaiShan series servers based on Kunpeng 920: one focusing on storage, the other on high density, and the latest on balancing both requirements. The servers are designed for big data, distributed storage, and Arm-native application scenarios.

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