Baikal Electronics is the most famous processor design company in Russia, using Arm or MIPS architecture to design, called the Baikal series. Last year, Baikal Electronics received the self-developed Baikal-M from TSMC and lit up the new 48-core Baikal-S
Renowned infrared photographer Fritzchens Fritz managed to get hold of Baikal-S and show its interior through an infrared microscope. Baikal-S is based on Arm architecture, with 48 Cortex-A75 cores placed in 12 clusters, each cluster has 4 cores, each core has 512KB of L2 cache, each cluster shares 2MB of L3 cache, plus 32MB of L4 cache. It has a base clock of 2.0 GHz, a boost clock of 2.5 GHz, a TDP of 120W, and can run in single-, dual-, and quad-socket systems.
Baikal-S is manufactured using a 16nm process, with a chip area of about 607mm². It is packaged in a F_C_LGA-3467 package. The package also contains a RISC-V architecture co-slave processor for secure boot and management. In addition, Baikal-S supports six-channel DDR4-3200 memory and ECC, with a maximum capacity of 768GB, provides five PCIe 4.0 x16 slots, two 1GbE interfaces, and various general-purpose I/O interfaces.
According to the official SPEC2006 CPU Integer, Coremark, Whetstone, 7Zip and HPLinkpack, and other benchmark test data, the overall performance is comparable to the Xeon Gold 6148 (20 cores/2.4 GHz) of Intel Skylake architecture, or the EPYC 7351 (16 cores/2.9 GHz) of AMD Zen architecture.