Chinese Loongson Processor Uses Chiplet Design to Pack 32 Cores

Chinese processor designers need help creating a leading-edge design that satisfies their needs, with the imposed sanctions and restrictions of Western countries. However, designers are using creative ways to make a server processor to fulfill their needs. According to the latest Sina report, Chinese company Loongson has developed a 32-core processor using chiplet technology. Previously, the company announced its 16-core 3C5000 processor based on LA464 cores, which utilize LoongArch ISA. Loongson used chiplet technology to fuse two 3C5000 processors into a single-socket solution called 3D5000, which features 32 LA464 cores to create a higher-performing design. Based on the LGA-4129 package, the chip size is 75.4×58.5×6.5 mm.

The company claims that the typical power consumption is rated for 130 Watts at 2.0 GHz or 170 Watts at 2.2 GHz, with TDP power consumption not exceeding 300 Watts at 2.2 GHz even with peaks. The performance of the new 3D5000 processor, measured using SPEC2006, is 400 points and 800 points for single-socket and dual-socket servers, respectively. The four-socket server is expected to reach 1600 points in the same benchmark, so scaling is advertised as linear. Loongson hopes to provide samples to industry partners in the first half of 2023 with an unknown price tag.