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The massive image: Loongson is supposedly simply three years behind its Western opponents in the case of the IPC efficiency of its CPUs. Whereas spectacular, their use of outdated course of nodes means they cannot sustain with the clock charges of AMD and Intel chips, making real-world efficiency lag even additional behind.
Final week, Chinese language CPU developer Loongson began delivery its 3C5000L server processor. It options 16 cores, a clock charge of as much as 2.2 GHz, and makes use of a 12 nm course of node.
The corporate claims the CPU can ship as much as 560 GFLOPS of compute efficiency at 130W with out offering some other benchmark numbers. Loongson’s 5000-series processors use its proprietary LoongArch ISA, though they’re additionally appropriate with MIPS to keep up help for purposes written for its previous-generation processors.
The chipmaker did publish some efficiency numbers for its 3A5000 CPU operating at 2.5 GHz, claiming it delivers comparable single-threaded efficiency in UnixBench to an Intel Tenth-gen Core i7 10700. Nevertheless, multi-threaded efficiency is considerably decrease, because the 3A5000 solely options 4 cores.
Loongson plans to make use of a brand new LA664 structure for its upcoming 6000-series processors to extend effectivity, supposedly placing their IPC efficiency on par with AMD’s Zen 3 structure. The corporate expects to launch its 16-core 3C6000 and 32-core 3D6000 in 2023 or 2024.
Whereas that does sound spectacular, Loongson’s chips will most likely nonetheless be restricted to the sub-3 GHz vary, that means real-world efficiency might be considerably decrease.
The corporate can be planning to introduce a 64-core variant with its 7000-series chips. These will preserve utilizing the LA664 structure, though they are going to most likely swap to a more recent course of node, rising their effectivity additional.
It will be attention-grabbing to see if Russia begins utilizing Loongson’s CPUs extra in its infrastructure. The nation might need no alternative contemplating current sanctions, not less than till it develops its home chip manufacturing capabilities extra.
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