Having launched its first 16-core CPU for servers earlier this week, Loongson is wanting ahead to releasing a 32-core processor within the coming months and matching the efficiency of AMD’s Zen 3-based merchandise within the coming years.
Chinese language CPU developer Loongson formally launched and began to ship its first 16-core 3C5000 processor based mostly on its proprietary LoongArch instruction set structure earlier this week. At a convention the place the CPU was formally unveiled, the corporate additionally talked about its future endeavors, and so they look fairly formidable. Within the coming months, the corporate will reveal its 3D5000 CPU with 32 cores, which can mix two 3C5000 processors on a single piece of substrate. In distinction, its next-generation 6000-series processors could match the instruction per cycle (IPC) efficiency of AMD’s Zen 3 microarchitecture, stories EET-China (opens in new tab).
Loongson’s current-generation 5000-series (quad-core 3A5000 and 16-core 3C5000/3C5000L) processors are on its LoongArch-based 64-bit superscalar LA464 cores. They’re suitable with the MIPS ISA (to take care of compatibility with purposes written for Loongson’s previous-generation processors.) however can even execute code explicitly written for LoongArch. With 4 general-purpose ALUs, and two 256-bit vector operations models, the LA464 cores look promising. Nonetheless, as soon as the software program is recompiled to reap the benefits of 2,000 proprietary LoongArch directions, they promise to shine.
Primarily based on the numbers demonstrated by Loongson at its convention, the quad-core 3A5000 processor working at 2.50 GHz can problem fashionable eight-core Armv8 implementations in addition to Intel’s tenth Era Core ‘Comet Lake’ processors by way of single-thread efficiency in UnixBench. Nonetheless, the chip falls behind in multi-thread execution velocity for apparent causes. In the meantime, Loongson didn’t publish the efficiency of its 16-core 3C5000 CPU in the same state of affairs however solely talked about that the processor operates at 2.0 – 2.20 GHz and delivers as much as 560 GFLOPS of uncooked efficiency at 130W.
For its next-generation Loongson 6000-series processors, the corporate plans to make use of its upcoming LA664 core to extend effectivity and increase IPC throughput, the corporate stated at its occasion, citing the outcomes of its simulations. Consequently, Loongson’s 16-core 3C6000 and 32-core 3D6000 processors due in 2023 ~ 2024 will have the ability to problem AMD’s Ryzen and EPYC CPUs based mostly on the Zen 3 microarchitecture by way of efficiency per cycle.
For Loongson, matching AMD Zen 3’s IPC in 2023 is an enormous deal because the firm might be ready considerably to shut the hole with trendy chips from main builders. Nonetheless, matching directions per cycle alone will not be sufficient to succeed in the precise efficiency of AMD’s CPUs. Maybe, Loongson’s 16-core 3C6000 and 32-core 3D6000 processors will have the ability to problem the real-world efficiency of AMD’s up to date low-power EPYC processors in applications that may reap the benefits of LoongArch’s improvements. Nonetheless, we might not count on Loongson’s 2023 choices to be aggressive in opposition to AMD’s 2021 CPUs.
Curiously, attributable to its 16-core 3C7000, 32-core 3D7000, and 64-core 3E7000 processors due in 2024 ~ 2025, Loongson will proceed to depend on its LA664 cores will most likely produce them on a brand new node to extend their efficiency per watt effectivity.
As much as 64 cores and improved efficiency per watt may pose a extra important problem to CPUs from AMD and Intel, however anticipating Loongson’s merchandise to interchange processors from main designers in performance-demanding purposes is simply too optimistic.