China’s CPU champ Loongson is four years behind Intel

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China’s CPU champ Loongson is four years behind Intel
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China's great CPU hope – Loongson – finds it's only four years behind Intel

on Chinese social network QQ.com last week, Loongson shared the results of tests conducted by the China Electronics Standardization Institute on its 2.5GHz quad-core Loongson 3A6000 CPU.benchmark – a test that stresses a system's processor, memory subsystem and compiler. It was retired in 2018 – two years before the debut of the Intel silicon with which Loongson claims parity, and five years before these tests.

Loongson's post stated that its silicon scored 43.1/54.6 points respectively on the SPEC CPU 2006 base single-thread fixed/floating point tests, 155/140 points respectively on multi-threaded fixed/floating point tests, and delivered 42GB/sec bandwidth over dual DDR4-3200 memory channels. Unixbench scores topped 7400 points.

Which is not unimpressive, given that Loongson's LoongArch architecture is much younger than Intel's efforts, and the fact that the 3A6000 is the first generation of the nascent chipmaker's current-generation processors. It's typical for early silicon in a processor family to be slower – and feature fewer cores – than later releases.

So perhaps China and Loongson will soon have a client processor that's comparable with the Corei9 screamers that topped the Meteor Lake cycle.

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