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Chinese Loongson 3A6000 CPU delivers integer IPC close to AMD Zen 4 and Intel Raptor Lake

Chinese-made Loongson 3A6000 CPU shows good integer IPC performance on SPEC 2017 benchmark (Image source: Geekerwan)
Chinese-made Loongson 3A6000 CPU shows good integer IPC performance on SPEC 2017 benchmark (Image source: Geekerwan)
The Loongson 3A6000 CPU is a follow-up to the China-made 3A5000 launched in 2021. While the newer processor is still fabricated on a 12 nm process and is based on LoongArch, it has seen many improvements. The newer processor reportedly matches the integer IPC (instructions per cycle) performance of AMD Zen 4 and Intel Raptor Lake architectures.

Even though the Chinese Loongson 3A6000 CPU lacks the raw performance to compete with the high-end processors from Intel and AMD, it's showing promising IPC benchmark performance. According to a test run by a Chinese tech reviewer named Geekerwan, the China-made processor can match the integer IPC (instructions per cycle) performance of Zen 4 and Raptor Lake architectures.

For a fair comparison of benchmark results with Intel and AMD processors, the reviewer clocked all the CPUs to 2.5 GHz as the Chinese processor maxes out at this clock speed. With this configuration, the Loongson 3A6000 CPU had an integer IPC measurement of 4.8, while the Raptor Lake and Zen 4 had 4.9 and 5.0, respectively.

As for the floating point (FP) performance, the Chinese-made Loongson 3A6000 processor needs a lot of catching up to do. It got an FP IPC measurement of 6.0 on the SPEC 2017 CPU benchmarking tool. To compare, the Zen 4 Ryzen 9 7950X (curr. $514.50 on Amazon) got 7.1, and the Intel Raptor Lake Core i9-14900K (curr. $546.02 on Amazon) got 7.8.

One thing that became a bit obvious in the later benchmarks is that the Chinese Loongson 3A6000 CPU is being held back for lower cores and slower clock speeds. But it's pretty evident that the processor is a much-improved successor of the 3A5000. The newer chip offers a 46% jump in integer IPC and a 64% boost in floating point IPC.

It's worth noting that IPC primarily evaluates the architecture's performance, and it's notoriously difficult to improve. But the boost seen in the Loongson 3A6000 is promising, and the next-gen 3A7000 could be even better with more cores and higher clock speed. Check out the video attached below if you want to learn more about the new China-made CPU and see how it performs in other benchmark tools.

SPEC 2017 CPU benchmark comparison (Image source: Geekerwan)
SPEC 2017 CPU benchmark comparison (Image source: Geekerwan)

Source(s)

Geekerwan (video embedded above) via: Tom's HardwareTechPowerUp

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2024 02 > Chinese Loongson 3A6000 CPU delivers integer IPC close to AMD Zen 4 and Intel Raptor Lake
Abid Ahsan Shanto, 2024-02-14 (Update: 2024-02-14)