Loongson 3a4000 and 3b4000, new Chinese cpus similar to excavator
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Chinese chipmaker Loongson, formerly known as Godson, has announced its latest 3A4000 and 3B4000 quad- core processors. The first is aimed at the main market, while the second is designed for the server market. The chips are 100% made in China and do not depend on any third party intellectual property.
Loongson 3A4000 and 3B4000
Loongson's President Hu Weiwu has stated that the 3A4000 offers twice the performance of its predecessor, the 3A3000. Hu goes on to mention that the processor performance is comparable to that of the 28nm AMD Excavator CPUS, which was released in 2015.
Both the 3A4000 and 3B4000 employ the GS464V microarchitecture and are built on the 28nm FD-SOI (Fully Depleted Silicon On Insulator) manufacturing process from STMicroelectronics and utilize the FCBGA-1211 package. The processors are equipped with four cores, 8 MB of L3 cache, and clocks that run between 1.8 GHz and 2 GHz.
Loongson's latest pair of 28nm parts supports DDR4-2400 memory, dynamic frequency, and voltage regulation, which should help improve battery life in notebook computers. The 3A4000 consumes up to 30W, 40W, and 50W at 1.5 GHz, 1.8 GHz, and 2 GHz, respectively.
The 3B4000, which is the server chip, works well with ECC (error correction code) and can be deployed in an eight-way configuration to offer four times the performance of the previous 3B3000 that was limited to a two-way configuration.
When it comes to security features, the 3A4000 and 3B4000 come with built-in mechanisms to protect against vulnerabilities, like Meltdown and Specter. The processors also support encryption and decryption algorithms, including MD5, AES, and SHA.
Visit our guide on the best processors on the market
Loongson has already charted the path for next year. The chipmaker expects to introduce the quad-core 3A5000 and 16-core 3C5000 chips to the Chinese market in 2020. The new processors would be based on a more up-to-date 12nm manufacturing process and would run at up to 2.5 GHz, which It should offer even more performance, approaching what Intel and AMD are offering today, perhaps their mid-range and low end. We will keep you informed.
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