Collection: LS3A5000





LS3A5000 is the first general-purpose processor chip supporting a self-developed instruction set architecture named LoongArch™. All source codes of its key IPs are written independently, including built-in security engine modules. The main frequency of the 64-bit quad-core chip is 2.5GHz, and its performance is comparable to other mainstream CPU products. The LS3A5000 has an autonomous architecture, superior performance, ecological compatibility, and security integration features.

The LS3A5000 is the first processor from China to support LoongArchTM, a self-developed instruction set architecture

The LS3A5000 is a general-purpose processor chip designed for desktop and server applications. This is the first processor chip that supports a self-developed instruction set architecture known as LoongArchTM, which marks another milestone for China's self-developed processors.

Loongson team has accumulated experience in CPU development and ecological construction over 20 years by developing LoongArchTM. It is designed independently , from the micro-architecture to the instruction set and application binary interface. Aside from demonstrating highly efficient execution, LoongArchTM incorporates major functions of other instruction systems, such as x86 and ARM, for ecological compatibility. Based on LoongArchTM, application compatibility across mainstream instruction systems has been achieved through the technical accumulation and innovation of the Loongson binary translation team over the past ten years.

Among international open source software communities, LongArchTM is widely accepted and supported and is becoming a top-level open source instruction set ecosystem alongside X86/ARM. The GNU organization has approved a unique ELF Machine number (258), and has been recognized by many software communities, including Linux, Binutils, GDB, .NET, GCC, LLVM, Go, Chromium/V8, Mozilla/SpiderMonkey, Javascript, FFmpeg, libyuv, libvpx, OpenH264, and SRS. The UEFI Forum (UEFI specification, ACPI specification) as well as the OpenAnolis and openEuler open source communities have also supported it.



The LS3A5000 offers excellent performance and is popular with a wide range of users

LS3A5000 scores more than 26 points per core and over 80 points for four cores, respectively, in SPEC CPU2006 base benchmarks, using both SPECint and SPECfp in a GCC compiler environment.

LS3A5000 integrates autonomy and security deeply. LS3A5000 contains a number of self-designed modules, including a CPU core, a memory controller, a high-speed IO interface controller, a PLL, a multiport register file, etc. A mechanism for preventing "Spectre" and "Meltdown" attacks, as well as access control policies, such as kernel stack protection for operating systems, are implemented in the processor core. Over the past several years, hundreds of overall hardware solutions have been developed based on LS3A5000 by domestic well-known machine manufacturers and industrial terminal developers, including desktop computers, laptops, all-in-one computers, financial machines, industrial terminals, security equipment, network equipment, industrial control modules, etc. It is currently widely used in the fields of e-government, finance, communication, education, and transportation in the information technology industry.


LS3A5000 Laptop        


LS3A5000 All-in-one Computer

The LS3A5000 processor has been widely used, and China's LoongArchTM ecosystem has shown some promising results

With four LA464 processor cores and a frequency of up to 2.5GHz, the LS3A5000 is the first processor chip to support LoongArchTM. Its performance is comparable to that of other mainstream products in the CPU market, and its user experience is greatly improved in most daily tasks, such as the processing of complex documents, the opening of web browsers, the acceleration of 3D engines, the decoding of 4K HD, and various business transactions. The LoongArchTM ecosystem has evolved rapidly over the past few years. In addition to providing a secure and autonomous base for the construction of China's critical information infrastructure, the ultimate goal is also to actively promote the development of information technology systems and industrial ecosystems independent of Wintel (Windows+Intel) and AA (Arm+Android).



LS3A5000 Has Been Used in the E-government