Performance equaltor AMD “Excavator” Loongson 3A4000/3B4000 official details

On December 24 last year, Loongson released Loongson’s next-generation universal CPU product, 3A4000/3B4000, in Beijing. According to reports, Loongson 3A4000/3B4000 using the same 28nm process as the previous generation product 3A3000/3B3000, using Loongson’s latest development of a new generation processor core GS464V, main frequency 1.8GHz-2.0GHz, SPEC2006 fixed-point and floating point single-core fraction value are more than two generations of products.

It is reported that the 3A4000 universal processing performance and AMD 28nm process final product “excavator” processor. Today, officials detail features and new features of the Loongson 3A4000/3B4000 product.

Loongson Said, Loongson Science and Technology in recent years adhere to the “first improve the single-core performance and then increase the number of cores, first improve the general processing performance and then improve the special processing performance, first by optimizing the design to improve performance and then through the process to improve performance” design principle.

To sum up the characteristics of Loongson 3A4000/3B4000 in one sentence, it is “twice the performance of Loongson 3A3000/3B3000″ through the design optimization of microstructures accumulated over the years by Loongson Science and Technology under the unchanging conditions of the process.”

Among them, the Loongson 3A4000 is used for Loongson desktop spending, laptops. The Loongson 3A4000 features a new generation of processor cores (code named GS464V) developed by Loongson China. Use the same 28nm process as the previous generation of Loongson 3A3000.

Loongson 3A4000 Main Frequency 1.8GHz-2.0GHz, each CPU chip contains 4 separate processor cores. Computing performance and access performance are two of the most important indicators of processor performance, and Loongson 3A4000’s general computing performance is more than twice as high as Loongson 3A3000.

China Electronic Technology Standardization Research Institute (CESI) China Saixi Laboratory using the international standard CPU performance test tool SPEC CPU2006 for practical testing, data show that the Loongson 3A4000 fixed-point and floating-point single-core fractions are more than 20 points, The Loongson 3A3000, on the other hand, has about 10 points.

The Loongson 3A4000 has a built-in 256-bit vector cell, and the peak computing performance for scientific computing, high-density numerical information processing is more than four times that of the Loongson 3A3000.

Loongson 3A4000/3B4000 Performance Test Data

Loongson3A4000 enables fine power management with built-in power control cores that can be dynamically tuned and controlled according to operating loads. Dynamic FM, also known as “Turbo” technology, “Turbo” is different from “overclocking”, overclocking refers to the forced setting of the main frequency of the processor is higher than the regular threshold, and Turbo is the processor when working according to the operating load, power consumption requirements, power management mode dynamic frequency adjustment.

In particular, the Loongson 3A4000 also supports dynamic voltage adjustment, which is a leading technology in self-researching processors.

With optimized power management with the operating system, the Loongson 3A4000 laptop operates more than twice as long as the Loongson 3A3000. Loongson 3A4000 desktop computer with Loongson self-research 7A series bridge, improve the level of self-study of the whole machine.

Loongson 3A4000 was successfully delivered in April 2019, with mass production by the end of 2019 and mass delivery in 2020.

Loongson3B4000 belongs to the Loongson server CPU product line and is used for multi-server machine products. Loongson 3B4000 Main Frequency 1.8GHz-2.0GHz, each CPU chip contains 4 separate processor cores.

Loongson 3B4000 supports two-way, four-way servers, i.e. two or four Loongson 3B4000 chips installed on a server board, with a maximum of 16 processor cores for one server. All CPUs are directly interconnected through the high-speed bus interface and share physical memory. The Loongson3B4000 specializes in optimizing the high-speed interconnect bus between CPUs, increasing the actual bandwidth across the chip by more than 400%.

Loongson3B4000 enhances support for large memory capacity, supports DDR4 memory, and has a maximum memory capacity of up to 1TB for four servers, fully satisfying the business processing of big data volume and high concurrency.

With the above optimized design, the performance of the Loongson 3B4000 four-way server is more than four times that of the Loongson 3B3000 dual-way server.

Officials stressed that the Loongson 3A4000/3B4000 has always emphasized “complete” independent research and development. All functional modules in the chip are designed autonomously, and all circuit design source code is written by the Loongson team from scratch. Similarly, the circuit layout of the entire chip was designed by the Loongson team.