LS3A5000
LS3A5000
Loongson 3A5000 is a general-purpose processor for personal computers, servers, and other IT fields. Based on Loongson's proprietary LA464 microarchitecture, this processor enjoys higher frequency (2.5GHz), lower power consumption (down by over 30%), and optimized performance (up by over 50%). At the same time, it maintains pin compatibility with the Loongson 3A4000 processor. The Loongson 3B5000, based on the Loongson 3A5000, adds support for multi-path interconnection.
LS3A5000 Specification
Key Features
- Loongson instruction set architecture (LoongArch® )
- Measured single-core in SPEC CPU 2006 Base result over 26
- Measured memory bandwidth over 25 GB/s with DDR4-3200 interface
- Unified ecosystem compatibility: real-time binary translation supports of applications from different ISAs
- Fine-grained power management: Built-in power control core for dynamic voltage and frequency scaling
Frequency
2.3GHz–2.5GHz
Peak computing speed
160GFLOPS
Processor core
based on LoongArch; supporting 128/256-bit vector instructions; 4-issue out-of-order execution; 4 fixed-point units, 2 vector units, and 2 memory access units
High-speed cache
Each processor core contains a 64KB private L1 instruction cache and a 64KB private L1 data cache. Each processor core contains a 256KB private L2 cache. All processor cores share a 16MB L3 cache.
Memory controller
Two 72-bit DDR4-3200 controllers; supporting ECC
High-Speed I/O
two HyperTransport 3.0 controllers; supporting CC-NUMA
Other I/O
1 SPI, 1 UART, 2 I2Cs, and 16 GPIO interfaces
Power management
supporting dynamic shutdown of the clocks of main modules; supporting dynamic frequency scaling in main clock domains; supporting dynamic voltage scaling in main voltage domains
Typical power Consumption
35W@2.5GHz
LS3A5000 Manual
LS3A5000 Application
PC
Server
CoreSwitch
VPN
Data Gateway
