LS3A6000
LS3A6000
Loongson 3A6000 is the first processor of Loongson's 4th-generation microarchitecture for high-end embedded computers, desktops, servers, and other applications. It utilizes the independently designed instruction set architecture (LoongArch) and is built upon the newly developed LA664 cores. The Loongson 3A6000 processor boosts a significant improvement in performance when compared to the Loongson 3A5000, with single-core integer/floating-point performance increasing by 60% and 90%, respectively, and multi-core integer/floating-point performance up by 100% and 90%. The processor demonstrates a single-thread integer/floating-point score of 43.1/54.6 in SPEC CPU 2006 base, both of which are competitive levels in the international market.
LS3A6000 Specification
Frequency
2.0–2.5GHz
Peak computing speed
240 GFLOPS
Physical cores
4
Logical cores
8
Processor core
64-bit superscalar LA664 cores; supporting LoongArch instruction set architecture; supporting 128/256-bit vector instructions; 6-issue out-of-order execution; 4 fixed-point units, 4 vector units, and 4 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
1 HyperTransport 3.0 controller
Other I/O
1 SPI, 1 UART, 2 I2Cs, and 16 GPIO interfaces
Packaging
35mm×35mm BGA package with 1,190 pins
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
38W@2.5GHz
