Logs
Type| Specifications | |
|---|---|
| Cache | 64KB private level 1 instruction cache, 64KB private level 1 data cache; 256KB private level 2 cache; Share 8MB Level 3 cache |
| Frequency | 1.8GHz-2.0GHz |
| Other I/O | 1 SPI, 1 UART, 2 I2C, 16 GPIO interfaces |
| High-speed I/O | Two 16-bit HyperTransport3.0 controllers; Multi-processor data consistency interconnection (CC-NUMA) Supports 2/4/8 data interconnection |
| Number of cores | 4 |
| Processor cores | MIPS64 compatible; Support 128/256-bit vector instructions; Four launches are executed out of order; 4 fixed-point elements, 2 vector elements and 2 memory access units |
| Memory interface | Two 72-bit DDR4-2400 controllers that support ECC verification |
| Power Management | Support the dynamic shutdown of the clock of the main module; Support dynamic frequency conversion of the main clock; Supports dynamic regulation in the main voltage domain |
| Peak computing speed | 128GFlops@2.0GHz |
| Typical power consumption | <30W@1.5GHz <40W@1.8GHz <50W@2.0GHz |
No chip documents available
Notes
Loongson 3A4000/3B4000 is a general-purpose processor for personal computers, servers and other information fields. Compared with Loongson 3A3000, the pipeline efficiency of Loongson 3A4000/3B4000 is increased by 50% under the same main frequency, and the main frequency is increased to 1.8GHz-2.0GHz. The bandwidth of the HT controller for chip-to-chip interconnects and connecting bridges has been more than doubled, the memory controller has been upgraded from DDR3 to DDR4, and the SPECCPU2006 fixed-point and floating-point single-core scores have been increased to 20 points. The support for virtual machines is more perfect, and the efficiency reaches more than 95%. Loongson 3A4000/3B4000 is also the first processor to integrate vulnerability prevention design, hardware national secret algorithm, security trust module and security access control mechanism on a chip. Loongson 3B4000 supports multiple interconnects based on Loongson 3A4000.
No drivers available
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