Comparison of three domestic CPU parameters such as Loongson 3B

Loongson 3B1500

Frequency: 1.2GHz-1.5GHz

Microarchitecture: Integrated eight 64-bit superscalar processor cores

Each processor core has the following characteristics:

Support MIPS64 instruction set and Godson extended instruction set;

9-stage super-line structure;

Four transmit out-of-order execution structures;

2 fixed-point units, 2 floating-point units, and 1 fetch unit;

Each floating-point unit supports 256-bit vector operations;

Use crossbars to interconnect the cores;

Through the HT interface for inter-chip scalable interconnect cache: 64KB private level instruction cache and data cache; 128KB private secondary cache; 8 processor cores share 8MB level 3 cache

Memory controller: integrates two 72-bit DDR2/3 controllers, supports ECC check for high-speed I/O: integrates two HyperTransport2.0 controllers and other I/O: integrated PCI controller and LPC, SPI, UART, GPIO, etc. I/O controller manufacturing process: 28nm CMOS process package: 40mm*40mm BGA package, 1121 pins, pin compatible with Godson 3A function, power pin part has different power consumption: z typical operating mode; 40W @ 1GHz vector Working Mode Shenwei 1610

Production Process 40nm Instruction System General-purpose 64-bit, Autonomous Shenwei RISC Instruction Set Core 16 superscalar Shenwei processor cores with 256-bit SIMD acceleration component clocked at 1.0GHz~1.6GHz

Peripheral interface integrated PCI-E Gen2 X8 system interface, 8Gbps*8

Integrated Gigabit Ethernet MAC, GMII interface with integrated custom maintenance debug interface, 4 128-bit DDR3-1600 main memory channels, ECC check, 4*25.6GB/s

Feiteng 1000

Main technical parameters Single chip integrates 8 processor cores. Each core can execute 8 thread-compatible SPARC v9 instruction systems in parallel. Eco-friendly environment integrates 4MB secondary cache on chip

Integrate 4 DDR3 memory controllers on chip, chip memory bandwidth 34GB/s

On-chip integrated 3 direct connection ports support 2-4 CPUs directly connected to form SMP system On-chip integrated 1x 8x PCIE2.0 interface CPU frequency 1GHz

CPU fixed-point peak computing power 16GIPS

CPU double precision floating-point peak calculation capability 8GFLOPS

Low power design, power consumption 50W