U74

U7 Series

U74

The SiFive U74 Standard Core is a single-core instantiation of the world’s highest performance RISC-V application processor, capable of supporting full-featured operating systems such as Linux.

The U74 is ideal for applications requiring high-throughput, single-thread performance -- but have power constraints (e.g., AR, VR, sensor hubs, IVI systems, IP cameras, digital cameras, gaming devices, etc.)

U74的主要特征:

  • Fully-compliant with the RISC-V ISA specification
     
  • RV64GC U74 Application Core
    • 32KB L1 I-cache with ECC
    • 32KB L1 D-cache with ECC
    • 8 Region Physical Memory Protection
    • 128 Global Interrupts per core
    • Sv39 Virtual Memory support with 38 Physical Address bits

     

  • Integrated 128KB L2 Cache with ECC
     
  • CLINT for timer and software interrupts
     
  • PLIC with support for up to 128 interrupts with 7 priority levels
     
  • Benchmark Scores
    • 4.27/2.5 DMIPS/MHz (Best Effort/Legal)
    • 5.1 CoreMark/MHz

U7

Series Overview

U7系列

The U7 Series features SiFive’s highest-performance RISC-V Linux-capable application processor. The U7 core has a superscalar 8-stage pipeline with support for virtual memory, enabling the most demanding 64-bit RISC-V applications such as Edge Compute, Big-Data Analytics and 5G Base Stations.

U7系列亮点

主要特征

  • Up to 8 (+1) coherent high-performance RISC-V application processors
  • Supports an in-cluster coherent combination of application processors with real-time processors (U7 and S7)
  • Application processors with deterministic response
  • High-performance L1 memory microarchitecture
  • Physical Memory Protection
  • New microarchitecture features for enhanced security and real-time determinism

应用领域

  • Enterprise Storage, Smart NICs
  • Edge Analytics, Big-Data Analytics
  • Autonomous Machines
  • Edge Compute and Switching/Routing
  • 5G Base Stations

所有标准核心

CoresAreaStandard CoresARM Comparison
E2 系列 E20 ,E21 ,E24

M0, M0+, M3, M4, M23, M33

E3 系列 E31 ,E31

R4, R5

E7 系列 E76 ,E76-MC

M7, R7, R8

S2 系列 S21

***

S5 系列 S51 ,S54

R4, R5

S7 系列 S76 ,S76-MC

M7, R7, R8

U5 系列 U54 ,U54-MC

A5, A7, A35, A53

U7 系列 U74 ,U74-MC

A55