SiFive Performance
P800-Series

SiFive Performance
P870-D Key Features

Infrastructure-specific features including CHI interface, unique cross-cluster RAS tree, distributed IOMMU, WorldGuard system-level security and an uncore agent acting as a central hub for power management, debug and trace, time management and interrupt control. 

• Highest single threaded performance in portfolio
• 64-bit, 6-wide, out-of-order core
• >2 specInt2k17 / GHz *
• Up to 64 clusters, max 256-cores, either on-chip or via chiplet connectivity

* Contact us to request specific power, performance and area information for particular process nodes.

• Full support for the RVA22 RISC-V profile specification and Vector 1.0 and Vector Crypto for enabling 64-bit apps processors running feature rich OS stacks such as Linux and Android.
• Breakthrough RISC-V performance
  - Coherent, multi-core, multi-cluster processor configurations, with up to 16 cores
  - Highest performance commercially licensable RISC-V processor
• >18 SpecINT2k6/GHz (P870 Processor)
  - 2x 128b VLEN RVV
  - Vector crypto and hypervisor extensions
  - IOMMU and AIA
  - Non-inclusive L3 cache
  - Proven RISC-V WorldGuard security

• P800-Series Architectural Features
  - 64-bit RISC-V core with extensive Virtual Memory Support
  - Four-issue, out-of-order pipeline tuned for scalable performance
  - Private L2 Caches and Streaming Prefetcher for improved memory performance
  - SECDED ECC with Error Reporting
• Enabling next generation high performance applications
  - RISC-V Hypervisor Extension and System-Level Virtualization IP
  - Advanced interrupt controller with support for MSI style interrupts and virtualization
  - SiFive WorldGuard System Security
  - Cache stashing to L3 for tightly coupled accelerators