SiFive Performance
P870-D
The highest performance P870-D is targeted for datacenter applications which benefit from parallelism, including storage, web servers and video streaming. The P870-D can be used standalone or in conjunction with a member of the SiFive Intelligence Processor Family.
P870-D is fully compliant with the RVA23 RISC-V Instruction Profile. It incorporates a shared cluster cache enabling up to -32 cores to be connected coherently. Use of a CHI bridge expands this to 256 CPU coherent cores, connected either in an SoC or as a set of discrete chiplets.
• RAS architecture to configure and reports errors in a manner compatible with RISC-V defined standard.
• Power management with cluster-level DVFS and idle power modes
• Supporting System IP, IOMMU, WorldGuard, Virtualization, Trace and Debug
SiFive Performance Family
- Processor family delivering superior compute density and performance for modern workloads in an energy-efficient area footprint.
- Mobile, Consumer, Datacenter and Edge Infrastructure
SiFive Performance
P870-D Key Features
- Highest performance
- 64-bit, Six-wide, out-of-order core
- >2 SpecINT2k7 / 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.
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.
Balanced Performance
SiFive’s focus for this product family is for use cases that augment power, footprint, and cost constraints with the need to efficiently scale up aggregate SoC performance.
Refer to this detailed review of the P870 CPU core from SiFive’s presentation at Hot Chips 2023: SiFive’s P870 Takes RISC-V Further.
