SiFive Intelligence

The SiFive Intelligence™ X280 is a multi-core capable RISC-V processor with vector extensions and SiFive Intelligence Extensions and is optimized for AI/ML compute at the edge.

In addition to ML inferencing, it is ideal for applications requiring high-throughput, single-thread performance while under power constraints (e.g., AR, VR, sensor hubs, IVI systems, IP cameras, digital cameras, gaming devices).

Read about how customers are using our AI Dataflow Processor to offload critical data functions

SiFive Intelligence Family

  • High-performance AI dataflow processor with scalable vector compute capabilities.
  • AI workloads, data flow management, object detection, speech and recommendation processing.

SiFive Intelligence
X280 Key Features

  • SiFive Intelligence Extensions for ML workloads
    - Custom instructions to greatly accelerate Neural Network computation
    - Optimized TensorFlow Lite implementation
    - Hundreds of Neural Network models ported
    - 4.6 TOPS performance
  • 512-bit vector register length processor
    - Variable length operations, up to 512-bits of data per cycle
    - Ideal balance of control logic and data parallel compute
    - Decoupled Vector pipeline
    - INT8 to INT64 integer data type
    - BF16/FP16/FP32/FP64 floating point data type
  • Performance benchmarks
    - 5.75 CoreMarks/MHz
    - 3.25 DMIPS/MHz
    - 4.6 SpecINT2k6/GHz
  • Built on silicon-proven U7-Series core
    - 64-bit RISC-V ISA
    - 8-stage dual-issue in-order pipeline
    - Coherent multi-core, Linux capable
  • High performance vector memory subsystem
    - Memory parallelism provides cache miss tolerance
    - Virtual memory support with precise exceptions
    - Up to 48-bit addressing
  • Multi-core, multi-cluster processor configuration, up to 8 cores

Intelligence X280
Development Kit

Dev Kit Deliverables

  • RTL Evaluation
  • Test Bench RTL
  • Software Development Kit
  • FPGA Bitstream
  • Documentation

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