- 32-bit processing
- Highly configurable feature set
- Scalable performance
- 32-bit embedded RTOS support
- Up to 8-stage pipeline
- Power & area optimized
- Up to dual-issue superscalar
RISC-V
Core IP Portfolio
Discover the industry’s broadest portfolio of RISC‑V cores, customizable for your specific application needs
Powering Innovation Across Industries
The SiFive® Core IP portfolio consists of four distinct families, each designed to address diverse computing demands: high-performance application processors, low-power embedded microcontrollers, highly scalable vector and matrix processors for AI and modern workloads, and solutions specifically designed for the automotive industry. Built on the RISC-V ISA and supported by flexible software and a global ecosystem, our core IP offers customers world-class performance and versatility.
Essential
The SiFive Essential™ family offers a wide range of silicon-proven, pre-defined embedded CPU cores or lets you use SiFive Core Designer to build a custom processor configuration tailored to your specific market and needs.
- Highly customizable to meet exact requirements
- Scales from 32-bit MCUs to 64-bit dual-issue
- Proven Innovation: billions of units shipped worldwide
Intelligence
SiFive Intelligence™ embraces a software-first approach to processor design, addressing the future needs of deploying ML and AI at the edge. It provides high-performance, scalable vector and matrix compute capabilities, adaptable to evolving workloads.
- Scalar + wide vector compute engines
- High bandwidth bus interfaces to control custom engines
- Highly scalable matrix computing solutions
Performance
SiFive Performance™ delivers maximum performance and throughput in a range of sizes and power profiles. These cores provide customers with highly efficient, feature-rich RISC-V scalar and vector computing capabilities, tailored for optimal balance and industry-leading results.
- High Performance 64bit Out of Order scalar engines
- Full support for RVA23 profile
- Optional vector compute engines across the portfolio
Automotive
SiFive Automotive™ solutions provide a range of high-end application and real-time processors, delivering industry-leading performance, minimal area, and low power consumption. ISO 21434, ISO 26262 ASIL B, ASIL D and split-lock certifications.
- High performance IP for IVI, ADAS and Central Compute
- Embedded cores for Zonal compute, safety islands, and microcontrollers
- Intelligence AI cores for all vehicle workloads, including ADAS/AD
SiFive Essential Family
E Series
Essential
S Series
Essential
- 64-bit processing
- No code size increase over 32-bit core
- Highly configurable feature set
- Scalable performance
- 64-bit embedded RTOS support
- Up to 8-stage pipeline
- Up to dual-issue superscalar
U Series
Essential
- Memory Management Unit providing virtual memory support
- Highly configurable feature set
- Scalable performance
- 64-bit rich OS support (including Linux)
- 8-stage pipeline
- Up to dual-issue superscalar
SiFive Intelligence Family
X100 Series
Intelligence
- 32-bit or 64-bit CPU
- 128-bit Vector Length
- SSCI and VCIX
X200 Series
Intelligence
- 512-bit Vector length
- Single Vector ALU
- VCIX (1024-bit)
X300 Series
Intelligence
- 1024-bit Vector Length
- Single/Dual Vector ALU
- VCIX (2048-bit)
XM Series
Intelligence
- Scalable Matrix Engine
- 4 X300 cores per cluster
- 1 Cluster = 16 TOPS (INT8)
SiFive Performance Family
P400 Series
Performance
- Highly efficient, lowest power cores
- 3-wide out-of-order core
- Scalable up to 16 cores
- RVA22 with 1x128-bit Vectors/vector crypto
P500 Series
Performance
- RV64GBC capable core with Sv39/Sv48 Virtual Memory Support
- 3-wide out-of-order core
- Scalable up to 8 cores
- Accelerating RISC-V adoption with HiFive Premier P550 development board
P600 Series
Performance
- High performance cores for general purpose applications
- 4-wide out-of-order core
- Scalable to up to 16 cores
- RVA22 with 2x128-bit Vectors/vector crypto
P800 Series
Performance
- Highest single threaded performance cores
- 6-wide, out-of-order core
- Scalable to 256 cores
- RVA23 with 2x128 bit vectors
- CHI bridge
- RAS Functionality
SiFive Automotive Family
E6-A Series
Automotive
- 32-bit 8 stage scalar
- Balanced performance and efficiency
- ASIL B, D
E7-A Series
Automotive
- 32-bit superscaler
- High performance and efficiency
- ASIL B, D
S7-A Series
Automotive
- 64-bit superscaler
- High performance embedded
- ASIL D
Leading the RISC-V Revolution
The History of RISC-V
SiFive was founded by the inventors of RISC-V, an open standard approach to computer architecture, unburdened by legacy constraints and free from vendor lock-in.
Key Markets
RISC-V is already utilized in billions of devices and applications worldwide. Explore how SiFive is powering rapid expansion and innovation across key markets.
Why Choose SiFive
Discover how SiFive’s RISC-V expertise can help you break free from outdated architectures. So you have more freedom to innovate.