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RISC-V Cores and SoC Overview

This document captures the status of various cores and SoCs that endeavor to implement the RISC-V specification. Note that none of these cores/SoCs have passed the in-development RISC-V compliance suite.

Please add to the list and fix inaccuracies - see our CONTRIBUTING file for details.

Cores

Name	Supplier	Links	Capability	Priv. spec	User spec	Primary Language	License
Avispado	SemiDynamics	Website	RV64	1.10	RV64GC, 2.2, multicore, V-ready	SystemVerilog	Commercial License
Atrevido	SemiDynamics	Website	RV64	1.10	RV64GC, 2.2, multicore, V-ready	SystemVerilog	Commercial License
RV32EC_P2	IQonIC Works	Website	RV32	1.11	RV32E[M]C/RV32I[M]C	SystemVerilog	IQonIC Works Commercial License
RV32IC_P5	IQonIC Works	Website	RV32	1.11	RV32I[M][N][A]C	SystemVerilog	IQonIC Works Commercial License
RV32EC_FMP5	IQonIC Works	Website	RV32	Custom	RV32EC	SystemVerilog	IQonIC Works Commercial License
rocket	SiFive, UCB Bar	GitHub	RV32	1.11-draft	2.3-draft	Chisel	BSD
freedom	SiFive	GitHub	RV32,RV64	1.11-draft	2.3-draft	Chisel	BSD
Berkeley Out-of-Order Machine (BOOM)	UCB BAR	Website,GitHub	RV64	1.11-draft	2.3-draft	Chisel	BSD
CV32E40P	OpenHW Group	GitHub	RV32	1.11	RV32IM[F]C	SystemVerilog	Solderpad Hardware License v. 0.51
Ibex (formerly Zero-riscy)	lowRISC	GitHub	RV32	1.11	RV32I[M]C/RV32E[M]C	SystemVerilog	Apache 2.0
CVA6	OpenHW Group	GitHub	RV32,RV64	1.11	RV[32/64]GC	SystemVerilog	Solderpad Hardware License v. 0.51
Riscy Processors	MIT CSAIL CSG	Website,GitHub	RV32,RV64			Bluespec	MIT
RiscyOO	MIT CSAIL CSG	GitHub	RV64	1.10	RV64IMAFD	Bluespec	MIT
Lizard	Cornell CSL BRG	GitHub	RV64		RV64IM	PyMTL	BSD
Minerva	LambdaConcept	GitHub	RV32	1.10	RV32I	nMigen	BSD
OPenV/mriscv	OnChipUIS	GitHub	RV32		RV32I(?)	Verilog	MIT
VexRiscv	SpinalHDL	GitHub	RV32	1.10	RV32I/E[M][A][F[D]][C]	SpinalHDL	MIT
VexRiscv Plugins for B and K	Romain Dolbeau	GitHub	RV32	N/A	RV32[B][K] for the VexRiscV core	SpinalHDL	MIT
Roa Logic RV12	Roa Logic	GitHub	RV32	1.9.1	2.1	SystemVerilog	Non-Commercial License
SCR1	Syntacore	GitHub	RV32	1.10	2.2, RV32I/E[MC]	SystemVerilog	SHL v. 2.0
SCR3	Syntacore	Website	RV32,RV64	1.10	RV[32/64]IMC[A], 2.2, milticore	SystemVerilog	commercial
SCR4	Syntacore	Website	RV32,RV64	1.10	RV[32/64]IMCF[DA], 2.2, milticore	SystemVerilog	commercial
SCR5	Syntacore	Website	RV32,RV64	1.10	RV[32/64]IMC[FDA], 2.2, milticore	SystemVerilog	commercial
SCR7	Syntacore	Website	RV64	1.10	RV64GC, 2.2, milticore	SystemVerilog	commercial
Hummingbird E200	Bob Hu	GitHub	RV32	1.10	2.2, RV32IMAC	Verilog	Apache 2.0
Shakti	IIT Madras	Website,GitLab	RV64	1.11	2.2, RV64IMAFDC	Bluespec	BSD
ReonV	Lucas Castro	GitHub	RV32			VHDL	GPL v3
PicoRV32	Clifford Wolf	GitHub	RV32		RV32I/E[MC]	Verilog	ISC
MR1	Tom Verbeure	GitHub	RV32		RV32I	SpinalHDL	Unlicense
SERV	Olof Kindgren	GitHub	RV32		RV32I	Verilog	ISC
SweRV EH1	Western Digital Corporation	GitHub	RV32	1.11	2.1, RV32IMC	SystemVerilog	Apache 2.0
SweRV EL2	Western Digital Corporation	GitHub	RV32	1.11	2.1, RV32IMC	SystemVerilog	Apache 2.0
SweRV EH2	Western Digital Corporation	GitHub	RV32	1.11	2.1, RV32IMAC	SystemVerilog	Apache 2.0
biRISC-V	UltraEmbedded	GitHub	RV32	1.11	RV32I[M]	Verilog	Apache 2.0
Reve-R	Gavin Stark	GitHub	RV32	1.10	RV32IMAC	CDL	Apache 2.0
L10	Codasip	Website	RV32	1.0	RV32EMC	Verilog	Codasip EULA
L30	Codasip	Website	RV32	1.0	RV32IMC	Verilog	Codasip EULA
L30F	Codasip	Website	RV32	1.0	RV32IMFC	Verilog	Codasip EULA
L50	Codasip	Website	RV32	1.0	RV32IMC	Verilog	Codasip EULA
L50F	Codasip	Website	RV32	1.0	RV32IMFC	Verilog	Codasip EULA
H50X	Codasip	Website	RV64	1.0	RV64IMC	Verilog	Codasip EULA
H50XF	Codasip	Website	RV64	1.0	RV64IMFDC	Verilog	Codasip EULA
A70X	Codasip	Website	RV64	1.0	RV64IMAFDC	Verilog	Codasip EULA
DarkRISCV	Darklife	GitHub	RV32		most of RV32I	Verilog	BSD
RPU	Domipheus Labs	GitHub	RV32		RV32I	VHDL	Apache 2.0
RV01	Stefano Tonello	OpenCores	RV32	1.7	2.1, RV32IM	VHDL	LPGL
N22	Andes	Website	RV32	1.11	RV32IMAC/EMAC + Andes V5/V5e ext.	Verilog	Andes FreeStart IPEA
N25F	Andes	Website	RV32	1.11	RV32GC + Andes V5 ext.	Verilog	Andes Commercial License
D25F	Andes	Website	RV32	1.11	RV32GCP + Andes V5 ext.	Verilog	Andes Commercial License
A25	Andes	Website	RV32	1.11	RV32GCP + Sv32 + Andes V5 ext.	Verilog	Andes Commercial License
A25MP	Andes	Website	RV32	1.11	RV32GCP + Sv32 + Andes V5 ext. + Multi-core	Verilog	Andes Commercial License
NX25F	Andes	Website	RV64	1.11	RV64GC + Andes V5 ext.	Verilog	Andes Commercial License
AX25	Andes	Website	RV64	1.11	RV64GCP + Sv39/48 + Andes V5 ext.	Verilog	Andes Commercial License
AX25MP	Andes	Website	RV64	1.11	RV64GCP + Sv39/48 + Andes V5 ext. + Multi-core	Verilog	Andes Commercial License
A27	Andes	Website	RV32	1.11	RV32GCP + Sv32 + Andes V5 ext.	Verilog	Andes Commercial License
A27L2	Andes	Website	RV32	1.11	RV32GCP + Sv39/48 + Andes V5 ext.	Verilog	Andes Commercial License
AX27	Andes	Website	RV64	1.11	RV64GCP + Sv39/48 + Andes V5 ext.	Verilog	Andes Commercial License
AX27L2	Andes	Website	RV64	1.11	RV64GCP + Sv39/48 + Andes V5 ext.	Verilog	Andes Commercial License
NX27V	Andes	Website	RV64	1.11	RV64GCPV	Verilog	Andes Commercial License
N45	Andes	Website	RV32	1.11	RV32GC + Andes V5 ext.	Verilog	Andes Commercial License
D45	Andes	Website	RV32	1.11	RV32GCP + Andes V5 ext.	Verilog	Andes Commercial License
NX45	Andes	Website	RV64	1.11	RV64GC + Andes V5 ext.	Verilog	Andes Commercial License
A45	Andes	Website	RV32	1.11	RV32GCP + Sv32 + Andes V5 ext.	Verilog	Andes Commercial License
AX45	Andes	Website	RV64	1.11	RV64GCP + Sv39/48 + Andes V5 ext.	Verilog	Andes Commercial License
Instant SoC	FPGA Cores	Website	RV32		RV32IM	VHDL	Free Non Commercial
Taiga	Reconfigurable Computing Lab, Simon Fraser University	GitLab	RV32		RV32IMA	SystemVerilog	Apache 2.0
Maestro	João Chrisóstomo	GitHub	RV32		RV32I	VHDL	MIT
XuanTie C910	T-Head (Alibaba group)	Website	RV64	1.10	RV64GCV + SV39 + ISA Extension + Memory model Extension + multi-core & multi-cluster(16 cores maximum)	Verilog	Alibaba commercial license
XuanTie C906	T-Head (Alibaba group)	Website	RV64	1.10	RV64IMA[FD]C[V] + SV39 + ISA Extension + Memory model Extension	Verilog	Alibaba commercial license
XuanTie E906	T-Head (Alibaba group)	Website	RV32	1.10	RV32IMA[F][D]C + ISA Extension	Verilog	Alibaba commercial license
XuanTie E902	T-Head (Alibaba group)	Website	RV32	1.10	RV32EMC/IMC/EC	Verilog	Alibaba commercial license
BM-310	CloudBEAR	Website	RV32	1.10	RV32IMC	SystemVerilog	CloudBEAR Commercial License
BI-350	CloudBEAR	Website	RV32	1.10	RV32IMAFC + multi-core	SystemVerilog	CloudBEAR Commercial License
BI-651	CloudBEAR	Website	RV64	1.10	RV64GC + multi-core	SystemVerilog	CloudBEAR Commercial License
BI-671	CloudBEAR	Website	RV64	1.10	RV64GC + multi-core	SystemVerilog	CloudBEAR Commercial License
SSRV	risclite	Website,GitHub	RV32	1.10	RV32IMC	Verilog	Apache 2.0
Tinyriscv	Blue Liang	GitHub	RV32		2.1, RV32I	Verilog	Apache 2.0
RSD	rsd-devel	GitHub	RV32		RV32IM	SystemVerilog	Apache 2.0
Pluto	PQShield	Website	RV32	1.11	RV32I[M][C] / RV32E[M][C] + Crypto Functions	Verilog	PQShield Commercial License
E2	SiFive	Website	RV32	1.11	RV32I(E)MAFC 2.2	Verilog	SiFive commercial license
S2	SiFive	Website	RV64	1.11	RV64GC 2.2	Verilog	SiFive commercial license
E3	SiFive	Website	RV32	1.11	RV32I(E)MAFDC 2.2	Verilog	SiFive commercial license
S5	SiFive	Website	RV64	1.11	RV64GC 2.2	Verilog	SiFive commercial license
U5	SiFive	Website	RV64	1.11	RV64GC 2.2	Verilog	SiFive commercial license
E7	SiFive	Website	RV32	1.11	RV32I(E)MAFDC 2.2	Verilog	SiFive commercial license
S7	SiFive	Website	RV64	1.11	RV64GC 2.2	Verilog	SiFive commercial license
U7	SiFive	Website	RV64	1.11	RV64GC 2.2	Verilog	SiFive commercial license
Kronos	Sonal Pinto	GitHub	RV32		RV32I	SystemVerilog	Apache 2.0
N100	Nuclei	Website	RV32	1.11	RV32EC	Verilog	Nuclei commercial license
N200	Nuclei	Website	RV32	1.11	RV32IC(E)(M)(A)	Verilog	Nuclei commercial license
N300	Nuclei	Website	RV32	1.11	RV32IMAC(F)(D)(P)	Verilog	Nuclei commercial license
N600	Nuclei	Website	RV32	1.11	RV32IMAC(F)(D)(P)	Verilog	Nuclei commercial license
NX600	Nuclei	Website	RV32	1.11	RV64IMAC(F)(D)(P)	Verilog	Nuclei commercial license
UX600	Nuclei	Website	RV64	1.11	RV64IMAC(F)(D)(P) + MMU-SV39	Verilog	Nuclei commercial license
WH32	UC Techip	Website	RV32	1.10	RV32GCX	Chisel	UC Techip Commercial License
WARP-V	Steve Hoover, Redwood EDA	GitHub	RV32		RV32I[M][F]	TL-Verilog	BSD
NEORV32	Stephan Nolting	GitHub	RV32	1.12-draft	2.2, RV32[I/E][M][A][C][Zfinx][Zicsr][Zifencei]	VHDL	BSD
Steel	Rafael Calcada	GitHub	RV32	1.11	RV32IZicsr	Verilog	MIT License
Klessydra-T13	Digital Systems Lab at Sapienza University of Rome	GitHub	RV32	1.11	RV32[I/E][M][A] + Kless-Vect	VHDL-2008	Solderpad Hardware License v. 0.51
Klessydra-T03	Digital Systems Lab at Sapienza University of Rome	GitHub	RV32	1.11	RV32I[A]	VHDL-2008	Solderpad Hardware License v. 0.51
Klessydra-T02	Digital Systems Lab at Sapienza University of Rome	GitHub	RV32	1.11	RV32I[A]	VHDL-2008	Solderpad Hardware License v. 0.51
Klessydra-F03	Digital Systems Lab at Sapienza University of Rome	GitHub	RV32	1.11	RV32I[A]	VHDL-2008	Solderpad Hardware License v. 0.51
MYTH Cores	MYTH Workshop students	GitHub	RV32		RV32I	TL-Verilog	BSD
Starsea_riscv	Starsea	GitHub	RV32		RV32I	Verilog	Apache 2.0
VEGA	C-DAC	Website	RV32, RV64	1.10	2.2, RV[32/64]IMA[F][D][C], Multi-core	Bluespec	commercial
NutShell	UCAS & ICT,CAS	GitHub	RV64	1.11	RV64IMAC	Chisel	Mulan Permissive Software License V2
NOEL-V	Cobham Gaisler	Website	RV32,RV64	1.11	RV32GC,RV64GC	VHDL	GPL, Commercial

SoC platforms

Name	Supplier	Links	Capability	Core	License
Rocket Chip	SiFive, UCB BAR	GitHub,Simulator	RV32	Rocket	BSD
LowRISC	lowRISC	GitHub	RV32	RV32IM	BSD
PULPino	ETH Zurich, Università di Bologna	Website,GitHub	RV32	RI5CY, Zero-riscy	Solderpad Hardware License v. 0.51
PULPissimo	ETH Zurich, Università di Bologna	Website,GitHub	RV32	RI5CY, Zero-riscy	Solderpad Hardware License v. 0.51
Ariane SoC	ETH Zurich, Università di Bologna	Website,GitHub	RV64	Ariane	Solderpad Hardware License v. 0.51
OPENPULP	ETH Zurich, Università di Bologna	Website,GitHub	RV32	RI5CY, Zero-riscy	Solderpad Hardware License v. 0.51
HERO	ETH Zurich, Università di Bologna	Website,GitHub	RV32	RI5CY, Zero-riscy	Solderpad Hardware License v. 0.51
OpenPiton + Ariane	Princeton Parallel Group, ETH Zurich, Università di Bologna	Website,GitHub	RV64	Ariane	Solderpad Hardware License v. 0.51, BSD
Briey	SpinalHDL	GitHub	RV32	VexRiscv	MIT
Riscy	AleksandarKostovic	GitHub	RV64	RV64I	MIT
Raven	RTimothyEdwards, mkkassem (efabless.com)	GitHub	RV32	PicoRV32	ISC
PicoSoC	Clifford Wolf	GitHub	RV32	PicoRV32	ISC
Icicle	Graham Edgecombe	GitHub	RV32	RV32I	ISC
MIV RV32IMA L1 AHB	Microchip	Documentation, IDE, Development Environment	RV32	Rocket RV32IMA	Apache 2.0
MIV RV32IMA L1 AXI	Microchip	Documentation, IDE, Development Environment	RV32	Rocket RV32IMA	Apache 2.0
MIV RV32IMAF L1 AHB	Microchip	Documentation, IDE, Development Environment	RV32	Rocket RV32IMAF	Apache 2.0
MIV RV32IMC	Microchip	Documentation, IDE, Development Environment	RV32	Submicron RV32I, RV32IC, RV32IM, RV32IMC	Apache 2.0
FreeStart AE250	Andes	Website	RV32	N22	Andes FreeStart: Free for Evaluation
Standard AE250	Andes	Website, IDE	RV32	N22	Andes Commerical License
AE350	Andes	Website, IDE	RV32,RV64	N25F, D25F, A25, A25MP, NX25, AX25, AX25MP, A27, A27L2, AX27, AX27L2, N45, D45, A45, NX45, AX45	Andes Commerical License
SCR1 SDK	Syntacore	GitHub	RV32	SCR1, SCRx	SHL 2.0
ESP	SLD Group, Columbia University	Website, GitHub	RV64	Ariane	Apache 2.0
Chipyard	UCB BAR	GitHub,Documentation	RV64	Rocket, BOOM	BSD
PQSoC	PQShield	Website	RV32	Pluto	PQShield Commercial License
KRZ	Sonal Pinto	GitHub	RV32	Kronos	Apache 2.0
IOb-SoC	IObundle	GitHub	RV32	PicoRV32	MIT
SweRVolf	CHIPS Alliance	GitHub	RV32	SweRV EH1, SweRV EL2	Apache 2.0
Servant	Olof Kindgren	GitHub	RV32	SERV	ISC
NEORV32 Processor	Stephan Nolting	GitHub	RV32	NEORV32	BSD
GRLIB	Cobham Gaisler	Website	RV32,RV64	NOEL-V	GPL, Commercial
LiteX	Enjoy Digital	Website, GitHub	RV32,RV64	BlackParrot, CV32E40P, Minerva, PicoRV32, Rocket, SERV, VexRiscv (SMP supported with VexRiscv)	BSD

SoCs

Include a chip if it has been fabricated and is either available for sale, available for preorder, or running production workloads internally, and if it has at least one RISC-V hard core (no FPGAs, but non-"SoC" products with controller cores are allowed).

Name	Supplier	Links	Core	ISA	OS	Devkit	Availability
FE310-G000	SiFive	Datasheet	E31	RV32IMAC	RTOS	HiFive1	public since 2016Q4
FE310-G002	SiFive	Product page	E31	RV32IMAC	RTOS	HiFive1 Rev B	announced 2019Q1, available for preorder
Freedom U540	SiFive	Product page	U54 (4 cores), E51 (1 management core)	RV64GC (application cores), RV64IMAC (management core)	Linux	HiFive Unleashed development board	public since 2018Q1
GAP8	GreenWaves Technologies	Product page	PULP / 1 + 8 RI5CY	RV32IMC (+ Priviledged and custom ISA extensions)	RTOS	GAPuino development board	public since 2018Q1
K210	Kendryte	Product page, Datasheet, GitHub	K210	RV64GC	Linux	KD233 development board, Sipeed MAIX/M1 development boards	public since 2018Q4
RV32M1	NXP	Reference Manual and Datasheet	RI5CY + Zero RI5CY + Arm Cortex M4F + Arm Cortex M0+	RV32IMC	RTOS	VEGAboard	available for preorder as of 2018Q4
RavenRV32	efabless	Datasheet, GitHub	PicoRV32	RV32IMAC	RTOS	RavenRV32 DevKit	Limited Quantity
PolarFire SoC	Microchip	Product Page, IDE with Renode platform	U54 (4 cores), E51 (management core)	RV64GC(U54), RV64IMAC(E51)	Linux	Microchip Icicle Kit, HiFive Unleashed Expansion Board	Icicle Kit ES available Q3 2020, HiFive Unleased Expansion Board - Q2 2018
GD32VF103	GigaDevice	Product listing,Datasheets	Bumblebee Core	RV32IMAC	RTOS	GD32VF103V-EVAL, Longan Nano etc.	Public since 2019Q4
CH572, CH573	WCH	Product Page	RISC-V3A	RV32IMAC	RTOS		public since 2019Q1
CH32F103	WCH	Product Page Datasheet	RISC-V3A	RV32IMAC	RTOS		public since 2020Q2
MiG-V	Hensoldt Cyber GmbH	Product Page	CV6A	RV64IMAC	TrentOS		Limited