Compare cores
Up to four cores side by side: maturity, license, tests and activity.
| Attribute | NEORV32 | VexRiscv | Ibex | BlackParrot |
|---|---|---|---|---|
| Maturity | M4 · Production-ready | M2 · Simulation-tested | M2 · Simulation-tested | M2 · Simulation-tested |
| License | BSD-3-Clause · Commercial-friendly | MIT · Commercial-friendly | Apache-2.0 · Commercial-friendly | BSD-3-Clause · Commercial-friendly |
| Language | VHDL | SpinalHDL/Scala/Verilog | SystemVerilog | — |
| Tests | yes | yes | yes | yes |
| CI | yes | yes | yes | yes |
| Formal | — | — | yes | yes |
| FuseSoC | — | — | yes | — |
| Activity | updated 5 days ago | updated 5 days ago | updated 7 days ago | updated 1 day ago |
| Boards | — | — | — | — |
| Interfaces | — | — | — | — |
| Category | CPUs and compute | CPUs and compute | CPUs and compute | CPUs and compute |