https://wccftech.com/western-digital-shows-two-new-swerv-risc-v-cores-for-microcontrollers/

Western Digital has added two new processor cores, the SweRV Core EH2 and the SweRV Core EL2, into its SweRV portfolio of microcontroller CPUs. The current processor core, the SweRV Core EH1, is based on 28nm and has just one thread running at 4.9 MHz. The SweRV Core EH1 uses the RISC-V Type of RV32IMC and has a 9-dual pipeline stage while the two newer cores will be built on the 16 nm processor nodes.

Western Digital's SweRV cores have three different models of the cores SweRV Core EH1, SweRV Core EH2, and SweRV Core EL2, which all offer different specifications. The two newer cores are the SweRV Core EH2 and the SweRV Core EL2, and the SweRV Core EH2 uses the same 9-dual pipeline stage that the SweRV Core EH1 uses but instead of having one thread per core the SweRV Core EH2 has two 16-nm cores that run amazingly fast running at the speed of 6.3 MHz.