Called P870-D, it is an update of the non-data centre P870, with support added for AMBA CHI protocol.
“By harnessing a standard CHI bus,” said SiFive, “the P870-D enables SiFive’s customers to scale up to 256 cores while harnessing industry-standard protocols including CXL [Compute Express Link] and CHI C2C [chip to chip] to enable coherent high core count heterogeneous SoCs and chiplets.”