A math coprocessor for the NexGen Nx586 processor, announced when the part first shipped, but never officially introduced. Due to various issues the two-socket solution envisioned turned out to be impractical, so finally NexGen shipped the Nx586 without a math unit (and therefore poor floating point performance) followed by the Nx586FP. The Nx586FP is a multi-chip module containing two dies, the Nx586 CPU and the FPU.
