Source : Free On-Line Dictionary of Computing

i860
     
         A 32/64-bit {superscalar} {RISC} {microprocessor}
        from {Intel}, released in 1989.  Originally codenamed "N10".
        It has a 32-bit integer {ALU} and a 64-bit {floating-point
        unit}.  It has a 64-bit {data bus} with an initialisation mode
        which only uses eight bits of the data bus to allow the use of
        a small {boot ROM}.  It has a 32-bit wide {instruction cache}
        and a separate 64-bit wide {data cache}.  It uses {register
        scoreboarding} and {register bypassing}.  The {clock rate} is
        33 MHz with a clock-doubled version available.
     
        (1998-03-28)