The Free On-line Dictionary of Computing (30 December 2018):

VAX MIPS
VUP

    (Or VAX Unit of Performance, VUP) The processing
   power normally attributed to a Digital Equipment Corporation
   VAX 11/780.  Future VAX systems were rated according to this
   scale (e.g. VAX 8350's being 2.7 VUPs per CPU).  A MicroVAX
   II is normally associated with 0.9 VUPs and at a later time
   the MicroVUP was coined to rate VAX workstations.  The use
   of the VUP by Digital Equipment Corporation has been replaced
   with more standard benchmarks (SPECint and SPECfp) in the
   DEC Alpha processor systems.

   (1996-08-22)