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

Super 7

    An upgrade to Socket 7 to support AGP
   and a 100 MHz system bus,, supported by non-Intel
   processor and motherboard manufacturers such as AMD and
   Cyrix.

   Due to faster access to L2 cache and memory, Super 7 gives a
   10% performance boost over Socket 7 motherboards for the same
   processor.  Super 7 motherboards should support all Socket 7
   processors.

   (1999-08-04)