pentium pro

1 definition found

pentium pro - Free On-line Dictionary of Computing (26 May 2007) :

  Pentium Pro
  
     <processor> (Known as "P6" during development) Intel's
     successor to the Pentium processor, in development Jan 1995,
     generally available 1995-11-01.  The P6 has an internal
     RISC architecture with a CISC-RISC translator, 3-way
     superscalar execution, and out-of order execution (or
     "speculative execution", which Intel calls "Dynamic Execution
     ").  It also features branch prediction and
     register renaming, and is superpipelined (14 stages).
  
     The P6 is made as a two-chip assembly: the first chip is the
     CPU and 16 kilobyte first-level cache (5.5 million
     transistors) and the other is a 256 (or 512) kilobyte
     second-level cache (15 million transistors).  The first
     version has a clock rate of 133 Mhz and consumes about 20W
     of power.  It is about twice as fast as the 100 MHz Pentium.
     The original 0.35 micron versions of the Pentium Pro released
     on 1995-11-01 run at 150 and 166 Mhz for desktop machines and
     up to 200 Mhz for servers.  Heat disspation is about 20
     Watts.
  
     The Pentium Pro is optimised for 32-bit software and runs
     16-bit software slower than the original Pentium.  The
     successor was the Pentium II.
  
     [Performance?]
  
     (1996-03-01)