page_title: Pentium II
section_title: Dixon (80524)
hierarchical_section_title: Pentium II / Core specifications / Mobile / Dixon (80524)
caption_attribution_description: English: CPU Intel Pentium II Mobile (Dixon)
context_page_description: The Pentium II brand refers to Intel's sixth-generation microarchitecture and x86-compatible microprocessors introduced on May 7, 1997. Containing 7.5 million transistors, the Pentium II featured an improved version of the first P6-generation core of the Pentium Pro, which contained 5.5 million transistors. However, its L2 cache subsystem was a downgrade when compared to the Pentium Pros.
  In 1998, Intel stratified the Pentium II family by releasing the Pentium II-based Celeron line of processors for low-end workstations and the Pentium II Xeon line for servers and high-end workstations. The Celeron was characterized by a reduced or omitted on-die full-speed L2 cache and a 66 MT/s FSB. The Xeon was characterized by a range of full-speed L2 cache, a 100 MT/s FSB, a different physical interface, and support for symmetric multiprocessing.
  In February 1999, the Pentium II was replaced by the nearly identical Pentium III, which only added the then new SSE instruction set. However, the older family would continue to be produced until June 2001 for desktop units, September 2001 for mobile units, and the end of 2003 for embedded devices.
context_section_description: Mobile Pentium II PE ("Performance Enhanced")
  L1 cache: 16 + 16 KB (Data + Instructions)
  L2 cache: 256 KB, on-die, full speed.
  Package: BGA1, MMC-1, MMC-2, μPGA1 PPGA-B615
  MMX
  Front-side bus: 66, 100 MHz, GTL+
  VCore: 1.5, 1.55, 1.6, 2.0 V
  Process: 0.25; 0.18 (400 MHz)  μm CMOS
  First release: January 25, 1999
  Clockrate: 266, 300, 333, 366, 400 MHz
  Containing 27.4 million transistors
  Die size (semiconductor chip) is 10.36 mm x 17.36 mm = 179.8496 mm²
caption: Mobile Intel Pentium II (Dixon) 400 MHz.
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