Intel CPU v7.1.0

Intel Pentium Pro

minor
1
patch
0
Pentium Pro
suffix
—
No suffix

Metadata

PropertyValue
BrandPentium
Intel nameIntel Pentium Pro
CodenameP6
GenerationP6 (Pentium Pro/II/III)
MicroarchitectureP6 (out-of-order)
Performance classPentium
Released1995-111995
Data width32-bit
Address width36-bit
Base clock150 MHz
Max clock200 MHz
Cache16 KB L1, 256 KB–1 MB L2 (in package)
Transistors5,500,000
SocketSocket 8
Instruction sets
Features
SourceCurated (historical-cpus.json)

Uses (dependencies)

Used by (0)

Nothing depends on this version.

Known vulnerabilities and defects

  • Spectre variant 1 (bounds check bypass) (CVE-2017-5753): Mistrained conditional branches speculatively read out-of-bounds data. Mitigated in software only; every speculative out-of-order core is affected.

Matched by codename; individual steppings may differ.

Changelog

Since the previous minor (lower performance class): Intel CPU v7.0.0 (Celeron (Covington))

Breaking changes

  • ~Socket changed from Slot 1 to Socket 8

Security

  • ✓Fixed: Meltdown

Instruction sets

  • +SSE

Specifications

  • ~Codename: Covington → P6
  • ~Base clock: 266 MHz → 150 MHz
  • ~Max clock: 300 MHz → 200 MHz
  • ~Cache: 32 KB L1, no L2 → 16 KB L1, 256 KB–1 MB L2 (in package)
  • ~Transistors: 7,500,000 → 5,500,000

Since the previous major (previous generation): Intel CPU v6.0.0 (Pentium (P5))

Breaking changes

  • ~Socket changed from Socket 4 to Socket 8

Security

  • !Introduced: Spectre variant 1 (bounds check bypass)

Instruction sets

  • +MMX
  • +SSE

Features

  • +Out-of-order execution
  • +Physical Address Extension
  • −Superscalar (dual pipeline)
  • −64-bit data bus

Specifications

  • ~Codename: P5 → P6
  • ~Microarchitecture: P5 (superscalar) → P6 (out-of-order)
  • ~Address width: 32-bit → 36-bit
  • ~Base clock: 60 MHz → 150 MHz
  • ~Max clock: 66 MHz → 200 MHz
  • ~Cache: 16 KB L1 → 16 KB L1, 256 KB–1 MB L2 (in package)
  • ~Transistors: 3,100,000 → 5,500,000