Intel CPU v5.1.2

Intel 486DX4

major
5
minor
1
patch
2
486DX4
suffix
—
No suffix

Metadata

PropertyValue
BrandIntel
Intel nameIntel 486DX4
Generationi486
Microarchitecturei486 (pipelined, on-die FPU)
Performance classDX
Released1994-031994
Data width32-bit
Address width32-bit
Base clock75 MHz
Max clock100 MHz
Cache16 KB L1
Transistors1,600,000
SocketSocket 3
Features
SourceCurated (historical-cpus.json)

Uses (dependencies)

Used by (0)

Nothing depends on this version.

Changelog

Since the previous patch: Intel CPU v5.1.1 (486DX2)

Specifications

  • ~Base clock: 50 MHz → 75 MHz
  • ~Max clock: 66 MHz → 100 MHz
  • ~Cache: 8 KB L1 → 16 KB L1
  • ~Transistors: 1,200,000 → 1,600,000

Since the previous minor (lower performance class): Intel CPU v5.0.0 (486SX)

Breaking changes

  • ~Socket changed from Socket 1 to Socket 3

Features

  • +On-die x87 FPU
  • +Clock multiplier

Specifications

  • ~Base clock: 16 MHz → 75 MHz
  • ~Max clock: 33 MHz → 100 MHz
  • ~Cache: 8 KB L1 → 16 KB L1
  • ~Transistors: 1,185,000 → 1,600,000

Since the previous major (previous generation): Intel CPU v4.1.0 (386DX)

Features

  • +On-die L1 cache
  • +On-die x87 FPU
  • +Clock multiplier

Specifications

  • ~Microarchitecture: i386 (32-bit) → i486 (pipelined, on-die FPU)
  • ~Base clock: 12 MHz → 75 MHz
  • ~Max clock: 33 MHz → 100 MHz
  • +Cache: 16 KB L1
  • ~Transistors: 275,000 → 1,600,000
  • −Package: 132-pin PGA