Considere os processadores:

- Texas Instruments TI486DX2-G80-GA (80 MHz- 168- pin CPGA)
- IBM 51F1784ESD (20 MHz 132-pin PGA)
- Cyrix Cx486DLC-33GP (33 MHz 132-pin ceramic CPGA)
- AMD A80386DXL-25 (25 MHz - 132-pin ceramic CPGA)

Estes chips têm em comum