=====  Intel  =====

^**CPU**   ^Pentium  ^Pentium Pro ^ Pentium 2 ^Celeron ^ Pentium 3 ^ Pentium 4 ^Xeon ^
|**Package** |PGA  | SPGA | SEC | SEP, PGA, SEC | SEC, PGA | PGA | SEC, PGA |
|**Sockets** |Socket 4\\ Socket 5\\ Socket 7 | Socket 8| Slot 1| Slot 1\\ Socket 370\\ Socket 478 | Slot 1\\ Socket 370 | Socket 423\\ Socket 478  | Slot 2\\ Socket 603 |
|**Pins** | 273\\ 320\\ 296 or 321 | 387 | 242 | 242\\ 370\\ 478 | 242\\ 370 | 423\\ 478\\ | 330\\ 603 |

=====  AMD  =====

^**CPU**  ^K5 ^K6 ^Athlon ^Duron ^Thunderbird ^Athlon XP ^
|**Package** | PGA| PGA| SEC | PGA | PGA | PGA |
| **Sockets** | Socket 5\\ Socket 7 | Socket 7 | Slot A | Socket A | Socket A | Socket A |
| **Pins** | 320\\ 296 or 321 | 296 or 321 | 242 | 462 | 462 | 462 |