AMD K6
Speeds: 180, 200, 233 MHz
Release: April 1997
64K primary cache.

Intel Klamath
Speeds: 233, 266 MHz
Release: Mid-1997
P6 with MMX. First SEC daughtercard.

Intel Deschutes
Speeds: 300, 333 MHz
Release: Mid-1998
First mobile P6.

Intel Katmai
Speeds: Unknown MHz
Release: Mid-1998
MMX2 and 100-MHz Bus.

Cyrix M2
Speeds: 180,200,225 MHz
Release: Mid-1997
MMX-compatible. 75-MHz Bus.

Intel Merced
Speeds: Unknown MHz
Release: 1999
IA-64 bit architecture. Adios x86!

Intel Willamette
Speeds: Unknown MHz
Release: Late 1998
50% faster than Deschutes and Klamath.