Processor (Palomino) FSB frequency Clock frequency Model Number
AMD Athlon XP 1500+ 133 MHz 1333 MHz 1500
AMD Athlon XP 1600+ 133 MHz 1400 MHz 1600
AMD Athlon XP 1700+ 133 MHz 1467 MHz 1700
AMD Athlon XP 1800+ 133 MHz 1533 MHz 1800
AMD Athlon XP 1900+ 133 MHz 1600 MHz 1900
AMD Athlon XP 2000+ 133 MHz 1667 MHz 2000
AMD Athlon XP 2100+ 133 MHz 1733 MHz 2100

Processor (Thoroughbred "A") FSB frequency Clock frequency Model Number
AMD Athlon XP 1700+ 133 MHz 1466 MHz 1700
AMD Athlon XP 1800+ 133 MHz 1533 MHz 1800
AMD Athlon XP 1900+ 133 MHz 1600 MHz 1900
AMD Athlon XP 2000+ 133 MHz 1666 MHz 2000
AMD Athlon XP 2100+ 133 MHz 1733 MHz 2100
AMD Athlon XP 2200+ 133 MHz 1800 MHz 2200

Processor (Thoroughbred "B") FSB frequency Clock frequency Model Number
AMD Athlon XP 1700+ 133 MHz 1467 MHz 1700
AMD Athlon XP 1800+ 133 MHz 1533 MHz 1800
AMD Athlon XP 1900+ 133 MHz 1600 MHz 1900
AMD Athlon XP 2000+ 133 MHz 1667 MHz 2000
AMD Athlon XP 2100+ 133 MHz 1733 MHz 2100
AMD Athlon XP 2200+ 133 MHz 1800 MHz 2200
AMD Athlon XP 2400+ 133 MHz 2000 MHz 2400
AMD Athlon XP 2600+ 133 MHz 2133 MHz 2600
AMD Athlon XP 2800+ 166 MHz 2166 MHz 2800

Processor (Barton) FSB frequency Clock frequency Model Number
AMD Athlon XP 2500+ 166 MHz 1833 MHz 2500
AMD Athlon XP 2800+ 166 MHz 2083 MHz 2800
AMD Athlon XP 3000+ 166 MHz 2166 MHz 3000
AMD Athlon XP 3200+ 166 MHz 2xxx MHz 3200

Processor core Number of layers CPU classes
AMD Thunderbird 6 Athlon 650 MHz to 1400 MHz
AMD Palomino 7 Athlon XP 1500+ to XP 2100+
AMD Thoroughbred "A" 8 Athlon XP 1700+ to XP 2200+
AMD Thoroughbred "B" 9 Athlon XP 1700+ to XP 2800+
AMD Barton 9 Athlon XP 2500+ to XP 3200+