AMD Athlon Barton core

Identification of microprocessors with Barton core:

• By part number: part numbers start with one of the prefixes: "AMSN", "AXDA", "AXLD", "AXM" or "SDA" and end with "4B", "4C", "4D" or "4E".
  An example: AXMA2400FUT4C
• By CPU ID: First two digits of CPU identification number are "6A". Please note that processors with Thorton core have the same CPUID as the Barton core. The difference between these two cores is in the size of L2 cache. Barton core has 512 KB L2 cache, while the Thorton core has 256 KB.

Athlon Barton core features
Introduction	February 10, 2003
New features	Increased L2 cache size to 512 KB Increased bus speed to 400 MHz (200 MHz DDR)
Other names	Model 10
Previous generation	Thoroughbred

Microprocessor families	Athlon MP	Athlon XP	Mobile Athlon XP-M	Sempron
Manufacturing technology	0.13 micron
Frequency (MHZ rated)	2600 - 2800	2500 - 3200	1700 - 3000	3000
Fastest processor	AMSN2800DUT4C - 2800 MHz (rated)	AXDA3000DKV4D - 3000 MHz (rated), 333 MHz FSB AXDA3200DKV4E - 3200 MHz (rated), 400 MHz FSB	AXMS2100GXS4B - 2100 MHz (rated), 200 MHz FSB AXMA3000FKT4C - 3000 MHz (rated), 266 MHz FSB	SDA3000DUT4D (SDA3000BOX) - 3000 MHz (rated)
Front-side bus frequency (MHz)	266 (133 MHz DDR)	333 (166 MHz DDR) 400 (200 MHz DDR)	200 (100 MHz DDR) 266 (133 MHz DDR)	333 (166 MHz DDR)
L2 cache	on-die 512 KB running at the processor speed