AMD Athlon XP-M microprocessor family
AMD Athlon XP-M processor family is the last generation of mobile microprocessors based on K7 microarchitecture. All microprocessors from this family have the following features:
All Athlon XP-M CPUs are based on two different cores - Thoroughbred and Barton. The difference between them is in the size of level 2 cache - Thoroughbred processors have 256 KB L2 cache, and Barton processors have 512 KB L2 cache.
With the exception of desktop replacement microprocessors, which can be easily identified by AXMA* prefix in the part number, all Athlon XP-M processors have lower power consumption than desktop XP CPUs due to lower core voltage and PowerNow! feature. Many Athlon XP-Ms were manufactured in the same 453-pin PGA package as desktop processors, and could physically fit (but necessarily work in) desktop motherboards. Athlon XP-M CPUs for thin and light notebooks were produced in smaller 563-pin package.
Like desktop Athlon XP microprocessors, all Athlon XP-M parts are marked with rated speed. Please see AMD Athlon XP identification page for relationship between rated speed and actual speed of AMD Athlon XP-M CPUs.
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L2 cache size (KB):