The AMD Athlon XP-M 2600+ was a mobile processor with 1 core, launched in March 2003, at an MSRP of $246. It is part of the Athlon XP lineup, using the Barton architecture with Socket A. Athlon XP-M 2600+ has 512 KB of L2 cache and operates at 2000 MHz. AMD is building the Athlon XP-M 2600+ on a 130 nm production process using 63 million transistors. You may freely adjust the unlocked multiplier on Athlon XP-M 2600+, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 45 W, the Athlon XP-M 2600+ consumes typical power levels for a modern PC. AMD's processor supports DDR1 memory. The highest officially supported memory speed is 400 MT/s, but with overclocking (and the right memory modules) you can go even higher. Actual memory technology support depends on the chosen motherboard, because the memory controller is located on the motherboard (not in the processor).
Many games will refuse to start on this processor due to the lack of the SSE2/SSE3/SSE4 instruction set.