The AMD Athlon XP-M 2200+ was a mobile processor with 1 core, launched in March 2003. It is part of the Athlon XP lineup, using the Barton architecture with Socket A. Athlon XP-M 2200+ has 512 KB of L2 cache and operates at 1667 MHz. AMD is making the Athlon XP-M 2200+ on a 130 nm production node using 63 million transistors. The multiplier is locked on Athlon XP-M 2200+, which limits its overclocking potential. With a TDP of 35 W, the Athlon XP-M 2200+ consumes only little energy. Many games will refuse to start on this processor due to the lack of the SSE2/SSE3/SSE4 instruction set.