The Intel Mobile Pentium III 900 was a mobile processor with 1 core, launched in March 2001, at an MSRP of $562. It is part of the Pentium III lineup, using the Coppermine architecture with Socket 495. Mobile Pentium III 900 has 256 KB of L2 cache and operates at 900 MHz. Intel is making the Mobile Pentium III 900 on a 180 nm production node using 28 million transistors. The multiplier is locked on Mobile Pentium III 900, which limits its overclocking potential.
With a TDP of 23 W, the Mobile Pentium III 900 consumes only little energy. The highest officially supported memory speed is 133 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). For communication with other components in the machine, Mobile Pentium III 900 uses a PCI-Express N/A connection.
Many games will refuse to start on this processor due to the lack of the SSE2/SSE3/SSE4 instruction set.