Intel Mobile Pentium III microprocessor family

Mobile Pentium III microprocessor family is based on Pentium III Coppermine core and includes many features present in desktop Coppermine Pentium III CPUs. All mobile processors have 32 KB level 1 cache and 256 KB Advanced Transfer Cache integrated on the die. All mobile microprocessors operate at 100 MHz Front Side Bus and include support for SSE instructions, that were introduced in Pentium III Katmai core. The mobile microprocessors have slightly lower core voltage than desktop Coppermine processors. In addition to lower core voltage the mobile processors include new power-saving modes that save battery power by temporary suspending the CPU:

• Quick start mode - this mode offers better power savings than standard Auto Halt or Stop Grant modes. CPU exit time from this mode is shorter than exit time from the AutoHalt/Stop Grant modes.
• Deep Sleep mode - this mode offers the best power savings, but CPU exit time from this mode is the slowest.

Majority of mobile Pentium III microprocessors also include SpeedStep technology. This technology allows the CPU to switch to battery optimized mode. In this mode the processor has lower frequency and lower core voltage, which greatly reduces processor's power consumption. Typically, switching to battery optimized mode can cut CPU's power power consumption in half.