Mobile Celeron microprocessors with Mendocino core share many features with desktop Mendocino CPUs. All Mendocino Celerons are based on P6 micro-architecture, have 32 KB level 1 cache, integrate 128 KB level 2 cache running at the CPU speed, and, like almost all others P6 CPUs, support MMX instructions. Mobile Celerons have much lower power consumption than desktop Mendocino processors partly due to lower core voltage (1.6 Volt as opposed to 2 Volt for desktop processors), and partly due to two new power-saving modes - Quick Start and Deep Sleep. The Mobile Mendocino CPUs are packaged into 615-pin micro-PGA or 615-ball BGA packages - these packages are much smaller than 370-pin PPGA package of desktop microprocessors.