 Arrandale is the successor of the 45 nm Core-microarchitecture-based Penryn processor that is used in many of the mobile Intel Core 2, Celeron and Pentium Dual-Core processors.While Penryn typically used both a north bridge and a south bridge, Arrandale already contains the major northbridge components, which are the memory controller, PCI Express bus for external graphics, integrated graphics, and the DMI interface, making it possible to build more compact systems.The Arrandale processor package contains two dies