Template:mpu Core i5-520UM is a 64-bit x86 dual-core mobile microprocessor introduced by Intel in 2010. This processor, which is based on the Westmere microarchitecture (Arrandale core), is manufactured on a 32 nm process. This MPU operates at a base frequency of 1.07 GHz with a Turbo Boost frequency of 1.87 GHz and a TDP of 18 W. This processor incorporated the HD Graphics (Ironlake) IGP on the same package operating at a base frequency of 166.00 MHz and a burst frequency of 500.00 MHz.