20nm High-K metal gate heterogeneous 64-bit quad-core CPUs and hexa-core GPU for high-performance and energy-efficient mobile application processor

This paper presents a heterogeneous configuration of two 64-bit different target quad-core CPUs. To support both high-performance and high energy-efficiency depending on application requirements, two types of 64-bit quad-core CPUs are implemented in one mobile application processor. The first quad-core CPU provides the highest performance at the cost of reasonable power consumption. The second quad-core CPU manages most of non-peak workload with high energy efficiency. This paper addresses the design issues for 64-bit high-performance quad-core CPU and for low-power quad-core CPU. Our heterogeneous configuration of two 64-bit different target implementations can provide efficient power and performance for various mobile applications.