This document compares the specifications of the PSP, Nintendo DS, and Nvidia Shield including their CPUs, RAM, graphics processors, displays, audio capabilities, operating systems, power sources, and storage media. The PSP has a 333MHz CPU and 4MB of RAM while the Nintendo DS has a 67MHz dual-CPU and 4MB of RAM. The Nvidia Shield has the most powerful specs with a quad-core Tegra 4 CPU, 2GB of RAM, and runs Android Jelly Bean.