Nvidia wants to accelerate mobile-device performance with underlying tools that enable CPUs and graphics processors to work in a coherent manner. The company released on Tuesday its CUDA 5.5 programming tools, which will for the first time support ARM CPUs used in most smartphones and tablets. The tools could bring the type of performance gains that have helped supercomputers surpass petaflops in performance. But with mobile devices, the performance boosts will fit within a specific power limit.