Nvidia Corp. on Monday introduced what it calls the world’s highest-performing application processors for tablets and smartphones. The new chip is among the first quad-core system-on-chip devices for mobile applications that packs ARM Cortex-A15 cores. The latest Tegra 4 also features a number of photography-related advantages.Nvidia Tegra 4, previously code-named “Wayne”, features four ARM Cortex-A15 general-purpose cores as well as custom second-generation low-power general-purpose cores. The chip also incorporates 72 custom Nvidia GeForce stream processors that provide six times graphics processing performance of previous-gen Tegra 3. The new application processor also fully supports output to ultra high-definition screens with up...