Samsung has officially announced the Exynos 4 Quad, the 1.4GHz quad-core chipset that the company says will be at the core of the Galaxy S3. Based on four ARM Cortex A9 cores and promising double the performance of its Exynos 4 Dual predecessor while using 20-percent less power, the Samsung Exynos 4 Quad uses High-K Metal Gate (HKMG) low-power tech and a custom power-management companion chip that automatically controls the cores so as to balance grunt and efficiency.













