As scheduled, Samsung outed Samsung Exynos 5 Dual CPU details with various new features. New features are very impressive with High Graphics and Memory performance. Exynos 5 Dual mobile CPU is detailed as dual-core 1.7GHz  CPU based on ARM Cortex-A15 architecture. battery life and connectivity is also enhanced.
All of this is comes courtesy of a dual-core 1.7GHz  ARM Cortex-A15 CPU built on the company’s 32nm High-K Metal Gate process and Panel Self Refresh technology that avoids changing pixels unnecessarily to reduce power consumption. Samsung has also incorporated USB 3.0 and SATA III controllers into the Exynos 5 Dual, reducing potential storage bottlenecks. RAM support in the Exynos 4 processor has been superseded by 800MHz LPDDR3, which also bests the 500MHz LPDDR2 support in the Snapdragon S4.
Now it will be interesting to see that which new phone will be powered by this new processor.
Source: Samsung Blog