Samsung Exynos 5 Octa:
There are two groups of four cores that can run at any given time with this Exynos 5 Octa processor. When performance is needed, four Cortex A15 cores can handle the heavy lifting, and when doing more common tasks, you have four Cortex A7 cores to take care of things.
It is thought the first Octa processors will have the Cortex-A15 cores clocked at 1.8GHz, while at the same time the A7 cores will run at 1.2GHz. The on-board GPU has yet to be confirmed, but it is sure to offer a major graphical boost over the Exynos 4. An ARM Mali-T604 quad-core GPU is predicted.
Samsung Exynos 4 Quad:
It's a 32nm, 1.4-1.6 GHz Quad-core ARM Cortex-A9 beast with twice the processing capability of the older Exynos 4 Dual, while consuming 20 percent less power. The processor also sports a full HD 30 fps video hardware codec engine which enables 1080p video recording and playback. No doubt the new Exynos 5 Octa processor must own the same function.
Samsung says the new processor delivers twice the performance of its predecessor, Samsung's Exynos 4 Quad, which now featured in the world’s best-selling phone, the Samsung galaxy s3 and also the phablet Galaxy note 2 (plus improved graphics). That is to say new phones from Samsung are going to be noticeably faster than before.
Samsung also claimed that the enhanced processing power offered by Exynos 5 Octa processor would allow smartphones and tablets “to perform many tasks simultaneously, such as playing a game, watching an HD movie, and searching for a restaurant or business, all without lag”. Samsung also says it provides twice the 3D performance of any previous mobile processor, including the company's Exynos 4 Quad.
For short battery life, a common problem faced by most of the android phone, Samsung says that it could end up using 70% less battery life than current quad-core CPUs on the market now, as well as the dual-core Exynos 5, which currently runs on the Nexus 10. So you can read, watch, play, and write whatever you want, as long as you want.
Although Samsung didn’t reveal exactly when the Exynos 5 Octa will be available, but rumors about that it would be featured in the future high-end Samsung Galaxy S4 and Galaxy Note 3 is all around the corner. So just be patience. Let’s expect it will make its way into phones and tablets this year.