We recently covered the new Samsung Exynos 7 Octa processor and now I’m really pleased to announce that the new processor is going to be incorporated into the just-announced International Samsung Galaxy Note 4. This is interesting because it addresses one of the (marketing, perhaps!) concerns of the Note 4; it only has a 32-bit processor, whereas Android 5.0 Lollipop will support 64-bit processors. As I will come on to write, the limit of a 32-bit processor (compared with a 64-bit processor) is not such a disadvantage, but first let me write about the Note 4 and the new Exynos 7 processor.
The Note 4 is based around a 5.7-inch QHD (that meaning, 2,560 by 1,440 pixel) Samsung AMOLED screen and 3 GB of memory. There are now three processors that may be used in the note 4; the quad core 2.7 GHz, Qualcomm Snapdragon 805, the dual / quad core Samsung Exynos 5433 (this pairs up a high efficiency 1.3 GHz quad core processor with a more powerful 1.9 GHz quad core processor) and now the Samsung Exynos 7 Octa. You’ll get 32 GB of internal storage plus a MicroSD slot, a 3,220 mAh replaceable battery and of course, the S Pen, Samsung’s take on the stylus. Around the back you’ll find a 16 MP optically stabilized camera. The S Pen enables a great many software features thanks to it’s magnetic induction precision location sensors.
The new Samsung Exynos 7 Octa incorporates four ARM Cortex-A57 processor cores together with four high efficiency ARM Cortex-A53 cores, which are 64-bit compatible. The processor is able to cycle in and out these processors depending on the load up to all eight processors, compared with previous generations that could use a maximum of four processor cores. The processor is also built around current state-of-the-art 20nm die size, which reduces the physical size of the processors, meaning that they require a lower voltage. This reduces power and heat consumption. Samsung’s Exynos 7 also includes new image compression technology that’s optimized for image data processing duties such as high resolution gaming, image or video processing, face or retina recognition and augmented reality software. The idea behind Exynos 7 Octa is that you can have your high performance processor combined with low power consumption; you can have your cheesecake and eat it too. Samsung’s claims are that the Exynos 7 is 57% more powerful than the previous generation processor.
And finally, to talk about the difference between 32-bit and 64-bit processing, yes there are structural differences between these processor families but the bigger advantage is associated with the other refinements in the processor. The newer generation processors are more power efficient under same workload conditions, but because they’re more powerful, all being equal (and it never is) they will sip batteries even less, as they will complete a given task and return to idle quicker. The other advantages associated with 64-bit processors compared with 32-bit processors, such as the amount of RAM that the processor can handle, remains very much a moot point for Android devices as there are no applications that can (yet) truly benefit from being able to address more than 4 GB of RAM.
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