@ simplyanin Jelly bean is based on arm v7 architecture... And gingerbread is based on armv6 architecture... But cpu architecture of grand is cortex A9 architecture....
The architecture and feature set of the Cortex-A7 processor are identical to the*Cortex-A15 processor, with differences in the Cortex-A7 processor's microarchitecture focused on providing optimum energy efficiency, enabling the two processors to operate in tandem in abig.LITTLE*configuration to provide the ultimate combination of high-performance with ultra-low power consumption.
As a standalone processor, the Cortex-A7 will enable entry level smartphones at below $100 price point in the 2013-2014 timeframe that are equivalent to a $500 high-end smartphone in 2010.*These entry-level smartphones will redefine connectivity and internet usage in the developing world.. Reference arm website...
Intel processors are based on x86 architecture.... So there is limited support of applications in Intel.... Most of the application only made for arm architecture...
, this is a very common source of confusion for virtually everyone looking at the iPhone 5. That’s because of an unfortunate naming decision that Apple decided made.
As I understand it, there’s no current (new) phone on the market with a Cortex A6.*And to my knowledge, know of NO device using it. The Cortex A7 came out last year*and is designed for smaller, leaner phones.
Some phones include both a Cortex-A7 and another beefier CPU. In this kind of design, the A7 handles light tasks and it switches over to a stronger CPU depending on workload.
As with all the other CPUs, the Cortex A8 is designed to use the ARM v7 instruction set and is just a linear progression in capability in the Cortex series, so it’s faster and scales better in response to workload. However, it is more a general use design than the A7, which is a specialized product.
The confusion comes from*Apple’s own internal branding of CPUs, of which ALL are based on the ARM v7 instruction set. Apple’s own internal terminology for their CPU on the iPhone 5 is “Apple A6″, but that’s only in reference to its “system on a chip” products, which meld both the graphics processor and the CPU onto the same chip. Specifically, the Apple A6 includes both a custom dual-core Cortex A9 and a graphics processor.
So to recap, the common misunderstanding is that Apple uses a Cortex A6. It does not. Rather it uses a custom built Cortex-A9, which uses the ARM v7 instruction set (which is NOT a CPU, but rather a form of code) and Apple refers to this chipset as the Apple A6.
The actual difference between the three kinds of processors that you are referring to is that theCortex-A7 is designed to be energy efficient. Functionally, you would want a CPU to be dual purpose, both energy efficient and fast. The A8 is a good middle ground between efficiency and speed.
The*Cortex-A8 is designed to be faster. It is more of a general purpose design than the A7 or the A15 (not discussed here).
The A6 must have been some kind of reference design, because it’s not available even on the ARM website.
From galaxy grand 4.2.2 firmware..