Difference Between Apple A7 and A8 Processors

Apple A7 vs A8 Processors

Apple A7 and Apple A8 are chips that are found on mobile Apple products such asiPhonesandiPads。These chips are called SoC (System on Chip) as they contain all basic components of a computer such as processor, memory, timing devices, interfaces, and power management circuits, on a single chip. Apple A8 is the latest chip that Apple currently use as per today and Apple A7 was the one that was used before A8. Apple A8 chip is, therefore, more advanced than A7 and hence is capable of providing better speed and graphics for applications and games.

Both Apple A7 and A8 contain a special unit calledGPU(Graphical Processing Unit) that is designed especially to support better graphics.The GPU on A8 is more advanced than A7, so it can support games that need higherlevels of graphics rendering. The processor is the device that is responsible for all calculations and controlling. The processor on the A8 is powerful than what is on A7, so A8 can provide higher performance than A7 for applications. Also, since technology used for manufacturing A8 is more modern and advanced than what was used for A7, A8 chips are smaller in size despite the higher number of transistors.

Apple A7 Review – features of Apple A7

Apple A7 was first introduced iniPhone 5Sthat was introduced to the market in 2013. It contain s an ARMv8-A dual core CPU called Cyclone that the speed is around 1.3-1.4GHz. It is the first time a 64 bit processor was introduced on a consumer mobile phone or a tablet computer. Samsung did the manufacturing of A7 chips . A28 nm process is used for chip manufacturing where the chips contained over 1 billion transistors. The sensors are handled by motion co-processor called M7 in order to save power. There are two variants of Apple A7 as APL 0698 and APL 5698. APL 0698 was used in iPhone 5S and iPad Mini 2 while APL 5698 was used iniPad Air。The die size is identical in both, but APL 0698 has 1 GB of LPDDR3 RAM on chip itself while APL 5698 has no such stacked memory.

Apple A8 Review – features of Apple A8

Apple A8 is the latest Apple SoCas per today which the introduction happened in September 2014. It is currently being used in iPhone 6 andiPhone 6 plus。该处理器是ARM​​V8双核旋风处理器的增强版本。Apple A8芯片由TSMC制造，该芯片先前由三星制造。高级20纳米工艺用于制造芯片。根据苹果公司的说法，A8的能源效率比A7高50％。A8的性能远高于A7，但大小比A7小15％。一个称为M8的协会与A8一起使用，以促进传感器的测量。2014年10月，使用iPad Air 2，引入了A8的一个变体A8 X，其中包括一个额外的核心，而频率更高。

What is the difference between Apple A7 and A8 Processors?

	Apple A7	Apple A8
Date of release	September 20th2013	September 9th2014
Designer	Apple	Apple
Manufacturer	Samsung	TSMC
Minimum feature size	28 nm	20 nm
Die Size	104 mm2	89 mm2
CPU	2 x ARMv8 64 bit Cyclone cores	2 x ARMv8 64位增强旋风内核
No of transistors	About 2 billion	Over 1 billion
Instruction Set	ARMv8-A	ARMv8-A
Micro-architecture	Cyclone	Cyclone Generation 2
Co-processor	Apple M7	Apple M8
内存	1 GBof LPDDR3 DRAM (in APL0698).	1GB of LPDDR3
GPU	IMG Power VR G6430	IMG Power VR GX6450
L1 Cache	64KB Instruction cache + 64 KB data cache per core	64KB Instruction cache + 64 KB data cache per core
L2 Cache	1MB shared	1MB shared
L3 Cache	4MB	4MB

Summary:

Apple A7 vs A8

Apple A7和A8都用于Apple Mobile产品。最新的是Apple A7的继任者Apple A8。苹果A8尽管尺寸较小，而与A7相比，其性能和能源效率比A7高得多。此外，A8可以比A7更好地渲染图形。因此，通常，Apple A8可以比Apple A7运行性能更好的应用程序和游戏。