Comparatively speaking, is apple A8-A9 promoted more or is it A 10-A 1 1 promoted more?

The improvement of CPU performance comes from many aspects: architecture and main frequency. . Looking at the progress of CPU in recent years, the most important thing is advanced technology (that is, under the same chip area and power consumption, more transistors can be inserted to improve the main frequency. Is it simple and rude? )

Compared with a6(32nm), the performance of a7(28nm) has doubled, and the biggest reason is that the number of transistors of a7CPU has doubled (65.438+0 billion) (instead of the metaphysical improvement brought by the so-called 64-bit processor).

Compared with a7, the number of transistors in a8(20nm) continues to soar (2 billion). However, due to the large increase of 6/6p pixels (larger screen), most of the extra transistors are GPU, and the CPU is not improved much.

Compared with a8, a9( 14/ 16nm) has significantly improved the performance of CPU(+70%) and GPU(+90%) again, which is not only because of the further increase of transistors (the chip area is increased with advanced manufacturing technology), but also because of the significant increase of main frequency (1).

A 10 fusion( 16nm) is the first processor in the history of iPhone to continue the previous generation technology and the first quad-core processor. Compared with a9, the chip area is only one circle larger (104.5mm2 to 125mm2). Considering the addition of two small-core CPUs this time, the actual large-core CPU+GPU transistor estimation is basically the same as the previous generation. In this case, the CPU is increased by 40% and the GPU is increased by 70%. The reason for the GPU upgrade is unknown, but the CPU upgrade is obviously due to the main frequency soaring to 2.34G again (the range is more than 25%), and the performance of the same frequency has not improved much. And a 10 became the first processor in the history of iPhone to run down the frequency. )

To sum up, for the same processor, the performance basically depends on stacking transistors and pulling the main frequency, and the architecture has little effect (the toothpaste factory next door has been crowded for several years)

The next generation a 1 1 can finally use the late 10nm. Unfortunately, 10nm is the same as the original 20nm, and the power consumption is not well controlled, which is doomed to be a transitional process. As far as Taipower's ppt is concerned, compared with the original generation of 16nm, the performance of 10nm is improved by 20% at the same power consumption, and the power consumption of the same performance is reduced by 40%, so it is impossible to do high frequency at 10nm.

This generation of a 10 is also the same manufacturing process, but in order to achieve the annual performance growth of iPhone, Apple has to greatly increase the main frequency (thanks to the new fan-shaped package, the heat dissipation has been improved to a certain extent), but it still cannot stop the full-load frequency reduction for a long time. It can be seen that the next generation a 1 1 will be based on reducing power consumption, such as improving the large and small core mode.

Let's talk about the experience and feelings of ordinary users first. You can look up the parameters and data on the search software. The key is to talk about experience. The speed of the chip is getting faster every year, but the tangible gains it brings to consumers may not be like this. I have to talk about the comprehensive performance of this product.

The following is my experience of changing planes:

When switching from 4s(A5) to 5c(A6), what can be clearly perceived is the improvement of GPU. Wild drag racing 8 can only turn on 50% special effects on 4s, and it can be turned on completely on 5c. But in addition, in the daily software startup speed, the frame rate of browsing in the software and so on. Compared with 4s, 5c has no obvious improvement. Comparing with friends' 5s(A7), it is found that the speed of running ios7 and 5C is far less than 5s, and the frame dropping frequency even exceeds 4s running ios6. This is the first time I feel that the performance of iPhone devices is limited. A6 obviously can't feed ios7, otherwise if A6 can run ios7 perfectly, the value of 5s will be greatly reduced. After half a year, I changed to 5s, and the smooth experience seems to have returned to ios6. Even after I upgraded to ios8, the speed of 5s didn't drop significantly. Compared with A6, A7 is worthy of the name when the cpu and Gpu are improved by 65,438+000%.

A year later, I changed the small 6 (A8), which was the first time I questioned the performance of the iPhone. Under the same conditions of running ios8, Xiao 6 returned to the desktop much faster than 5 seconds when the software was running, so I deliberately ran back to the store and asked. This also shows from the side that A8 can only improve the cpu performance by about 20% compared with A7, which can't meet the load of big screen. In addition, the performance of the 6th generation is much tighter than that of the 5s, but this does not necessarily prevent the 6th generation from being the best-selling series. After all, the big screen smells so good.

One year later, 6sp(A9) was replaced, and the blessing of 2G storage completely solved the experience limitation of iPhone which had been sealed for a long time. 6sp completely crushes 6 in terms of game performance and processing ability of daily use. Let's not talk about the app, just use the fingerprint speed on 6sp, and you never want to go back to using 6SP. After running 10 minutes on 6, the frame will be dropped to NBA2k 15, and 6sp will run the full special effects frame. Here I leave a conclusion: I think the experience improvement from A8 to A9 is the most obvious in all previous dynasties. That I reached X at 6sp.

X was replaced at 20 18. Yes, I used 6sp for two years. Generation 7 doesn't attract me at all. 6sp is awesome. For x(A 1 1), the biggest experience improvement is not performance, but a suitable fuselage size, plus a variety of closely integrated operation logic. This is a very comfortable mobile phone, and I don't want to use stupid plus anymore. The perception of performance improvement is not obvious. Perhaps the performance of the iPhone can already feed the ios after A9. In short, the feeling from A9 to A 1 1 is almost A5 to A6, so it is almost the same.

20 19~ now, xs. The most disappointing iPhone is Intel baseband, but since the topic is about performance, I try not to talk about anything else. Let's just say that A 12 of ios 12 has the most perfect fluency I have ever experienced on iPhone. Whether it's starting an application, browsing the web, multitasking, etc. In the course of one year's use, even a card frame has not appeared, and the completion degree exceeds that of 5s with ios7. However, the point is that there is still no obvious perceptible improvement compared with X. That is to say, if it is not operated to the limit, the gap between A 1 1 and A 12 is very small, which seems to be unqualified for the upgrade of S generation.

Compared with a8, A9 has the biggest increase, with single core doubling and multi-core nearly doubling. A 10 increased by nearly 50%, a 1 1 increased by nearly 25%, and a 12 increased by nearly 18+0.

Aside from the conventional upgrade, A8 A9 changed the data transmission mode of flash memory from NAND Pcie, which is a structural change. A9 A 10 is the structural change of packaging mode, and A 10 A 1 1 is changed from single-channel PCIE flash memory to dual-channel Pcie. On the other hand, the storage of A9 A 10 has changed from A9 single-crystal CPU and GPU*** to multi-particle storage integration, and the CPU and GPU are stored independently. Apple A series is getting closer and closer to the desktop PC architecture, step by step. You can see Apple's ambition and hope to help you.

Talking about experience has no data. A9 has made the greatest progress than A8! In the same environment, A8 takes 7~8 seconds to open an application, and A9 takes 2 seconds to open it. Forget the game and talk about daily life. A9 does not lose A 13. It feels the same! 6sp of ios 13 system is faster than xs max of 12 system, and it can be seen by naked eyes, even if it is less than one second. Above A 10, there is certainly improvement, in terms of performance, energy consumption, GPU and AI. ...

Thanks to the ios system, A9 released by 15 is still very fast (fast doesn't mean smooth).

The promotion of A 1 1 is great, but it can't be completely fired and consumes too much power. How long does it take for the core to start and stop? The intervention of small kernel leads to frequent frame loss in application. A 12 is optimizing power consumption, heating and strengthening gpu.

In terms of CPU, A8 to A9 are increased by more than 70%, while A 10 to A 1 1 is only increased by more than 45%.

Of course, A8 to A9 have more upgrades. I was lucky enough to use the iPhone 6s with A9 chip, and it really felt different.

The improvement from 6 to 6s is not a little bit. At that time, the advertisement of iPhone 6s was "only different, but different everywhere". The A9 chip can be described as Apple's biggest performance improvement in recent years.

To tell the truth, in order to promote the innovation of 6s and increase the follow-up functions of the system, friends who have used iPhone 6 should remember how many cards there are in the mobile phone after upgrading iOS 9.

In fact, when it comes to A 10 and A 1 1 chips, the representative models are iPhone 7 and iPhone X. In fact, most iPhone users still don't feel much performance difference after comparing the two models. The difference lies in the experience. One is the traditional design, and the other is the new experience (including Face ID and OLED screen). Few people still think that the gap between 6 and 6s is as obvious. Rather than saying that iPhone X will lead the next 10 year, it is better to say that A9 chip has opened the leap-forward development process of Apple.

From apple a8 to apple a9, the upgrade from A 10 to a 1 1 is not great, but it is the beginning of the self-research of Apple's A-series chip GPU (although this self-developed GPU acquired hollow img), but on the way of research and development, Apple also acquired many micro-architecture companies.

Apple's A-series processor feels simple, and it is estimated that a 13 is much stronger than a 12.