Seeing this title may seem a little overwhelming, but that's right. In recent years, compared to the iPad, Apple's A series of enhanced version, the performance of other mobile processors really lag behind. How did Apple go on this crazy road? Today we take a look at the iPad's crazy stuffing process:
The New iPad (third generation iPad, iPad 3, A5X processor)In addition to introducing the A5X, the new iPad, the New iPad also brought Retina-class screens to the iPad for the first time, with a resolution of. This resolution is also used in the current iPad Air2 and iPad mini4. It can be said that the era Pioneers.
Apple A5X processor (dual core A9 + quad-core SGX544)
The New iPad is also the first product to have an "X" suffix on the SoC. Apple has specifically introduced the A5X chip. It is a dual-core Cortex-A9 1.0 GHz processor and the GPU is the SGX543MP4 250MHz, using Samsung's. The 45nm process is manufactured, although it is not a good idea to look at such parameters, but at the time this was absolutely a monster-level performance, and the GPU performance was significantly ahead of Tegra 3 at the time. At the same time, the A5X has a 128-bit wide memory, uses a quad-channel LPDDR2 32-bit 800 MHz, and has a bandwidth of 12.8 GB/s, which was also a leading data at the time. However, even with the most brutal A5X at that time, the resolution of The New iPad is still too high, resulting in poor fluency, but as the iPad's first work for the Retina screen, it is definitely a classic product.
iPad 3 CPU Performance Comparison (Sunspider 0.9.1)
iPad 3 CPU Performance Comparison (Rightware BrowserMark)
In terms of CPU performance, since Apple has not started using its own CPU cores during the A5X period, there is not much difference between performance and other Cortex-A9 core SoCs.
iPad 3 GPU performance comparison (GLBenchmark 2.1 Egypt bright screen)
iPad 3 GPU Performance Comparison (GLBenchmark 2.1 Egypt Off Screen 720P)
In terms of GPU performance, the SGX543MP4 also showed a very overbearing absolute performance at the time, and it was an overwhelming performance in the Offscreen test. However, due to the high resolution, the SGX543MP4 was even not as good as the iPad 2 in light screen performance. In fact, the actual experience, the New iPad is indeed relatively poor in terms of fluency, perhaps for this reason, it was quickly replaced by iPad with Retina Display.
iPad with Retina Display (4th generation iPad, iPad 4, A6X processor)First of all, Tucao about the name of the apple mess, for a time is The New iPad, sometimes iPad with Retina Display, it is really confusing. iPad with Retina Display and The New iPad maintain the same figure, now they are too heavy and too thick. The screen has maintained a 9.7-inch Retina, but the iPad with Retina Display runs much faster, because it is equipped with a new monster - A6X.
Apple A6X processor (dual core Swift + quad core SGX554)
The A6X does not seem to be very powerful in terms of specifications. It is still the structure of "2+4" (ie, dual-core CPU plus quad-core GPU). However, Apple is mad at the self-research and development of the CPU. Swift is born and indicates that Apple In the CPU single-core performance spurt. Although the frequency is “only†1.4GHz, single-core performance has significantly advanced the processor used by the Android camp of the same period. Although the GPU is still MP4, but the core has become a much more powerful PowerVR SGX554, theoretical performance is twice the A5X. In addition, the A6X's memory bandwidth has also been increased to 17GB/s, manufactured using the Samsung 32nm process.
iPad 4 CPU Performance Comparison (Sunspider 0.9.1)
iPad 4 CPU Performance Comparison (Octane Benchmark v1)
To the iPad with Retina Display on the A6X, Apple finally introduced its own CPU core, and from here, Apple's CPU power gradually abandoned Android. In CPU single-core performance, due to the emergence of the Cortex-A15 Nexus 10 and Atom-equipped RAZR i, the CPU performance of the A6X is not yet overwhelming, but compared to the mainstream Cortex-A9 and Krait architectures. Apple's processor is much more powerful in performance.
iPad 4 GPU Performance Comparison (GLBenchmark 2.5 Egypt HD Bright Screen)
iPad 4 GPU Performance Comparison (GLBenchmark 2.5 Egypt HD off-screen 1080P)
In terms of GPUs, the iPad with Retina Display has adopted the SGX554MP4 with much more exaggerated specifications. The memory bandwidth has also been increased to 17.1GB/s, and the performance has been greatly improved. The GPU absolute performance has almost doubled that of the previous generation. In terms of fluency and games, of course, the performance will be much better. In the Offscreen test, the iPad was ahead of the Nexus 10 in the second place, with the Nexus 4 (refrigerator version) in the light-screen test and the much lower resolution at the same level as the iPhone 5.
If we consider the 9.7-inch iPad as the main line of the iPad, then the iPad Air 2 released in 2014 should be the sixth-generation iPad. Careful friends may find that we ignore the fifth-generation iPad Air, because it is the only 9.7-inch iPad that has no X suffix processor in recent years. The iPad Air used A7 and iPhone 5s are not much different. Only the CPU frequency is higher than 100MHz, so we just ignore it. As for the A8X on the iPad Air 2, the specification is indeed very exaggerated. The CPU turned out to be a triple-core Typhoon, clocked at 1.5GHz. Although Typhoon's co-frequency was not significantly increased with respect to Cyclone on the A7, the frequency was increased to 1.5GHz. With one more core, the performance of the A8X is significantly improved compared to the A7. In addition, the A8X is manufactured using TSMC's 20nm process.
Apple A8X processor (triple-core Typhoon + eight-core PVR 6XT)
And to Apple's traditional strong GPU, A8X is madly joined the 8-core PowerVR GXA6850, which even broke through the public version of the PowerVR 6XT series of the highest six-core design, can be said to be specifically tailored for Apple's GPU. And the performance of this GPU is not to be doubted. It has 256 ALU units and slightly better performance than Kepler (192 CUDA cores) on the Tegra K1 last year. Even when it comes to the current standard, it looks The performance is still at the top of the list. The A8X has also seen a significant increase in memory. The memory bandwidth has soared to 25.6GB/s, and 2G memory has been used to let the fruit powder move.
iPad Air 2 CPU Performance Comparison (Sunspider 1.0.2)
iPad Air 2 CPU Performance Comparison (Geekbench 3)
In terms of CPU performance, in the iPad Air 2 era, Apple could not be left alone, because NVIDIA's Tegra K1 (dual-core Denver version) also has a very substantial single-core performance, NVIDIA's Denver architecture and Apple's A-series chips to go The lines are a bit similar, although they all have only two cores, but the single-core performance is exceptionally strong. Denver uses the ARMv8 instruction set, has a launch width of 7, and incorporates Dynamic Code Optimization. It is a self-developed core 64-bit processor. In terms of multi-core performance, the iPad Air 2's triple-core has surpassed the Android phone's eight-core processor at the time.
iPad Air 2 GPU Performance Comparison (GFXBench Off Screen 1080P)
On the GPU side, the iPad Air 2 has been very strong, but it has not reached the level of dominance. Compared with the Nexus 9, it is only slightly better. Of course, compared with the mobile phone, iPad Air 2 still has a huge advantage.
iPad Pro (A9X processor)The iPad Pro is not a traditional iPad. You can think of it as the "stubalary task" of Apple's product development. It determines that its sales will not be particularly good in terms of its price, use, and size, but this does not affect Apple's It continues to pile up hardware. iPad Pro uses the most powerful mobile processor in history, the A9X. Its CPU performance is even more comparable to desktop-class products. Like the A9, it uses a dual-core Twister core, but its CPU speed is increased to 2.26 GHz, which also makes it perform better. The line rises to a new height. Although the A3X's three-core "shrink" to the dual-core, but because of single-core performance is too strong, its multi-core performance has also smoothly exceeded the A8X or even a lot of eight-core Android products. The A9X uses the same TSMC 16nm FinFET process as some iPhone 6s. Another outstanding feature is that the iPad Pro uses an unprecedented 4G of large memory. This specification is also considered to be the top level for Android devices. For the iOS device with the highest 2G memory, it is absolutely "massive." A9X upgraded to the LPDDR4 standard, 128bit wide, memory bandwidth up to 51.2GB/s horror, to deal with iPad Pro's 2048x2732 "quasi-3K" resolution, it should be said to be more than adequate.
Apple A9X Processor (Dual Core Twister + Twelve Core PVR 7XT)
GPU apple certainly will not neglect, this time brought us the PowerVR Series7XT graphics processor, but it is not the 8-core GT7800, nor the highest-end 16-core GT7900 (normal mobile devices can not control such a Power consumption, but a 12-core custom GPU once again for Apple, it has 384 ALU units. With such perverted parameters, performance certainly does not need to be doubted. The graphics performance of the A9X is almost twice that of the mobile phone industry's A9, and it also successfully toppled the previous Maxwell (256 CUDA core) architecture GPUs on the King Tegra X1.
iPad Pro CPU Performance Comparison (Sunspider 1.0.2)
iPad Pro CPU Performance Comparison (Geekbench 3)
From the aspect of CPU performance, the iPad Pro (A9X) is absolutely a performance of rolling grade, easily overturning the Android family, but also leading Apple’s own iPhone 6s Plus (A9). Although only dual-core, iPad Pro in Geekbench multi-core test slightly better than the first echelon of the Android Galaxy Note5 (Exynos 7420), to achieve a "2 wins 8" feat.
iPad Pro GPU Performance Comparison (GFXBench off-screen 1080P)
GPU contrast is no suspense, Android's only "strength" NVIDIA Corps in front of the A9X also appears vulnerable, let alone the mainstream Exynos 7420, Xiaolong 810 flow. The closest thing to the iPad Pro is still its own iPhone 6s Plus. For the graphics performance of this generation, whether it is a mobile phone or a tablet, Apple can be said to be unique.
Starting from The New iPad's A5X, Apple has demonstrated to the world its cost-free hardware investment. Apple's A-series processors have conquered players again and again with powerful performance. This is in line with our impression that "Apple does not fight hardware." The image does not match. Especially on the GPU side, Imagination gave Apple a strong backing and Apple also suppressed the NVIDIA based graphics processor for the time. For the latest A9X, super single-core performance, still dominate the GPU performance and exaggerated memory bandwidth are alarming, but the positioning of the iPad Pro is still a bit weird, and we still expect it to "decent" to the iPad Air Even iPad mini series.
Finally, attach the specification of SoC introduced in this article:
Yes, this article is indeed boasting that there are many cattle in the X, and the A9X on the iPad Pro is also worthy of this picture:
PS: picture material herein without the Chinese are from Anandtech and Chipworks, the rest of our website to see comparison chart can run sub-libraries: run sub satisfied.
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