In the past two years, with the 14nm LPP process and balanced CPU and GPU performance, Xiaolong 625 has firmly established the name of "a generation of God U". However, with the soaring demand for Android platform performance, Snapdragon 625's weak 8-core A53 architecture is gradually showing weakness. Later, Qualcomm Squeeze toothpaste came out with Snapdragon 626 (the highest official standard is 2.2G) and 630 (4 * 2.2G+4 * 1.8G), but the A53 framework has been unable to support today's application experience.
If the appearance is better, this is really a good machine
Until the beginning of this year, Snapdragon 636 made its debut in Hongmi Note 5 Pro (India), and its domestic enhanced version, Hongmi Note 5, did not unexpectedly make its debut in China. From the actual performance, Snapdragon 636 is the most likely SoC to succeed Snapdragon 625 in the name of "U, the Goddess of the Generation", After all, it is the only entry-level SoC with four A73 (Kryo 260) core products, and a large wave of machines such as the Meilan E3 launched later are likely to use it.
Here are the results:“ The new version of the ship that Jiesili has never taken a shot at. It can experience three times of demand, and Li Zao will do the same thing as me. Love is like an intermediary SoC ”。
Parameters and analysis
Snapdragon 636 was released at the Hong Kong Communication Summit on October 17, 2017. Its performance and positioning are between Snapdragon 630 and Snapdragon 660. They share the same platform, so the manufacturer can easily transplant it, and even view it in many software. The main board data information of Hongmi Note 5 shows this 660 character.
Snapdragon 636 is also based on the 14nm LPP process, and the CPU part is 4 * 1.8 GHz Kryo 260+4 * 1.6GHz Kryo 260, large core and small core are Qualcomm's semi autonomous architectures modified based on A73 and A53 respectively. Qualcomm uses the same name for two different architectures on the same SoC, which is quite confusing. Its GPU is Adreno 509.
Qualcomm claims that the CPU performance of Snapdragon 636 is 40% higher than that of Snapdragon 630, while Xiaomi claims that the CPU and GPU are 40% higher than that of Snapdragon 625. Although the upgrade ranges of the two companies are different, it is certain that there will be a significant improvement in performance.
Snapdragon 636 is jokingly called the youth version of Snapdragon 660, which maintains the same ISP, DSP and baseband:
Spectra 160 ISP , is a two-way ISP, supports up to 14bit output, 24 million pixel zero delay shutter, supports multiple hybrid focusing modes from laser to phase, hybrid camera's "optical zoom" and other features
Hexagon 680 DSP , supports full time perception, and can cooperate with ISP for image and deep learning processing;
X12 LTE baseband , the maximum download peak is 600Mbps, and the upload peak is 150Mbps
The last two are the products of Snapdragon 820/821, which are several streets ahead of the same level products of MTK, Exynos and Kirin. The Spectra 160 ISP is a compact version of the Spectra 180 on Snapdragon 835, which also supports Bluetooth 5. In terms of positioning support, from GPS and GLONASS to Galileo in Europe and Beidou in China. But two channels LPDDR4X frequency is only 1333MHz, and Snapdragon 660 is 1866MHz. On 802.11ac WiFi, Snapdragon 636 has only 433Mbps The Snapdragon 660 has 867Mbps.
But considering the price and positioning issues, on the balance of allocation, Snapdragon 636 is the best Samsung Exynos 7872 (The one on the magic blue S6). Although the maximum main frequency is only 1.8G (the 7872 is 2.0GHz), the Snapdragon 636 has undergone Qualcomm's semi customized modification in its architecture, and has four large cores. In addition, GPU, baseband, and DSP are all competitors at this price point. After all, this is an entry-level product that uses the former flagship accessories. As long as the supply price and quantity are not unfair, Snapdragon 636 is likely to take over the name of "God U" from Snapdragon 625 civilians.
Actual performance test
This time we are Snapdragon 636 (Red Rice Note 5). The competitors we have found include "Snapdragon 450, Snapdragon 625, Snapdragon 630 and Snapdragon 660" Qualcomm Family Buckets, which are ranked from low to high, and Exynos 7872 (Magic Blue S6), which was also launched this year. Don't talk nonsense, go straight to the conclusion, and the detailed scores are as follows:
CPU： Snapdragon 636 is second only to Snapdragon 660 in terms of single core and multi-core, and the gap between multi-core is larger, It completely crushed the Xiaolong 630/625. Only the single core of the Exynos 7872 can play a little (in the RAR single thread test, the 7872 even beat the Snapdragon 660 of the 2.2G semi autonomous architecture A73), but the latter has a small number of cores, and the multi-core performance is very difficult. Although the large core Kryo 260 is only 1.8G, the single core performance is a winner or loser against the Exynos 7872's 2.0G A73 (the reason may be that Qualcomm's modified A73 has obvious effect, or Samsung's A73 is not well digested).
Memory: The results in memory performance also coincide with those in CPU, Single core scores differ significantly, but Snapdragon 636 multi-core memory scores are average 。 In the triple combination multi-core performance, Snapdragon 630 beat 636 in a cold manner, and the memory latency of Snapdragon 636 was high enough to break the record again.
GPU： The increase in this area is far less than that of CPU, Snapdragon 636 can only be said to be better than Snapdragon 630, and there is a huge gap between Snapdragon 630 and Snapdragon 660 。 With the 2160 * 1080 "full screen" with higher resolution than before, the actual game performance will not be much better than Snapdragon 630, or even better than Red Rice 5 and Magic Blue S6 on 720P+screen, which is the biggest regret of Snapdragon 636. But after all, the price is here, and the CPU part can be upgraded significantly. It is considered that Qualcomm has mercifully squeezed a lot of toothpaste.
Flash memory reading and writing: all 6 test machines are eMMC, Hongmi 5 and Meilan S6 are 32G storage, Nokia 7, Hongmi Note 5 and Hongmi 5 Plus are 64G, and Xiaomi Note is 128G in three bits. The flash memory performance of Hongmi Note 5 is relatively excellent. Except for random reading, it is the fastest. In addition, all items of Meilan S6 storage are at the bottom
Details of test results
CPU operation performance test
Memory performance directly affects the speed of application startup and task switching
GPU graphics performance test directly affects the game experience
Storage performance test, affecting application startup speed
Power consumption test
Carry out power consumption test through GPUGFLOPS 1.0 of Gunshen @ ioncannon (software test, results are for reference only). The above tests are 8-core fully open CPU floating point, CPU integer and CPU MIX2 (add cache). The most stressful test is MIX 2, and the smallest is CPU integer test.
In Hongmi Note 5 On Xiaolong 636, regular fluctuations similar to "ECG" occur under heavy pressure load, affecting the overall performance, The reason is not clear. It can be confirmed only after other Snapdragon 636 models (Magic Blue E3?) are tested again.
In terms of actual power consumption, the power consumption control of Snapdragon 636 is really hard to say (straight to the conclusion, the following is the data summary and original data):
The average power consumption of the project with the highest energy consumption failed to exceed 2.7W;
The single large core is only 0.66W, and the single small core is only 0.21W;
The increase of core number and performance is completely linear, and there is not too much heating pressure in single baking;
At room temperature, the frequency of CPU and GPU is double baked. Although the small core is reduced to 633MHz, the large core still has 1.8GHz, which is very strong. At this time, the power consumption still does not exceed 2.7W.
NBA 2K15 in 30 minutes, the maximum temperature of the front and back fuselage is about 42.8 degrees, which is quite stable
Power consumption of different tests after deducting 450mW no-load power consumption
Floating point power consumption of different cores after deducting 450mW no-load power consumption
Raw data of different tests, power consumption unit: mW
Follow our Weibo @ Love Computer
Follow our WeChat official account: playphone
Of course, we also pay attention to our Bilibili account: love computer
