Neglected eMMC - A1 SD Bench flash memory test | Ainongji - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

For a long time, people have paid more attention to the CPU and GPU architecture, frequency, number of cores, etc. in terms of mobile phone configuration, but often ignored the speed of mobile phone flash memory. In fact, the quality of mobile phone's flash memory also plays a decisive role in the response to daily operation and loading speed of mobile phones. Today, we introduce an application that can test the speed of mobile phone's flash memory - A1 SD Bench.

A1 SD Bench is an application that can test the speed of built-in flash memory, external TF card, external storage device and RAM. It can be found on Google Play. Considering that the "network environment" is relatively closed recently, we also provide a download link here: (For example, the latest version 2.1.0 downloaded from Google Play is not a bad Chinese version)

After installation, you can directly enter the application interface. The menu is clear at a glance. Maybe the developers are lazy. The whole layout still follows the style of Android 2. X. Of course, that's not the point. It's easy to use ▼

Before testing flash memory, we need to open Settings, click "Advanced benchmarking", and understand that the way of testing flash memory will become more diversified and the results will be more referential ▼

Back to the main menu, click the built-in storage or external storage chip we need to test, and a menu of four options will appear. Click "Accurate with reboot" here, and this option is to test the continuous read/write speed of the mobile phone flash memory. As the name implies, this is ▼ that needs to be restarted

During the test, the user will be asked to restart. After restarting and entering the application again, the countdown will begin. Click OK and wait for a moment to get the final result (pay attention to the first item "SD Card") ▼

The second tab is a comparison of the user's latest upload results. The interaction of the list is not very good, and the comparison is not intuitive ▼

The latest version of A1 SD Bench is 2.1.0 ▼

Here we also list the speeds of various built-in/external memory chips for reference only（ Hammer, Xshot, S5 LTE-A, G3 and Z7 Max are all 32G, and Xiaomi 4, Yijia, Glory 6 and M8 are all 16G ）：

From this chart, the speed of the eMMC flash memory stored in the mobile phone is very different, and many high-end mobile phones use eMMC 5.0 (only Snapdragon 801 and Snapdragon 805 Support this technology) standard flash memory, which makes their reading and writing speed significantly exceed eMMC 4.5 and other external storage products. Among them, the Hammer mobile phone is a fighter in eMMC 5.0. Its reading speed is higher than that of other eMMC 5.0 mobile phones, and its writing speed is much faster than that of other eMMC 5.0 mobile phones. The average level of mobile phones using the eMMC 5.0 standard is quite high. The reading can reach more than 220MB/s under normal operation, and the writing can reach more than 70MB/s Millet 4 The write speed of is slightly poor. While using Toshiba chips (some batches use Samsung chips, the writing speed will be much higher) Glory 6 Compared with HTC M8 and Z7 Max using eMMC 4.5, there is also a big gap. In terms of external storage, in addition to Sandisk's ultra high-speed Extreme Pro In addition, the tf card OTG flash disk There is a big gap between the speed of mobile phone eMMC and that of mobile phone eMMC. Mobile phone flash memory has a direct impact on the loading speed, application installation speed, and file processing speed in daily use. It has a lot to do with user experience. I hope that major manufacturers will not only focus on the "core" competition, but also make the overall performance of mobile phones go up to a higher level without leaving any shortcomings.