The smoothness of a mobile phone depends on a combination of factors. In addition to the processor and screen refresh rate, memory and flash memory specifications are also critical, especially when installing and launching applications. Some friends think that the bigger the memory, the better. 8GB is definitely better than 6GB, and 12GB is definitely better than 8GB.

First of all, we need to understand the difference between memory and flash memory. The memory is the running memory (RAM) of the mobile phone, which is used to temporarily store the operation data in the CPU, just like the memory stick on the computer. To give an inappropriate example, memory and flash memory are like the difference between a bowl and a pot. When we open a software, it needs to consume memory space, just like putting rice in a bowl; software that does not need to be started is usually placed in the flash memory. , as if the rice was left in the pot.

Every time we eat, we put the rice from the pot into the bowl, so the capacity of the bowl is much smaller than the capacity of the pot. The same is true for the memory rules of mobile phones. Only when we start the software will the memory capacity be consumed. It is precisely because of this special mechanism that the 6GB and 8GB memory specifications can fully meet daily use. If it is not suspended in the background, there is no need to add money to buy the 12GB version.

In addition to the memory size, memory specifications are also very important for the speed of opening software. At present, flagship mobile phones generally use LPDDR5 memory, and mid- and low-end mobile phones generally use LPDDR4X memory. There is a certain difference between the two. According to the mainstream, LPDDR5 has 50% higher performance and 20% lower power consumption compared to the previous generation. It is more power-saving under the premise of running faster. The running speed can reach up to 6.4Gbps. This is also the secret of the flagship machine running faster. One, but this record will soon be broken by new technology.

Samsung announced that it has successfully developed the industry's first new generation of memory chips based on 14nm. The official version is named LPDDR5X (low power consumption double speed rate 5X), with a maximum speed of 8.5Gbps, which is about 1.3 times higher than the previous generation. reduced by about 20%. Once commercialized, the flagship machine will run faster in the future, and some even think that it can be comparable to the speed of iOS software startup, at least it will not lose to the iPhone when opening the application, I look forward to commercialization as soon as possible, and the rapid spread of domestic machines .

Although I am looking forward to the commercial use of LPDDR5X, it may not be as fast as we imagined. It took a whole decade from the first generation technology to the second generation, from the second generation to the third generation, and the third generation to the fourth generation. It has been used for two years, and then the rule of updating every two years is basically maintained. LPDDR5 will not be commercially available until early 2020, and the alternative technology is expected to be unveiled in early 2022. The Samsung Galaxy S22 series of mobile phones is expected to be launched, more than two months from now.