We often regard computers as the crystallization of human science and technology. This is indeed the case. A computer involves many technologies. The computer consists of display screen, motherboard, memory, CPU, graphics card, storage, sound card, network card, etc. We can not imagine the technology involved in the production and upgrading of each component. And we can not imagine the core “operating system”. Each component consists of many smaller components. As long as any one of the steps goes wrong, it will affect the whole computer. Today we will talk about memory chips.
We can regard memory chips as a bridge between CPU and hard disk. In general, we refer to the following aspects when purchasing.
The larger the memory capacity, the simpler the CPU can cope with a large amount of data. The capacity cannot affect the performance of our computer. But as for how much memory is needed, it depends on your own needs. If you use the computer to do some professional things, you may need at least 16G of up memory. If it’s just a simple game, 8G of memory is enough.
DDR3 and DDR4, which released on the market, refer to several generations of memory chips. DDR3 is the third generation memory module and DDR4 is the fourth generation. The higher the algebra, the higher the limit frequency it reaches, and of course the stronger the performance.
In 2002, DDR1 generation memory chips came into everyone’s eyes. At that time, its frequency was only 333 ~ 400MHZ and its capacity was only 512M. Two years later, computer entered the era of DDR2. The limit frequency of the second generation of memory chips can reach 1333MHZ. But designer has eliminated it. In 2007, designers released the third generation of memory chips. The common frequency of the third generation of memory chips could reach 1600MHZ. The limit can reach 2800MHZ. Nowadays, some old-fashioned computer have this chip. According to current prices, the three generations of memory chips are cost-effective.
Until 2014, the fourth generation of memory chips came into the market. It has larger capacity and higher frequency. And the performance has improved. The lowest frequency of the fourth generation of memory chips can reach 2133MHZ. The lowest capacity is 4G. And the performance improvement is far better than that of the previous generation. At present, some mainstream computers on the market use 4 generations of memory. We can take new HONOR MagicBook Pro as an example. It has 4G memory, with a capacity of 16G and a frequency of 2400MHZ.
Memory timing is an advanced and important parameter. Memory timing is four parameters. These parameters can describe the performance of synchronous dynamic random access memory (SDRAM). They are CL, TRCD, TRP and TRAS. The unit is clock cycle. These parameters specify the delay time (latency time) that affects the memory random access speed. The lower the timing, the faster the seek.
Well, let’s introduce the simple popular science of memory here. I hope this article can help you.