Many users who have just come into contact with the computer will first go online to learn how to choose from the pit before buying the computer. More articles may be about the introduction of the CPU and graphics card or a detailed analysis, Metro will tell people who want to buy a computer CPU and graphics card How strong is the performance?
That's right, CPUs and graphics cards are indeed an important basis for determining whether a computer is powerful. Relative to these memory and hard disks, there is not much concern, but small and small do not mean no effect, and even less does not mean that the impact is small.
In fact, computer development to today, the bottleneck of computer performance has long been a processor, in the Core Age era, pure processor performance has been able to meet the daily office and audio and video needs of users. In today's computers, mechanical hard drives are the constraints of the entire The key point of computer performance, and memory as the only channel of the hard disk and the processor has been very smooth, and the performance can keep up.
Hard disk is very important to users
The choice of hard drive for laptops is very flexible. For most current notebook products, the self-selected configuration often leaves memory and hard drives. In addition to the ultra-thin products, the normal mainstream notebook can have a 2.5 One inch hard disk and one or more M.2 interface SSDs. So we can see from the interface, the manufacturer's design idea is a combination of a solid state drive and a mechanical hard drive, which is the standard configuration of the current mainstream notebook.
Personally, I personally believe that when purchasing a computer that can simultaneously install solid-state and mechanical hard disks, If you can choose not to use a mechanical hard disk, then it's best to buy a piece of your own. It's definitely cheaper than the standard feature. The SSD depends on whether you understand it. If you don't understand it, look at the budget. A relatively high cost performance is good.
In today's computer hardware, hard disks are more hardware than the CPU's impact on system fluency, so to make your computer use smooth and comfortable, then buying a SSD is a worthwhile investment. As it has been used for many years solid state For the hard disk, if I choose between a single 128GB solid state and a 1TB mechanical hard disk under a limited budget, I would still choose a SSD. The speed of a mechanical hard disk is really slow, especially for most notebook hard drives today. Still stuck in the era of 5400 rpm 8m/16m cache.
If everyone has no concept of mechanical and solid-state hard disks, then the author will make a set of speed comparisons. The effect is obvious. As you can see, I found that the slowest speed of the SSDs is compared with the mechanical hard disk. The speed gap is extremely obvious. No matter whether the reading speed or the writing speed is far beyond the mechanical hard disk, the read/write speed and access time of 4K small files are several times faster than the mechanical hard disk. Most of our daily computer use is actually reading small files. Take, so the SSD will bring the performance of the explosion mechanical hard disk in the actual experience.
The mechanical hard disk seeks through the magnetic head on the disk. It is still better to access continuous files. However, once there are a large number of fragmented files, the heads must constantly search for data on the disk. The resulting delay will be slow.
At present, mechanical hard disks are only suitable for use as warehouse trays. The advantage of cost-effectiveness is that mechanical hard disks can continue to live for a long time. After all, the prices of large-capacity solid state hard disks are still too high. Solid state hard disks are very likely to be the general trend in the future, and mechanical hard disks will Will be abandoned by many people, not bad friends or worth considering buying a large-capacity SSD, especially for friends who often carry notebooks, the solid state in terms of security is also better than the physical structure of mechanical hard drives.
Many people will hesitate to choose between SSDs and MLC particles when choosing solid-state drives. Because TLC particles have lower price and higher performance, their lifetime is not as good as that of MLC particles. In fact, there is absolutely no need for them. Concerned about the life of TLC particles, in fact, according to ordinary people's habits, a 128GB TLC SSD may take 10 years to reach the end of life, because we are actually reading more data, and we have more capacity. The lifespan of SSDs will increase accordingly, even if it only takes four to five years to be scrapped, do you think that a 128GB hard drive will not be able to be used after 48 years? Of course, if the data security Considering more, the choice of MLC particles or even SLC particles is certainly more secure.
Users choose memory according to their needs
Let's talk about memory. At present, there are two kinds of memory that are common in the market, DDR3 memory and DDR4 memory. In terms of actual performance, due to the effect of timing, DDR4 2133 CL15 memory has high read and write performance, but it has a memory delay. But it is higher than DDR3 1600 CL11 memory.
According to the results of the DDR3/DDR4 memory test, both DDR3 1866 CL11 performance and latency are stronger than those of DDR4 2133 CL15 memory. It can be seen that the memory timing also affects the performance and is equivalent to DDR4 read-ahead design. The performance is at a disadvantage when the frequency is as low as DDR3 memory.
In practical applications, slight differences in memory performance do not make the performance of the whole machine significantly different, but DDR4 memory is lower than DDR3 memory due to operating voltage. There is no difference in performance. Variety.
The last is the capacity issue. 8GB of memory is sufficient for current mainstream users. When buying a notebook product, you can pay attention to whether or not this notebook has an extra memory slot. If yes, you may choose to add 4GB of memory and add your own memory. It can save a little money. And for users who often play some stand-alone masterpieces, 16GB memory is necessary, because some perverted games especially like to eat memory and video memory, for the smooth game, it is recommended to choose 16G or add to the above capacity .
