When purchasing a computer installed, many newcomers often ask how to pay between capacity and performance? Let us first take a look at the current situation and some basic concepts, so that you can choose according to your own actual situation.
The performance of the hard disk is determined by the interface standard, speed, and cache. In terms of interface standards, the hard drives used by the family and ordinary commercial business are mostly IDE, so the speed of purely look at the speed. Generally (theoretically) 7200 revolutions of hard drives are faster than 5400 revolutions, but they cannot be generalized when they actually purchased.
First of all, the hard disk that is identified by 7200 revolutions, due to the different manufacturers, the difference in technical strength and process will cause hard disk speed and quality. Moreover, several companies in the hard disk, such as IBM, Xie Ji, Diamond, etc., there are independent technical advantages, so buy hard drives should consider the brand, technical differences.
Second, it is your use. If your machine is basically online browsing, processing documents and general games (not 3D class is extremely high for system performance), nor does it intend to make alternative explorations such as overclocking, and can say that 5400 revolving hard drives and 7200 hard drives are not separate! Some people may say that I am misleading. In fact, the difference is of course, since the identity is different, the speed is now existed. But in those applications, this so-called quick slow, I dare to guarantee that people can't feel, but your money has obvious "difference", the same capacity hard drive, 7200 turn is generally more than 5400 If you are 150 ~ 200 yuan, you will consider whether it is worth this difference. If you want to perform audio video big data processing, play large 3D games, I will also recommend buying 7200 revolutions of hard drives, and even recommend a hard drive for the SCSI interface.
It is the cache. Due to the large number of internal components, the various components should be transmitted, the bus interface, etc. transmit data, and sometimes the data cannot be synchronized to reduce the performance of the machine - Generally, the CPU speed is higher than other computers. Accessories are fast, the speed of memory is much faster than the disk, so you can enhance the access "hit rate" of the data in the hard disk, thereby increasing the overall speed and efficiency. Therefore, the hard disk's cache is a very important factor, but novices often pay attention to this, only pay attention to the brand, but spend money but has not yet obtained the high performance.
In terms of my personal experience, general use, I would rather choose 2M cache, 5400 revolutions of big hard drive (more than 40g), IBM IDE interface Tenglong three generation 60GXP 20AVER07, 20G capacity, UDMA 100 transmission mode 2M cache, 7200RPM, warranty for three years, the market is generally 810 yuan; while the star drill generation / 33073H3, the capacity is 30.7GB, but also UDMA 100 mode, 5400 turn, 2M cache, the same guarantees for three years, the current market price is 850 yuan - - The difference between the two reaches 10g, the price is only 40 yuan, the 10G capacity of the 40 yuan can buy, far more than the performance difference between 7200 revolutions and 5400 revolutions, more than 5400 turn Hard disk technology and process are developing to a fairly mature stage.
Perhaps some IBM and 7200 turn hard disk will refute my "considerable argument", saying that IBM has strong technical strength, selling itself, and in the future application will not limit in ordinary use, buy 7200 turn The hard disk can save data transfer and processing time for future advanced applications ... But I want to say, even after the application upgrade, this more 10G capacity can be reasonably utilized, can offset or even exceed 7200 The speed difference between 5400 revolutions. For example, you can use this 10G as a backup of GHOST multiple partitions or different Windows systems. So when your Windows has problems, it will save the trouble of reloading - you calculate the time to reload Windows flowers How much is it still more than 7200 turn? To know that Windows's reload is home to it.
For example, you can use this more 10G to make a virtual optical drive, remove you turned to find the trouble to switch the game CD switch, you calculate the time of finding the CD, the box, into the box, and other optical drives, than 7200 How is the 5400 revolutionary difference? What is a meteoric number? Some people may say, I bought a computer is a job and study, don't play games! Hey, don't boast, now have several people buy the computer going back to play games? Even if you don't play, your family may play - I will talk about 10,000 steps, even if you just learn, you can use the large capacity to "open the sky", "walk all over the United States" multi-CD learning series to do the hard disk , Not only the time saving time, but also avoid blindness of the CD-ROM and the genuine CD, one arrow double carving, why not?
Also, I believe that people who love music in computer users are not a few, so they can make MP3 or WMA format stored into the hard disk, and it can also bring great convenience. The above is all the largest capacity of the computer, the advantages of high speed, and the speed performance of the hard disk having a large capacity, low speed, can be compensated by the speed advantage of the CPU, motherboard and display card; and high capacity, high speed Hard disks, its less storage space cannot be made upset by anything.
Therefore, the hard disk of the same price, large capacity, low speed, low speed, should be fine, and the choice of ordinary application users, where the cache is large and prioritized. Of course, the capacity is large, the speed is high, and the buffered hard disk is the best choice, as long as you spend money!
