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The speed of the hard disk: that is, the speed of the spindle of the hard disk motor, the speed is one of the key factors that determine the internal transmission rate of the hard disk, its speed greatly affects the speed of the hard disk, and the speed is also one of the important signs to distinguish the grade of the hard disk. The spindle motor of the hard disk drives the platter to rotate at high speed, creating a buoyant force that causes the head to float above the platter.
The faster the rotation speed is to bring the sector to which the data is to be accessed under the head, the shorter the waiting time. Therefore, the rotational speed determines the speed of the hard disk to a large extent.
At present, the common hard disk speed on the market is generally 5400rpm, 7200rpm, and even 10000rpm and 15000rpm. Theoretically, the faster the rotation, the better. This is because higher rotational speeds reduce the drive's average seek time and actual read and write time.
However, the faster the speed, the greater the heat, which is not conducive to heat dissipation. The current mainstream hard disk speed: home:
7200rpm (mainstream notebooks are also 7200rpm); Commercial: 10,000 rpm or 15,000 rpm (for servers)
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In the early days, there were 4200 rpm, 5400 rpm, and now the mainstream is 7200, but there are higher 10000 rpm, which should not be common on the market, the faster the speed, the faster the access speed.
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Directly affecting the speed of data reading and writing, home desktop computers are generally 7200 revolutions, servers are generally 10,000 revolutions, notebooks are generally 5400 revolutions, and the units are minutes.
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If you turn fast, the reading speed must be fast.
There are also 5400 rpm ones.
However, now the mainstream ones are 7200
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Laptops are generally 5400 rpm, desktops are generally 7200 rpm, and servers are generally 10000 rpm.
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Yes, of course! Not all the time, though, at 7200
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It's really fast.,At present, the notebook uses more than 5400.,4200 should be eliminated if I haven't seen it almost before!
At present, 7200 mostly uses desktop computers, 1000 rpm I haven't seen it, at least I haven't seen it at home, and it may be mostly used for servers.
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The differences between 5400 rpm and 7200 rpm are as follows:
1. Generally speaking, 7200 rpm is better than 5400 rpm hard disk to improve the performance of the computer to varying degrees, the faster the hard disk works, the greater the power consumption, and the heat dissipation will be much higher than that of the low speed.
The temperature of the hard disk is higher than that of the 5400 revolution, and the read and write speed is also relatively fast. Compared with 5400 rpm hard drives, 7200 rpm hard drives can better meet the needs of users in terms of transfer rate.
3. For a 7200 (rpm per minute) hard disk, the time required for each rotation is 60 1000 7200 = milliseconds, and the average rotation delay time is milliseconds (on average, half a revolution is required). For a 5400 (revolutions per minute) hard drive, the average rotation delay time is 60 1000 5400 2 = milliseconds.
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7200's, of course. The faster the speed of the hard disk, the faster the data reading speed, the better the performance, the 5400 hard disk is much lower than the 7200 hard disk, so you have to buy a 7200 hard disk.
Is there a big difference between 7200 rpm and 5400 rpm?
1.The average rotation delay of the hard drive is 60 1000 7200 2 milliseconds.
5400** per minute) with an average rotation delay of 60 1000 5400 2 = milliseconds.
7200 rpm is theoretically 15% faster than 5400 rpm
2.The transmission rate is different.
The faster the speed, the shorter the waiting time, and the 7200 rpm laptop hard drive can better meet the user's needs in terms of transfer rate compared to the 5400 rpm laptop hard drive.
3.The noise is different.
The speed of the laptop hard drive is basically proportional to the noise, the higher the speed, the louder the noise. The 7200 is noisier than the 5400. Contains early (5400 is recommended if you like quiet, not much worse).
4.Power consumption is different.
The faster the hard drive runs, the greater the power consumption and the heat dissipation will be much higher than that of the lower speed. For notebooks with the same configuration, the temperature of the 7200 rpm laptop hard drive is higher than that of the 5400 rpm. <>
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In recent years, with the continuous development of technology, more and more people have begun to understand and use computers. Hard drives are an important choice factor when buying a computer, as different drive speeds and** will have an impact on your computer's performance and experience. Therefore, this article will introduce the advantages and disadvantages of 5400 rpm hard drive and 7200 rpm hard drive in detail for users' reference.
First, let's take a look at the 5400 rpm hard drive. Compared to the 7200rpm HDD, the 5400rpm HDD is more energy-efficient when used because it spins slower and reduces energy consumption. In addition, the 5400 rpm hard drive** is more affordable than the 7200 rpm hard drive, which can meet the needs of some users with a limited budget.
However, it should be noted that the 5400 rpm hard drive has a slower read speed and may experience stuttering, especially when dealing with large amounts of data.
Next, let's take a look at the 7200 rpm hard drive. Compared to a 5400 rpm hard drive, it has a faster read speed and can handle large amounts of data better. In addition, the 7200 rpm hard drive has better durability and is more suitable for long-term use, so it is more common in the business environment.
However, the 7200 rpm hard drive** is relatively high, which can be overwhelming for some users on a budget.
To sum up, the choice of hard drive should be decided according to the user's needs and budget. If you need to process a large amount of data or need higher read speeds, a 7200 rpm hard drive may be more suitable. If you're on a budget or just for everyday use, a 5400 rpm hard drive may be a more practical option.
Of course, before making a decision, users should also consider other factors such as storage capacity and brand credibility to ensure that they choose the best drive for themselves.
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