In this case, not only is first HDD faster, it is going to produce less heat and consume less electricity because it has less moving parts.
Lesson of the day: When you buy a hard disk drive, always try to settle for the one with the least number of hard disk platters highest data density. It doesn't matter whether your hard disk drive is SATA 2. Next let's talk about hard disk cache also known as hard disk buffer.
Hard disk cache is like personal RAM for your hard disk - It stores frequently accessed data and is bleeding fast compared to than the rest of the hard disk drive. Before accessing data from the hard disk drive which is a slow poke , the operating system will first check if the data is already stored in the hard disk cache. If it is, then the computer will be able to access this data much quicker, therefore leading to overall faster hard disk speed.
In the past when hard disk drives only had a miserable 1 to 2 MB of hard disk cache, it made sense to buy a drive with more cache because it would indeed be faster. However here's the catch: Once you hit 8 MB of hard disk cache, the speed gains from having more cache are negligible.
So whether your hard disk drive has 8 MB or 64 MB of cache, you're not going to see any real-world speed improvements. For more details, check out this article on Tom's Hardware where they did a speed comparison of hard disk drives with different cache sizes. Seagate Partner Program Portal Provides access to product training, sales and marketing resources, deal registration, and more to our VARs, Integrators, Resellers and other channel partners.
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On the other hand, their reading and writing speed is much lower. When it comes to buying an HDD, it is important to consider some criteria regarding expert opinions. To help you in the selection process, we have chosen the ones we consider most important.
We expect them to guide your purchase as much as possible to fit your quality-to-value ratio in the best way possible. You will not need the same type of HDD on a laptop as on a desktop computer. So, for a laptop, you will be interested in a disk size of 2. Also, is the computer you use for basic tasks, more professional use, or for playing video games? In each case, there will be a more specific type of hard disk geared toward each intention. No doubt, storage capacity is an important issue when buying a hard drive.
However, do not let yourself be guided by this alone. For the average user, a 1 TB disk is more than enough. However, it is often not given all the importance it deserves. A higher reading speed will allow the computer to boot much faster if the operating system is installed on that hard disk.
Similarly, it can also influence the performance of installed programs and applications. When playing video games, it will not decide performance, but it will reduce loading times. Currently, it is usual to find devices with speeds of and RPM, although there are some that reach RPM. For a desktop computer, if you want to enjoy good performance, go for a disk with at least RPM.
However, for laptops, the most common speed is RPM due to limitations derived from the smaller size of the 2. Hard drives have two memory areas. In one of them, data is saved even when there is no electric current. This is the main area and where files are stored. The other one is the cache memory, where information is temporarily stored when the disk receives an electrical current. The cache allows the hard drive to access information faster. This is because every time the disk reads a piece of information, it leaves part of it stored in the cache.
The most common is usually 64 MB. Logically, the larger it is, the faster the disk will find more data. Currently, hard drives can use different interfaces to connect to the motherboard.
No doubt, the SATA standard is the most used by nearly all desktops and all the latest-generation laptops.
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