SSD wins this category as it draws less power and result better battery life for mobile devicesĮxpensive, roughly $0.08 per gigabyte (based on buying a 1TB drive) More power draw, averages 6 – 7 watts and therefore uses more battery Less power draw, averages 2 – 3 watts, resulting in 30+ minute battery boost This chart breaks down the major factors of storage between HDD and SSD. The larger size allows for more platters inside and thus creating a larger storage capacity. When it comes to appearance, the most common size for laptop hard drive is 2.5” form factor while a larger 3.5” form factor is used in desktop computers.
The faster the platter spins, the faster an HDD can perform, a typical laptop drives today spin at either 5400 RPM ( revolutions per minute) or 7200 RPM, though some server based models are up to 15,000 RPM. A read/write head floats above the spinning platter reading and writing the data. Hard Disk Drives or HDD, was first introduced by IBM in 1956 and uses magnetism to store data on a rotating platter. As the controller will make decision to where it will store, retrieve, cache and clean up data that can determine the overall SSD performance. The controller is a very important factor in determining the SSD read and write speed. An SSD does not have any mechanical components to read and write data, instead it relies on an embedded processor called a controller to perform operations related to reading and writing data. A non-volatile memory is that it will not forget where the data is store when the disk is off. A typical SSD uses what is called NAND-based flash memory, which is a non-volatile type of memory.
Storing data on a chip is what makes the SSD so much faster. Like a USB memory drive, there are no moving parts, and the data is stored in microchips. SSD stands for Solid State Drive, and it’s like an oversized, more sophisticated version of a USB memory stick. SSD is also way faster – 10 times faster than an HDD.
#TYPES OF HARD DISK DRIVE PC#
SSD is also considerably smaller and takes up less space in a PC case, in some instances even mounted directly to the motherboard. What’s the difference between SSD and Mechanical HDD? The simple answer is that SSD has no moving parts and functions similarly to USB memory sticks, while the Mechanical HDD has a magnetic tape and a lot of moving parts.
What’s the difference between SSD and Mechanical HDD?