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An SSD (Solid State Drive) is a type of storage device used in computers. This nonvolatile storage medium stores permanent data in solid-state flash memory. SSDs replace traditional hard disk drives (HDDs) in computers and perform the same basic functions as a hard disk drive. However, SSDs are significantly faster in comparison. With an SSD, the device’s operating system boots faster, programs load faster, and files can be stored faster.
A conventional HDD consists of a turntable with a read/write head on a mechanical arm called an actuator. An HDD reads and writes data magnetically. However, the magnetic properties can cause mechanical failure. By comparison, an SSD has no moving parts that can break or flip up or down. The two main components of an SSD are the flash controller and the NAND flash memory chips. This configuration is optimized for high read/write performance for sequential and random data requests.
Differences between PCIe SSD and SATA SSD
What is a SATA SSD?
SATA SSDs look like flat, rectangular laptop hard drives like the Samsung pictured above. They are the lowest class of SSDs and use the same interface as hard drives. However, a PC using a SATA SSD has three to four times the bandwidth (that is, the amount of data that can be read and written simultaneously) than a PC using a hard drive. SATA SSDs are also more common and cheaper than PCIe NVMe SSDs and are still great for common applications.
What is a PCIe SSD?
PCIe/NVMe/PCIe-NVMeSSD are a type of SSD. PCIe stands for Peripheral Component Interconnect Express and NVMe stands for Non-Volatile Memory Express. A PC using the fastest PCIe-NVMe SSD will read and write at four to five times the speed of a PC using a SATA SSD. As a result, PCIe NVMe SSDs are better and more expensive than SATA SSDs. To install a PCIe-NVMe SSD on your motherboard, you need to purchase a motherboard with PCIe slots.
Differences of PCIe SSD and SATA
- interface speed. PCIe provides faster interface speed than SATA. An SSD connected through a PCIe 3.0 x16 interface can have a link speed of 16 Gb/s. In contrast, the SATA 3.0 standard only provides 6.0 Gb/s
- Compatibility. SATA is an older interface and can be used to connect HDDs and optical drives of various ages. PCIe SSDs are somewhat newer and may not be compatible with all systems.
- Ability. SATA SSDs tend to be available in larger capacities up to 4TB, while the higher end for PCIe SSDs is usually 2TB.
- Size. SATA SSDs tend to fit into the same 2.5-inch physical enclosure that fits traditional HDDs. The PCIe SSD, on the other hand, physically connects to the motherboard slot interface.
- Cost. PCIe SSDs have a higher cost per gigabyte than SATA SSDs.
- Density. Modern motherboards tend to have more SATA ports available to connect more drives in a given compute chassis than PCIe interfaces.
PCIe SSD or SATA SSD, which type of SSD is right for you
Your decision between PCIe and SATA SSDs depends on two important factors. First, your budget and second, your expectations in terms of performance. If you are on a tight budget, you should go for SATA. If you need maximum performance for frequent file transfers, you should go for PCIe. Both are more convenient to use in the M.2 form factor.
If you’re currently using an HDD, you’ll be fine with one or the other. Both SATA and PCIe SSDs have been shown to outperform HDDs in terms of speed, so you can’t go wrong either way. If you have decided to go with PCIe, you should also read more about the different versions to make sure you make the right decision when buying.
Final words: What Are The Differences Between PCIe SSD and SATA SSD?
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