Why is pci express better

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Authentication vs. Authorization: What is the Difference? The differences between the two interfaces are discussed below:. The PCI Express interface has a high-speed serial expansion card format which uses point to point interface. This is the interface mainly used to connect Graphic cards. PCI Express based SSDs are plugged into an expansion slot on the motherboard that provides both data and power connection.

In case there is an indirect connection using cables, this will result in high latency which affects the maximum potential of the SSD.

For example, PCIe 3. Before diving into the differences between the two types of drives, you should first understand a few of the terms and acronyms that are used. While both interfaces can connect an SSD, several differences can influence your choice.

Depending on your needs and budget, either could fit the bill for storage. The mounted drive and the necessary cable to connect it also take up space. This makes it an ideal choice for builds with limited space. The most recent iteration of the SATA interface 3. While 6 GB per second is blindingly fast compared to older methods of data transfer, it pales in comparison to PCIe 3. In addition, PCIe also exists in 4.

However, few commercially available, consumer-grade motherboards support PCIe 4. As manufacturers introduce more compatibility, the potential speeds for PCIe will increase.

If you're upgrading an older system, the motherboard may not have a PCIe slot available, or one compatible with newer solid-state drives. On the other hand, a SATA cable works with most systems made in the last two decades. It's almost guaranteed to work with any system functioning today. SATA cables connect through a port on the motherboard. If you need to connect a large number of drives, SATA is the better option. The majority of motherboards don't have enough PCIe slots for multiple solid-state drives.

While this is a breakthrough device, it's not meant for consumer use with its rather high price point. PCIe, on the other hand, tends to top out around 2 TB. For more things to consider, see below. While there's a lot of information to digest surrounding both types of solid-state drives, the type to pick boils down to two things: intended usage and case size. These drives have higher storage capacities that are ideal for storing raw files, with the transfer speeds necessary to ensure games load quickly and videos scrub without issues.

On the other hand, if you're building a machine that has no other purpose than surfing the web, checking email, and word processing, a PCIe drive is a great option. The direct-to-motherboard connection takes up less space and gives you fewer cables to manage. While the storage capacity may be lower, you won't need massive amounts of storage for minor tasks—and you can always upgrade to more storage later if you need it.