Ssd m.2 là gì

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SATA M.2 SSD

SATA M.2 SSDs use the SATA interface with a maximum data transfer rate of 6Gbps which is slow compared lớn newer interfaces (more on that below). SATA-based SSDs are the lowest grade of SSDs in terms of performance và use the same interface as hard drives. Still, SATA-based SSDs have three lớn four times the bandwidth compared to lớn spinning disk hard drives. SATA SSDs are more available & affordable than NVMe SSDs. SATA M.2 SSDs can be a great alternative to a 2.5-inch SSD if you don’t have room for a 2.5-inch SSD in your computer.

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SATA has been the primary connections used for storage technology for a long time. Using SATA cables, SATA drives needed two cables to lớn work. One was used to lớn transfer data khổng lồ the motherboard và the other to get power to lớn the PSU (power supply unit). Cable clutter was one of the issues that would affect performance in PC cases when using multiple SATA storage drives. Slim notebooks and laptops including Ultrabooks don’t even have room for SATA cables which is why they utilize the M.2 size factor. A SATA M.2 form factor SSD solves this problem since it doesn’t have the two cable connections used previously in other SATA-based storage drives.

Still, just because it’s an M.2 SSD doesn’t change the fact that it’s a SATA SSD. The main difference between a SATA and NVMe M.2 SSD is the interface technology & levels of performance. A SATA M.2 SSD still uses the SATA-based interface giải pháp công nghệ which doesn’t improve its speed và performance unless it’s an NVMe M.2 SSD.


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NVMe M.2 SSD

NVMe M.2 SSDs utilize the NVMe protocol that was specifically designed for SSDs. When paired with the PCIe bus, an NVMe SSD offers the latest levels of performance và speed you can get. NVMe SSDs communicate directly with the system CPU using the PCIe sockets. Essentially, it allows flash memory khổng lồ operate as an SSD directly through the PCIe sockets rather than having lớn use the SATA communication driver which is a lot slower than NVMe.

NVMe M.2 SSDs are much more performance driven compared to SATA M.2 SSDs. By leveraging the PCIe bus, NVMe M.2 SSDs have theoretical transfer speeds of up lớn 20Gbps which is already faster compared to lớn SATA M.2 SSDs with 6Gbps. PCIe buses can tư vấn 1x, 4x, 8x, & 16x lanes. PCIe 3.0 has an effective transfer speed of up to 985 MB/s per lane which means there is a potential transfer speed of up to lớn 16GB/s. However, there’s only x2 và x4 lanes accessible when using a M.2 khung factor with the PCIe bus which translates khổng lồ a maximum transfer speed of up to lớn 4GB/s.

Is NVMe faster than SATA? Technically, yes. Modern motherboards use SATA III which has a max throughput of 600MB/s while NVMe drives provide speeds up to 3,500MB/s. The cấp độ of performance is much greater than SATA SSDs regardless of size factor. Only SSDs that utilize NVMe công nghệ exceed the transfer speed caps that limit the SATA-based SSDs.

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When deciding between an SATA M.2 SSD or an NVMe M.2 SSD, here are some things lớn consider:

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System Support - Older devices may not be compatible with NVMe as they don’t have the necessary connections to lớn utilize the NVMe PCIe sockets.Quick Start-up – Easiest way lớn make your computer system boot faster is to install the OS (operating system) on an SSD. You’ll see the greatest speed improvements with a NVMe SSD.Prioritize Storage – You can use an NVMe SSD in combination with another SATA SSD. This is an affordable option without having to break the bank. You can install your OS & resource-intensive programs and applications on the NVMe SSD & use the SATA SSD to store everything else lượt thích the smaller and less resource-hungry files, docs, etc.Gaming Advantages – You’ll see a drastic improvement in gaming load times when using an M.2 NVMe SSD. Games installed on NVMe drives will have vastly better performance overall because of the transfer speeds when recalling your games from storage.PCIe Generations – There are generations of the PCIe bus that have different levels of performance. The bandwidth doubles with each generation and there are SSDs utilizing different generations of PCIe. The latest available is PCIe 4.0 with PCIe 5.0 still on the development horizon.

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Shared Connections – Some motherboards don’t have enough PCIe connections to support multiple NVMe drives. You might have to decide on using the available connection between a graphics card or an NVMe SSD. Other times, there may be PCIe lanes available but only a certain type of connection will be able to lớn use NVMe devices at their full tốc độ such as an M.2 connection.