The difference between sata3.0 and m.2

The difference between sata3.0 and m.2

SATA interface

The SATA interface is very It is common. It can be said that every motherboard has a SATA interface. The highest version currently is SATA3.0. Mechanical hard drives also use this type of interface. The maximum transmission speed of the current mainstream SATA 3.0 channel is 6Gbps, and the maximum actual speed is 560MB/s.

M.2 interface

M.2 is a new interface for solid-state drives and is an alternative to MSATA launched by Intel New interface specification, full English name: Next Generation Form Factor.

M.2 interface is divided into two types, supporting SATA channel and NVME channel respectively. SATA3.0 only has 6G bandwidth, which is faster than ordinary SATA solid-state drives. The difference is not big, just the interface difference. The latter uses the PCI-E channel, which can provide bandwidth up to 32G. As a new generation storage standard, NVME has sufficient bandwidth due to the PCI-E channel. , the room for improvement is huge and the transmission speed is faster, but the price is also much more expensive.

The difference between SATA interface and M.2 interface

● M.2 interface solid state drive is smaller than ordinary SATA.

● When using the SATA channel to perform data operations, the data will first be read from the hard disk to the memory, and then the data will be extracted to the CPU for calculation. After calculation, it will be written to the memory and finally stored in the hard disk.

● Through the PCIE channel, the data is directly connected to the CPU through the bus, which is close to the maximum transmission speed and the maximum amount of data. It directly eliminates the process of calling the hard disk from the memory, so the speed is faster.

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