Differences of ssds speeds and interfaces

omar80747326

Honorable
Dec 16, 2017
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What's the difference between the following in speeds, performance and best operating interfaces? :
1- m.2 nvme and m.2 sata ssds
2- nand ssds and regular ssds of m.2 or sata
 
Solution
NVMe drives are the cream of the crop on today's market. They connect via M.2 and communicate with the PC through PCIe lanes, and have the fastest read/write speeds.

There are M.2 motherboards that use the SATA interface for data transmission. That is where you'd want a SATA M.2 drive.

NAND (Negative-AND) is the type of logical gate, or circuitry, that the flash chips use to access the storage.

NVMe Drives are the fastest, followed by SATA M.2, followed by SATA 3.0.

https://en.wikipedia.org/wiki/NAND_gate
https://en.wikipedia.org/wiki/NVM_Express

theyeti87

Honorable
NVMe drives are the cream of the crop on today's market. They connect via M.2 and communicate with the PC through PCIe lanes, and have the fastest read/write speeds.

There are M.2 motherboards that use the SATA interface for data transmission. That is where you'd want a SATA M.2 drive.

NAND (Negative-AND) is the type of logical gate, or circuitry, that the flash chips use to access the storage.

NVMe Drives are the fastest, followed by SATA M.2, followed by SATA 3.0.

https://en.wikipedia.org/wiki/NAND_gate
https://en.wikipedia.org/wiki/NVM_Express
 
Solution

TJ Hooker

Titan
Ambassador
M.2 is a form factor (physical shape/dimensions). It is in contrast to the traditional 2.5" form factor that many SSDs come in. It has no inherent effect on speed.

NVMe is an interface that operates over PCIe. PCIe/NVMe drives offer higher performance than SATA, although the difference in noticeable, real world performance isn't always that great. NVMe drives can be found in the following form factors: M.2 (most common), PCIe add in card, 2.5" drive (PCIe 2.5" drives are referred to as U.2 drives, these are rare)


There is no difference inherent speed difference between SATA M.2 and SATA 3.0
 

theyeti87

Honorable


You are correct, I should have pointed that out! :)