If we are assembling a new PC or upgrading our machine, the memory department plays a fundamental role in guaranteeing great system speed and avoiding bottlenecks. Therefore, to build an optimal system, the choice of a SSD (solid disk) it is preferred for running programs and the operating system, while the now outdated technology HDD (hard disk), it can play the role of storage disk very well.
Choosing an SSD, however, is not so simple because there are a boundless series of acronyms related to the various disks available on the market: SATA, PCIe, NVMe etc. In this article, we see how to choose the best NVMe SSD, not only for price but also for performance, and that perfectly adapts to the needs of each user.
Editor’s note: we have updated the article to 13/02/2021 with a new addition! Happy reading and happy shopping!
Best Budget NVMe SSD

Sabrent Rocket SSD
» Click here to purchase Sabrent Rocket SSD
Corsair Force Series MP600, 500 GB
» Click here to buy Corsair Force Series MP600
» Click here to buy 1 TB Corsair Force Series MP600
Gigabyte Aorus NVMe 1 TB
» Click here to buy Gigabyte Aorus NVMe
Samsung 970 evo Plus 250 GB
» Click here to buy Samsung 970 EVO
Sabrent 256GB ROCKET NVMe
» Click here to purchase Sabrent Rocket NVMe
Crucial P2 CT250P2SSD8
» Click here to buy the Crucial P2 CT250P2SSD8
How to choose an NVMe SSD
After taking a look at the best products on the market, it is good to address some concepts that help build the choice of a fast SSD that is suitable for your needs. So, let’s tackle different topics, such as “which SATA connector to choose?” but also “what does NVMe mean and why choose this type of SSD “. To effectively explain the salient points to reach the conclusion of the previous questions, we report below what are the characteristics to look for in an NVMe SSD, or M.2 interface, performance e storage capacity.
Interface, types and performance of connectors
First, the interface indicates the method used by an SSD to communicate with the rest of the system. The better the connection between the SSD and the system, the better the overall speed of the PC, whether in file transport or program management. To connect the SSD to the system then use the SATA or PCI connector. The first, however, is the most widespread and there are different types that we are going to deepen below.
The connectors SATA 3 they are the best on the market, the most updated and fastest, also provided with backward compatibility to work on PCs that support up to SATA 2. A feature that halves the speed of SATA 3 which stands at 6 Gbit / s theoretical. Currently, almost all computers on the market support SSD SATA 3 and it is precisely for this reason that it is advisable to focus on this type of connector. On some ultrabooks and mini-PCs the equivalent of SATA 3 or 2 is the mini-SATA or mSATA also compatible with the fastest SATA Express.
However, if you are looking for a product that exponentially speeds up the speed of your system, you can focus on SATA Express technology, which blends SATA technology with that of the PCI interface, which allows you to obtain a variable speed from 10 Gbit / s to 16 Gbit / s. And if this is still not enough, the new ones have arrived M.2 connectors (used mostly on ultrabooks), which work both on SATA Express SSDs, bringing them to a speed of 16 Gbit / s, and on PCI-Express ones, reaching a speed of 32 Gbit / s. All theoretically, since it is necessary to have components capable of supporting this speed.
Finally, we finally come to SSDs that support the protocol NVMe (Non-Volatile Memory express), much more used than the other available AHCI. Almost all PCIe SSDs are also NVMe, and this technology increases disk performance and decreases latencies to respond to modern connection technologies found in all PCs.
Performance
The performance of an SSD is based on two precise characteristics: the sequential speed, expressed in MB / s (Megabyte per second) or GB / s (Gigabyte per second) which corresponds precisely to the speed with which the files on the disk are written and read sequentially and input and output operations per second (IOPS), which instead indicates the speed of writing and reading files on the disk at random and how many operations per second the disk can handle.
When choosing, however, it is also useful to take into account maximum solid disc life, expressed in millions of hours and the guarantee offered by the manufacturer. Usually this is between a minimum of 3 and a maximum of 5 years but, with high-end SSDs, it can even reach 10 years.
Storage capacity
There is no precise memory “cut” if you are looking for the best NVMe SSD, but there are some tips that can help you figure out which one to go for. In fact, not only the memory depends on the storage capacity but also the cost of each SSD, to save something you could therefore focus on a 120 GB SSD, especially if you aim to use it as a work disk while a second HDD works to store data and / or video games. A good setup would be a PC with the operating system and programs installed on the 120GB SSD while photos, videos and other files are stored on the 1TB HDD. Depending on your needs you can then go up “size”: if you have a lot of programs you can get to a 256 GB SSD or go even further, especially if you are configuring a gaming PC.
Source: Tom's Hardware by www.tomshw.it.
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