Samsung 980 250GB NVMe M.2 SSD (PCIe 3.0): features, specs and who it suits

The Samsung 980 is an internal NVMe solid state drive in the M.2 2280 format, using a PCIe 3.0 x4 connection. This listing is the 250GB model (MZ-V8V250B/AM). It suits PCs and laptops that need fast storage for the operating system, applications and games.

What NVMe and PCIe 3.0 x4 mean

NVMe is a protocol designed for flash storage, and it talks to the computer over PCIe lanes rather than the older SATA connection. A PCIe 3.0 x4 link has a theoretical ceiling a little under 4,000 MB/s. Samsung rates the 980 at up to 3,500 MB/s sequential reads and 3,000 MB/s sequential writes, and says that is over 6.2 times the speed of SATA SSDs.

Samsung adds that performance varies with firmware, system and hardware configuration. It also notes that the quoted write speed relies on Intelligent TurboWrite, a fast buffer. After that region fills, sustained writes on the 250GB model drop to around 250 MB/s, according to Samsung's footnotes. Smaller capacities typically have a smaller buffer, so this matters for large, continuous copies.

HMB technology

This drive has no dedicated DRAM cache of its own. Instead, Samsung says it uses Host Memory Buffer (HMB) technology, which lets the SSD borrow a small part of the host computer's memory for caching and buffering. It keeps the design simpler, though DRAM-equipped drives can handle some heavy workloads differently.

Endurance and warranty

Endurance is measured in terabytes written (TBW). Samsung lists 150 TBW for the 250GB model, with a five-year limited warranty or the TBW figure, whichever comes first. For typical home use, that is a large amount of writing over the drive's life, but heavy workloads should be compared with the figure.

Thermal control

Samsung says the drive has a nickel-coated controller and a heat spreader label, plus a thermal control algorithm that manages heat on its own. The aim is to keep performance steady during longer sessions. Full Power Mode, enabled in Samsung Magician software, keeps the SSD in an active state for consistent performance, which may increase power use.

Magician software

Samsung Magician lets you monitor drive health, optimise performance, protect data and receive updates.

Who it suits

A 250GB drive suits a boot drive for an operating system and a handful of applications, an upgrade from a hard disk or SATA SSD in an older machine, or a small second drive. It is a tight fit for large game libraries or media collections, where a bigger capacity makes more sense.

What to check before you buy

• Slot type: confirm your device has an M.2 slot that supports NVMe, not only SATA M.2.
• Length: this is a 2280 module, about 80 mm long.
• Capacity: 250GB fills quickly with modern games; consider your needs.
• Console use: compatibility with game consoles varies, so check the console maker's requirements.
• Laptops: some thin laptops limit drive height or have proprietary designs.
• Migration: plan how to clone or reinstall your system.

The short version

• An internal 250GB M.2 2280 NVMe SSD on PCIe 3.0 x4.
• Rated up to 3,500/3,000 MB/s sequential read/write.
• Uses HMB technology; Intelligent TurboWrite buffer for faster writes.
• 150 TBW and a five-year limited warranty for the 250GB model, whichever comes first.
• Samsung Magician software for monitoring, updates and Full Power Mode.

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