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Samsung 970 Pro 512GB Review


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Trusted Reviews Recommended


  • Exceptional speed in all tests
  • Faster than the 960 Pro
  • Excellent endurance levels


  • Only minor gains over rivals
  • Expensive

Key Specifications

  • Review Price: £219
  • 512GB capacity
  • 64-layer 3D V-NAND
  • Phoenix 5-core controller
  • 2280 form factor

What is the Samsung 970 Pro 512GB?

The Samsung 970 Pro is the Korean firm’s latest attempt to maintain its position at the top of the SSD market – and, on paper at least, this drive is a barnstormer.

Samsung’s next SSD success may sound like a foregone conclusion after the last few years of dominance, but reality isn’t that rosy. More drives than ever are delivering super speeds for lower prices – which means Samsung may struggle to convince people to pay for this premium flagship.

Related: Best Graphics Cards 2018

Samsung 970 Pro 512GB – Design and Features

The new drive is designed for high-end users who want an SSD that combines lightning speed with impressive endurance – so those folks who are building workstations, creative systems or other machines with demanding productivity applications.

The new drive is available in 512GB and 1TB configurations, with prices of £219 and £399 respectively. That’s a lot to ask for an SSD these days – the 970 Evo costs £180 and £330 for equivalent sizes, while the highly-regarded WD Black costs £155 for a 500GB drive and £360 for a 1TB model.

Samsung 970 Pro 512GB Review 06

Given the 970 Pro’s high-end ambitions, it’s no shock that Samsung hasn’t produced a 250GB model of this SSD – that’s just too small these days. However, I am a little surprised that Samsung hasn’t built a 2TB version of this drive.

There’s a lot to like about the hardware, despite the high price. Changes have arrived in two key areas: the controller, and the memory chips themselves.

Let’s start with the controller. The 970 Pro is managed by a chip called Phoenix. It’s a five-core part, with one of those cores dedicated to communication with the host system. Like last year’s Polaris controller, the use of more cores mean that Samsung can keep the clock speeds down – which, in turn, means that less heat is generated. There’s also a layer of nickel that helps reduce temperatures.

The revised controller is paired with Samsung’s familiar 3D V-NAND. This has been improved, too – last year’s SSDs used 48-layer V-NAND, while the 970 Pro and 970 Evo use 64-layer memory. The technology used here is excellent, but more and more rivals are now starting to use this sort of hardware – after all, it’s been a few years since it was introduced by Samsung.

Samsung has used MLC memory inside the 970 Pro. It’s more expensive than the TLC chips found inside mother other SSDs – and inside the 970 Evo – but it’s faster, too. That’s why Samsung has chosen to slot these chips into its flagship SSD.

Samsung 970 Pro 512GB Review 02

On the inside, you get 64-layer 3D V-NAND and the new controller. On the outside, the drive looks familiar. The PCB uses the 2280 form factor that every rival also uses, and Samsung has retained the layer of copper beneath the drive’s label to improve heat management.

You still get 256-bit full disk encryption with Microsoft eDrive and TCG Opal 2.0, and you still get to manage the SSD using Samsung’s slick Magician software.

Samsung’s high-end intentions mean the 970 Pro has excellent endurance levels. The 512GB model is rated for 600TB of write endurance, with that figure doubling on the 1TB drive.

That’s a 50% gain over the 970 Evo, which serves up 300TB and 600TB of endurance for its 500GB and 1TB models. It’s also 50% ahead of the older 960 Pro.

Related: Best Motherboards 2018 – AMD and Intel 

Samsung 970 Pro 512GB – Performance

Samsung’s 970 Pro delivers the familiar speed that I expect from a flagship drive – but the gap between this SSD, its predecessors and its competition is slimmer than ever.

In CrystalDiskMark, for instance, the 970 Pro returned a sequential read pace of 3567MB/s. That’s a fantastic result, but it’s essentially the same speed as the cheaper 970 Evo – and it’s only about 100MB/s faster than last year’s 960 Pro.

There’s a larger gap between the 970 Pro and the 970 Evo when reading smaller files. Its 4K read pace of 60MB/s easily beat the 49MB/s recorded by the Evo. In another CrystalDiskMark test, 4KiB Q8T8, the Pro’s 1381MB/s read speed was more than 300MB/s ahead.

Samsung 970 Pro 512GB Review 05

The 970 Pro’s sequential write pace of 2,336MB/s is another excellent result, and its 4K write speed of 173MB/s is good, too – but it’s another area where the 970 Evo is similarly impressive. The 970 Evo’s sequential write speed of 2495MB/s is actually better, and its 4K write pace of 168MB/s isn’t far behind the 970 Pro.

The 970 Pro did manage to outpace its predecessor, which could only manage a sequential write pace of 2157MB/s.

The 970 Pro impressed in Atto, which is a benchmark that tests an SSD’s read and write speeds across a huge variety of file sizes.

Samsung 970 Pro 512GB Review 03

In read tests the 970 Pro got past the 1000MB/s mark by the time it was handling 16KB files, and it hit its peak speed of 3340MB/s at the 512KB point – and it maintained that pace all the way to 64MB. That’s better than the 970 Evo, which was a little slower to accelerate and could only manage a peak read speed of 3010MB/s. However, in this test the 970 Pro was no faster than the 960 Pro, which topped out at 3347MB/s.

When writing files, the 970 Pro got beyond 1000MB/s when writing 32KB files and hit its top speed of 2180MB/s during the 64KB portion of the test – so it’s clearly a quick accelerator. That top speed, however, is barely ahead of the 960 Pro, which managed 2150MB/s – and it’s actually behind the 970 Evo, which topped out with an Atto write pace of 2320MB/s.

Related: Best DDR4 RAM 2018

Why Buy the Samsung 970 Pro 512GB?

Samsung’s latest flagship SSD is one of the fastest drives I’ve ever seen, but market forces mean that it’s trickier than ever to recommend to the average user.

While it does have exceptional speed, for instance, it’s hardly faster than the 970 Evo in many tests – and in some benchmarks it’s not far ahead of last year’s 960 Pro.

The 970 Pro doesn’t streak ahead in benchmarks, but it does have far better endurance ratings than its rivals. That’s important in high-end systems where the SSD will be dealing with huge workloads.

If you are building a workstation system or another kind of high-end machine, the 970 Pro’s great speed and impressive endurance ratings justify its lofty price. For everyone else, the 970 Evo is more affordable and just as fast – and, therefore, a better option.


Samsung’s latest flagship SSD delivers familiar, huge speeds in every benchmark, but it’s barely quicker than the 970 Evo – and, in some cases, not much faster than the 960 Pro, either. The huge endurance rating goes some way to justifying the cost for workstations and high-end productivity PCs, but most other customers are better off saving cash by opting for the 970 Evo instead.

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