Joybuy Insights

Choosing a 4TB NVMe SSD: a practical buying guide for PC, gaming and PS5

A 4TB NVMe SSD gives you room for large game libraries, 4K video projects, 3D files and backups. But capacity is only one part of the buying decision. An SSD rated at 14,000 MB/s on paper won’t necessarily run at that speed in every PC or laptop.

Look out for these three common pitfalls:

  • Buying a PCIe generation your system can’t make use of. A PCIe 5.0 SSD will usually work in a PCIe 4.0 slot, but its speed will be limited by the older slot.
  • Confusing speed with sustained performance. Manufacturers usually quote sequential speeds. When writing large video files for a long time, heat and cache management can affect real-world performance.
  • Overlooking compatibility with a laptop or PS5. An M.2 connector alone isn’t enough. Check the drive’s length and thickness, NVMe support and the space available for a heatsink.

Which specifications matter in a 4TB M.2 SSD?

1. PCIe 4.0 or PCIe 5.0

A PCIe 4.0 SSD is a practical choice for many gaming PCs, laptops and workstations. According to the product information, models such as the Samsung 990 PRO 4TB and Crucial T500 4TB offer sequential read and write speeds of around 7,000 MB/s.

A PCIe 5.0 SSD can achieve considerably higher transfer speeds according to its stated specifications. The Lexar NM990 4TB is listed with read speeds of up to 14,000 MB/s and write speeds of 11,000 MB/s. The Samsung 9100 PRO 4TB is rated for read speeds of up to 14,800 MB/s and write speeds of 13,400 MB/s. You’ll need a compatible PCIe 5.0 x4 slot and adequate cooling to make the most of it.

If you use the SSD in a PCIe 3.0 or PCIe 4.0 system, you may be paying for speed your computer can’t fully use.

2. M.2 2280 size and physical clearance

Most internal SSDs in this category are M.2 2280 SSDs: 22 millimetres wide and 80 millimetres long. Check that this size is supported in your motherboard, laptop or console manual.

A built-in heatsink can be useful under sustained workloads, but it takes up extra space. For a PS5, the total height must stay within Sony’s specifications. An SSD without a heatsink may therefore offer more flexibility, as long as you can fit a suitable heatsink.

3. Heat, TBW and workload

High speeds can generate more heat. With a fast NVMe SSD, a motherboard heatsink or separate M.2 cooler is often a good idea, especially for PCIe 5.0 models. According to the product information, the Lexar NM1090 PRO uses an active cooling system. This requires enough airflow and space inside the case.

Also check the TBW, or Total Bytes Written. This is an estimated write endurance figure, not a guarantee that an SSD will stop working once it reaches that value. TBW is more relevant for video editing, virtual machines and large project files than for everyday gaming.

Which 4TB NVMe SSD is right for you?

Suitable for: Budget-conscious beginners
Kingston Technology 4TB NV3 M.2 2280 NVMe SSD

Kingston Technology 4TB NV3 M.2 2280 NVMe SSD

Why it suits this profile: A straightforward choice if you want plenty of storage for a PC or laptop without moving straight to PCIe 5.0. According to the product information, this model offers PCIe 4.0, read speeds of 6,000 MB/s and write speeds of 5,000 MB/s.

How this product avoids the pitfall

The M.2 2280 form factor and PCIe 4.0 interface are clearly listed. Check that your motherboard supports a 4TB NVMe drive.

Key benefit & highlights

4TB capacity, compact size and a stated MTBF of 2,000,000 hours.

Suitable for: Buyers looking for premium quality
Samsung 990 PRO NVMe 4TB SSD

Samsung 990 PRO NVMe 4TB SSD

Why it suits this profile: A good fit for gaming, video editing and everyday professional use. The product information lists PCIe 4.0 x4, read speeds of 7,450 MB/s and write speeds of 6,900 MB/s.

How this product avoids the pitfall

Its built-in temperature control and stated TBW of 2.4 PB tell you more than a speed claim alone.

Key benefit & highlights

4TB of storage, TLC memory and support for Samsung Magician, according to the product description.

Suitable for: Specialist workloads & power users
Lexar 4TB NM1090 PRO PCIe Gen5 NVMe M.2 2280 SSD

Lexar 4TB NM1090 PRO PCIe Gen5 NVMe M.2 2280 SSD

Why it suits this profile: Designed for users who write large files, such as video editors, content creators and 3D artists. The specifications list PCIe 5.0 x4, read speeds of 14,000 MB/s and write speeds of 13,000 MB/s.

How this product avoids the pitfall

The active cooling system is clearly stated. Make sure there’s enough room and ventilation: high speed doesn’t replace effective heat dissipation.

Key benefit & highlights

2GB cache, 2.8 PB TBW and high stated random performance, according to the specifications.

Suitable for: PC builders with a PCIe 5.0 platform
Samsung 9100 PRO PCIe 5.0 NVMe M.2 SSD 4TB

Samsung 9100 PRO PCIe 5.0 NVMe M.2 SSD - 4TB

Why it suits this profile: A PCIe 5.0 SSD for a modern desktop handling demanding gaming, rendering or data workloads. Its stated speeds are 14,800 MB/s for reading and 13,400 MB/s for writing.

How this product avoids the pitfall

The interface and speed are clearly specified. Check in advance that your motherboard supports PCIe 5.0 x4 and the drive’s physical dimensions.

Key benefit & highlights

4GB cache, PCIe 5.0 x4 and a stated TBW of 2.4 PB.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the current European safety regulations.

Frequently asked questions about 4TB internal SSDs

Is a 4TB NVMe SSD suitable for a laptop?

That depends on the available connection, the drive’s size and what the laptop supports. Check that the laptop has an M.2 2280 NVMe slot and that the SSD’s thickness will fit. PCIe 4.0 models are often more practical for laptops than active PCIe 5.0 models, which can require more cooling and power.

Can I use a 4TB SSD as a PS5 SSD?

A 4TB PS5 SSD must meet the requirements for M.2 NVMe storage, including suitable dimensions and heat dissipation. Some models are listed as PS5-compatible in the product information, but always check Sony’s current requirements. A heatsink is generally necessary. If your SSD doesn’t have one, you’ll need to fit a suitable model separately.

Will a 4TB SSD last a long time?

Lifespan depends on the amount of data written, temperature, model and usage. As well as the warranty, check the stated TBW rating and leave enough free space. Keep important files backed up externally or in the cloud: no internal SSD can replace a backup.