Joybuy Insights

Buying a 1 TB SSD: A Guide for PCs, Laptops, Gaming and Mobile Devices

A 1 TB SSD provides ample storage for your operating system, applications, games and larger media libraries. However, choosing a drive does not automatically mean choosing the right one. High speed figures are often assumed to apply to every everyday situation, while interfaces may be overlooked. If you do not check the form factor, connection and cooling requirements, you could end up with a drive that does not fit your laptop, cannot be used optimally in a PlayStation 5 or performs considerably more slowly than expected.

Common pitfalls when buying a 1 TB SSD

1. Maximum speed is confused with everyday performance

A figure such as 7,000 MB/s or more usually describes the maximum sequential read speed under specific conditions. Actual performance may be lower when starting applications, working with small files or using a drive that is almost full. The computer’s connection also limits data transfer speeds.

A PCIe 4.0 SSD requires a compatible PCIe 4.0 connection to achieve its intended performance. A PCIe 5.0 SSD is designed for suitable PCIe 5.0 slots and often requires better heat dissipation.

2. M.2 does not necessarily mean NVMe

“M.2” primarily refers to the form factor. NVMe protocol and PCIe interface are also crucial for performance. Before buying, you should check:

  • Does the device support M.2 2280 with dimensions of 22 × 80 mm?
  • Is the slot compatible with PCIe and NVMe?
  • Does the motherboard support PCIe 3.0, 4.0 or 5.0?
  • Is there a mounting screw or an integrated heatsink?
  • Will the SSD fit within the laptop’s available space?

An internal SSD may fit mechanically, but still be unusable because of an incompatible protocol or a different height.

3. Cooling and spare capacity are underestimated

During long write operations, video editing or large game installations, temperature can affect performance. An SSD with a heatsink is worth considering for compatible desktop PCs and certain consoles. With laptops, however, you need to check the drive’s height particularly carefully.

You should also plan to keep some storage free. A drive should not remain permanently filled to its capacity limit, as this can make it harder to manage free storage blocks. Important files should also be copied to a separate backup medium.

The most important buying criteria at a glance

Form factor and compatibility

For many current PCs, notebooks and mini PCs, an M.2 SSD in the 2280 format is suitable. A 2.5-inch SATA SSD, on the other hand, requires cables and a suitable installation bay. For the PlayStation 5, you need to consider the requirements for M.2 NVMe drives, dimensions and cooling. A model without suitable heat dissipation is not automatically compatible.

Interface and speed

Theoretical performance can be broadly categorised as follows:

  • PCIe 3.0 NVMe: suitable for everyday applications and older systems
  • PCIe 4.0 NVMe: short loading times and high transfer rates for modern PCs
  • PCIe 5.0 NVMe: for compatible systems and data-intensive tasks; cooling and motherboard support are particularly important
  • USB 3.2 Gen 2: external transfers of up to around 1,000 MB/s with compatible hardware
  • USB 3.2 Gen 2x2: external SSDs with quoted speeds of up to around 2,000 MB/s, provided that the device and cable support this standard

A USB-C SSD can work with a range of devices, but USB-C only describes the connector type. Actual speed depends on the USB standard supported by the device, cable and drive.

TBW, warranty and data security

The TBW (Terabytes Written) figure indicates the nominal amount of data that the manufacturer rates the drive to write. It is not an exact expiry date. With a 1 TB SSD, you should also check the warranty terms, the manufacturer’s software for firmware updates and the available diagnostic functions. No SSD replaces regular backups.

Our selection by user profile

Suitable for: Budget-conscious beginners
Kingston NV3 M.2 2280 SSD 1TB

Kingston NV3 M.2 2280 SSD 1TB

Why this product suits this profile: This internal 1 TB NVMe SSD in the M.2 2280 format is designed for compatible PCs, laptops and compact systems, and supports PCIe 4.0.

How this product avoids the pitfall

The quoted read speed of up to 6,000 MB/s and write speed of 4,000 MB/s are clearly linked to PCIe 4.0 compatibility, rather than being advertised independently of the system.

Main benefit & strengths

M.2 2280, 3D NAND, NVMe and compact dimensions of 22 × 80 mm.

Suitable for: Buyers seeking high quality
Samsung 990 PRO NVMe M.2 SSD with heatsink 1 TB

Samsung 990 PRO NVMe M.2 SSD with heatsink, 1 TB

Why this product suits this profile: Designed for gaming PCs, video editing and compatible PlayStation 5 systems, this model combines PCIe 4.0 with an integrated heatsink.

How this product avoids the pitfall

The heatsink is already integrated. Even so, you should check the installation height, slot and available clearance of your particular device before buying.

Main benefit & strengths

Read speeds of up to 7,450 MB/s and write speeds of up to 6,900 MB/s; compatible with PC and PlayStation 5 according to the product details.

Suitable for: Specialist uses & heavy users
Lexar ES5 Portable SSD 1TB

Lexar ES5 Portable SSD 1TB

Why this product suits this profile: This portable SSD is aimed at content creators and mobile users with USB-C devices, MagSafe-compatible smartphones and demanding transport requirements.

How this product avoids the pitfall

The product details specify USB 3.2 Gen 2x2, IP65 and a drop height of up to 3 metres. Speeds may be lower on devices without Gen 2x2.

Main benefit & strengths

Read and write speeds of up to 2,000 MB/s, IP65-rated dust and water protection, plus MagSafe support.

Suitable for: Heavy users with PCIe 5.0 systems
Lexar NM990 1TB M.2 PCIe 5.0

Lexar NM990 1TB M.2 PCIe 5.0

Why this product suits this profile: Designed for data-intensive PC workstations, large project files and compatible PCIe 5.0 systems, this internal drive offers high sequential transfer rates.

How this product avoids the pitfall

Use with PCIe 5.0 is expressly required. For extended periods of heavy use, a motherboard heatsink or comparable cooling solution is recommended.

Main benefit & strengths

Quoted internal data transfer speeds of up to 14,000 MB/s, M.2 2280 and backwards compatibility with PCIe 4.0 at reduced performance.

Looking for more options?

We have put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations applicable in the EU.

Frequently asked questions about 1 TB SSDs

Is a 1 TB SSD enough for gaming?

For many users, 1 TB is enough for a system and games drive. However, several large games can quickly use up the available storage. You should therefore check installation sizes and leave enough free space for updates and additional applications.

Which SSD is suitable for the PS5?

Compatible internal M.2 NVMe SSDs can be used with the PS5. PCIe support, height, dimensions and a suitable cooling solution are crucial. An external 1TB SSD, on the other hand, is primarily suitable for moving or archiving games, rather than as an equivalent replacement for the internal expansion storage.

Does an external SSD use a lot of power?

A portable SSD is normally powered via USB. Power consumption depends on the interface, write workload and connected device. A model with USB 3.2 Gen 2x2 may have higher power requirements than a slower USB SSD. With mobile devices, you should also consider battery life and the cable being used.