For most people building or upgrading a PC in 2026, Gen4 NVMe is still the smarter buy. Gen5 drives post far higher sequential numbers on paper, but most games and everyday applications do not come close to saturating Gen4 bandwidth, so the extra speed goes largely unused in typical day-to-day usage. Gen5 earns its premium in a narrower set of cases: large-file content creation, dataset-heavy workstation tasks, and builds where the motherboard and cooling can actually support it properly rather than throttling it back down to Gen4-like speeds under sustained load.
What changed in 2026
- Gen5 pricing dropped closer to Gen4. The premium is smaller than it was at launch, though top-tier Gen5 drives still cost meaningfully more per terabyte.
- Heatsinks are now effectively mandatory. Gen5 drives run hot enough under sustained load that thermal throttling is a real risk without active cooling or a substantial heatsink.
- Motherboard lane sharing caught some buyers off guard. Several boards share PCIe lanes between the primary Gen5 M.2 slot and a secondary slot, silently dropping the second drive to Gen4 speeds.
- Real-world gaming gains stayed small. Load-time improvements from Gen5 in most current games are modest compared to a good Gen4 drive.
Gen4 vs Gen5 compared
| Drive |
Interface |
Sequential read |
Best for |
Price tier |
| Samsung 990 Pro |
Gen4 |
~7,450 MB/s |
Best all-around Gen4 |
$ |
| WD Black SN850X |
Gen4 |
~7,300 MB/s |
Best value Gen4 |
$ |
| Crucial T500 |
Gen4 |
~7,400 MB/s |
Best budget Gen4 |
$ |
| Samsung 990 Evo Plus |
Gen4/Gen5 hybrid lane |
~7,250 MB/s |
Best power efficiency |
$ |
| Crucial T705 |
Gen5 |
~14,500 MB/s |
Best Gen5 for creators |
$$ |
| WD Black SN8100 |
Gen5 |
~14,900 MB/s |
Best Gen5 for enthusiast rigs |
$$ |
Who should actually buy Gen5
Video editors and photographers moving large 4K/8K files or big RAW batches will notice Gen5's extra bandwidth during transfers and scrubbing, especially when working directly off the drive instead of copying to a faster scratch disk first. Workstation users handling large datasets, virtual machine images, or frequent large asset imports benefit similarly, since those workloads are closer to the pure sequential transfers Gen5 is built for. Gamers and everyday users, by contrast, are far more likely to notice a difference from adding more RAM or upgrading their GPU than from moving to Gen5 storage, since game engines rarely bottleneck on drive bandwidth once any modern NVMe drive is installed.
Common mistakes
Buying Gen5 without checking motherboard lane allocation. Some boards downgrade the second M.2 slot to Gen4 bandwidth once both are populated. Check the motherboard manual before assuming full Gen5 speed on every slot.
Skipping the heatsink to save a few dollars. Gen5 drives throttle hard under sustained writes without one, which can make them slower in practice than a well-cooled Gen4 drive.
Expecting doubled real-world performance. Sequential speed doubling on paper rarely translates to double the real-world load times, since most workloads are not purely sequential-read bound.
Installing a Gen5 drive in a laptop or thin case with no airflow. These drives were designed with desktop cooling in mind; cramped enclosures make throttling far more likely.
FAQ
Does Gen5 meaningfully improve gaming performance?
Only slightly in most current titles. Game load times are more often limited by CPU, engine design, and asset streaming than by raw drive bandwidth once you are already on NVMe.
Is Gen5 worth it for content creation over Gen4?
Yes, for workflows moving very large files repeatedly. The bandwidth advantage shows up clearly in sustained transfers and scrubbing large video files.
Do I need a new motherboard for Gen5?
Yes — Gen5 requires a motherboard and CPU platform that explicitly supports PCIe Gen5 M.2 slots. Older Gen4-only boards cannot run a Gen5 drive at full speed.
Will Gen4 drives become obsolete soon?
Not in the near term. Gen4 remains fast enough for the overwhelming majority of consumer workloads and will stay well-supported and widely available.
Where to go next
If you are also shopping for portable storage, see best external SSDs in 2026. For general system longevity advice once your storage is sorted, read how to make a laptop last longer in 2026 and gaming PC vs console in 2026.