The short answer is no. Not for gaming. Not in 2026.
A PCIe 5.0 SSD reads sequential data at up to 14,900 MB/s. A top PCIe 4.0 drive hits around 7,450 MB/s. On a spec sheet that looks like a night-and-day difference. In a gaming PC it produces load time differences of one to three seconds at most and zero difference in frame rates.
This pcie 5 vs pcie 4 nvme ssd gaming article explains exactly why that is, who PCIe 5.0 actually benefits, and which specific Gen 4 drives are worth buying in 2026 given current pricing.
Why storage speed barely affects gaming
Loading a game isn’t a sequential file transfer. When a game loads a level, it’s reading thousands of small scattered assets textures, geometry, audio, script in unpredictable random patterns across the drive. That workload is determined by the game engine’s IO processing speed, not by how fast your SSD can stream a sequential block of data.
Benchmark testing across multiple titles in 2026 shows less than 1% FPS variance between Gen 4 and Gen 5, and load time differences of one to three seconds at most in the most storage-intensive titles. You’d notice that difference on a stopwatch. You won’t notice it during actual gameplay.
DirectStorage is the technology that was supposed to change this it routes asset decompression directly to the GPU, theoretically making faster storage more useful. As of mid-2026, fewer than ten games have meaningful DirectStorage integration. Even in those titles a high-end Gen 4 drive delivers 95%+ of the Gen 5 benefit because the decompression bottleneck is GPU processing, not raw sequential read speed.
Your GPU determines your frame rates. Your CPU determines how fast game logic runs. Your SSD determines how long you stare at loading screens. And on a Gen 4 drive in 2026, those loading screens are already fast enough that the difference to Gen 5 is essentially invisible.
Where PCIe 5.0 genuinely earns its premium
If you regularly move files larger than 10GB 4K RAW video footage, 3D render project files, large dataset transfers the sequential speed advantage is real and tangible. Exporting a 4K timeline, moving a 50GB project folder, running local AI model inference: these are sustained large-file workloads where 14,900 MB/s versus 7,450 MB/s translates to minutes saved rather than seconds.
If that’s your daily workflow alongside gaming, a Gen 5 drive in the primary M.2 slot is a reasonable investment. If you game and browse and occasionally download large game installs, it’s not.
The thermal problem — still real but improving
Early Gen 5 drives (2023–2024 era) ran hot enough to throttle without active cooling bare drives would drop from 14,000+ MB/s to near-HDD speeds after a few minutes of sustained writes. The latest controllers have improved dramatically. The WD Black SN8100 runs at roughly 6.5–7W under load, manageable with a standard motherboard M.2 heatsink.
That said, Gen 5 still runs meaningfully hotter than Gen 4 under sustained workloads. Gen 4 drives are thermally much easier to manage most don’t require dedicated heatsinks and run quietly within a normal mid-tower’s airflow without concern.
The capacity question is more important than the generation
2TB is the minimum sensible capacity for a gaming build in 2026. A single AAA title can consume 100–150GB, Windows 11 needs 60GB, and most people have a backlog of games they want to keep installed. 1TB fills uncomfortably fast.
If budget forces a choice between 1TB Gen 5 and 2TB Gen 4, take the 2TB Gen 4 every time. You’ll feel the extra space every day. You won’t feel the extra sequential speed at all.
What to actually buy
The current SSD market has been hit by the same AI-driven memory shortage that pushed RAM prices up. A Samsung 990 Pro 2TB that cost $120 in late 2023 is now around $388. WD Black SN850X 2TB is in similar territory. These prices are painful but they reflect the current market reality the same shortage affecting DDR5 kits is constraining NAND supply across the board.
Samsung 990 Pro 2TB
(~$388) remains the benchmark recommendation from Tom’s Hardware and most major review sites for gaming SSDs. Up to 7,450 MB/s sequential reads, 1.2 million read IOPS, excellent random performance, 1,200 TBW endurance, five-year warranty. Samsung’s in-house Elpis controller paired with their own V-NAND is a proven combination. It’s the safe, mature pick.
WD Black SN850X 2TB
(~$508 with heatsink) is the alternative that trades marginally lower peak sequential speeds for a larger 600GB SLC cache on the 2TB model which means more consistent sustained performance during extended write workloads. If you do content creation alongside gaming it’s worth considering. For pure gaming the two drives are effectively identical in daily use.
Seagate FireCuda 530 2TB
is worth a look if you’re doing write-intensive work it carries 1,275 TBW endurance, the highest in this roundup, and comes in a heatsink variant for builds with poor M.2 airflow.
For builders on a tight budget who just need reliable Gen 4 storage without premium brand pricing: the SK Hynix Platinum P41 matches Samsung’s random performance at a lower price where available, and the Crucial P3 Plus 2TB hits the best gigabytes-per-dollar in the Gen 4 range at the cost of some peak sequential performance.
The one thing to check before buying any NVMe drive
Make sure your M.2 slot actually supports the generation you’re buying. PCIe 5.0 drives are backward compatible they’ll run in a Gen 4 slot at Gen 4 speeds but you’d be paying a premium for capability the slot can’t deliver. Check your motherboard manual for which slots are Gen 5 capable. On most B650 boards the primary M.2 slot is Gen 5, but secondary slots are typically Gen 4. On budget boards, all M.2 slots may be Gen 4.
Don’t buy a Gen 5 drive and install it in a Gen 4 slot thinking it’ll run faster. It won’t. It’ll run identically to a Gen 4 drive at a higher price.
The verdict
Buy a 2TB PCIe 4.0 drive. The Samsung 990 Pro and WD Black SN850X are the correct picks at the upper end. Put the money saved versus Gen 5 toward a better GPU, more RAM, or a larger display all three will change your gaming experience in ways you’ll notice every session. An SSD upgrade from Gen 4 to Gen 5 will not.