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Short on time? Our top pick is Samsung 990 PRO 4TB, SanDisk Optimus GX PRO 8100 4TB takes Fastest 4TB Gaming SSD, while Samsung 9100 PRO 4TB takes Best Samsung Gen5 4TB.
- Best 4TB SSD for Gaming Samsung 990 PRO 4TB Check price
- Fastest 4TB Gaming SSD SanDisk Optimus GX PRO 8100 4TB Check price
- Best Samsung Gen5 4TB Samsung 9100 PRO 4TB Check price
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The best 4TB SSD for gaming lets you install nearly everything you own and stop managing space. With big games passing 100GB, 4TB holds 30 or more of them on one fast drive.
We compared six 4TB drives across Gen4 and Gen5. We checked every listing on Amazon in October 2026 and used the specs the makers publish there. We do not list prices because Amazon prices change in real time; use the buttons to see the current price and availability. Scores are our editorial scores out of 10, not Amazon customer ratings.
Best 4TB Gaming SSDs at a Glance
| Award | Drive | Read / Write | Best For | Score |
|---|---|---|---|---|
| Best 4TB SSD for Gaming | Samsung 990 PRO 4TB | 7,450 / 6,900MB/s | Most gaming PCs | 9.2/10 |
| Fastest 4TB Gaming SSD | SanDisk Optimus GX PRO 8100 4TB | 14,900 / 14,000MB/s | Gen5 builds | 9.1/10 |
| Best Samsung Gen5 4TB | Samsung 9100 PRO 4TB | 14,800 / 13,400MB/s | Gen5 Samsung builds | 8.9/10 |
| Best 4TB SN850X Successor | SanDisk Optimus GX PRO 850X 4TB | 7,300 / 6,600MB/s | Sold by Amazon | 8.7/10 |
| Best Value Fast 4TB | Lexar NM790 4TB NVMe SSD | 7,400 / 6,500MB/s | Speed for less | 8.5/10 |
| Best Flexible 4TB | Samsung 990 EVO Plus 4TB | 7,250 / 6,300MB/s | Gen4 x4 or Gen5 x2 | 8.3/10 |
Samsung 990 PRO 4TB, PCIe 4.0 M.2 2280
Samsung's top Gen4 drive at 4TB, with reads up to 7,450MB/s and writes up to 6,900MB/s.
SanDisk Optimus GX PRO 8100 4TB PCIe 5.0 NVMe SSD
A 4TB Gen5 drive rated up to 14,900MB/s reads and 14,000MB/s writes, sold by Amazon when we checked.
Samsung 9100 PRO 4TB, PCIe 5.0x4 M.2 2280
Samsung's Gen5 flagship at 4TB, rated up to 14,800MB/s reads and 2,200K random read IOPS.
SanDisk Optimus GX PRO 850X 4TB NVMe SSD, PCIe 4.0
The successor to the WD_BLACK SN850X, rated up to 7,300MB/s reads at 4TB with BiCS TLC NAND.
Lexar NM790 4TB NVMe SSD, PCIe Gen 4x4, M.2 2280
A fast 4TB Gen4 drive with reads up to 7,400MB/s and a 3,000TBW rating, sold by Amazon when we checked.
Samsung 990 EVO Plus 4TB, PCIe Gen 4x4 / 5x2 M.2 2280
A 4TB drive that works on PCIe 4.0 x4 or PCIe 5.0 x2, rated up to 7,250MB/s reads.
In-Depth Reviews
1. Is 4TB Worth It for Gaming?
If you play many large games or record gameplay, yes. 4TB means fewer reinstalls and no shuffling between drives. If you play a few games at a time, 2TB costs much less and is usually enough. For lower-cost 4TB options, see our budget 4TB NVMe guide.
2. Samsung 990 PRO 4TB: Best 4TB SSD for Gaming
The Samsung 990 PRO 4TB carries the line's 7,450MB/s read and 6,900MB/s write ratings at 4TB. Samsung quotes more than 55% better random performance than the previous generation, and Magician software handles updates and health checks.
3. SanDisk Optimus GX PRO 8100 4TB: Fastest 4TB Gaming SSD
The SanDisk Optimus GX PRO 8100 4TB gets the line's peak ratings of 14,900MB/s reads and 14,000MB/s writes, with random speeds up to 2.3M and 2.4M IOPS. SanDisk claims over twice the power efficiency of its Gen4 drive.
4. Samsung 9100 PRO 4TB: Best Samsung Gen5 4TB
The Samsung 9100 PRO 4TB reads at up to 14,800MB/s and writes at up to 13,400MB/s, with random speeds up to 2,200K and 2,600K IOPS. It is the fastest 4TB drive in this guide if your board has a PCIe 5.0 slot.
5. SanDisk Optimus GX PRO 850X 4TB: Best 4TB SN850X Successor
The SanDisk Optimus GX PRO 850X 4TB replaces the WD_BLACK SN850X, which WD's own listing now points to. It reads at up to 7,300MB/s and writes at up to 6,600MB/s on the 2TB and 4TB models and uses SanDisk BiCS TLC NAND.
6. Lexar NM790 4TB NVMe SSD: Best Value Fast 4TB
The Lexar NM790 4TB reads at up to 7,400MB/s and writes at up to 6,500MB/s, with a 3,000TBW endurance rating. It uses Host Memory Buffer 3.0 instead of onboard DRAM, which Lexar says cuts power use by up to 40% versus DRAM-equipped Gen4 drives.
7. Samsung 990 EVO Plus 4TB: Best Flexible 4TB
The Samsung 990 EVO Plus 4TB reads at up to 7,250MB/s and writes at up to 6,300MB/s. It supports PCIe 4.0 x4 and PCIe 5.0 x2 links, and Intelligent TurboWrite 2.0 helps with large-file writes.
How to Choose a 4TB SSD for Gaming
Gen4 or Gen5
Gen5 4TB drives cost more and need a Gen5 slot; Gen4 4TB drives load games almost as fast.
Endurance
Lexar rates the NM790 4TB at 3,000TBW, useful if you install and delete often.
Cooling
Use your board's M.2 heatsink, especially for Gen5.
Laptops
Check that your laptop supports 4TB and that the drive is single-sided if the bay is thin.
Quick Setup Tips
- Check your slot: your motherboard manual lists which M.2 slot runs at full speed
- Fit a heatsink: use the board's M.2 cover or a drive with one fitted
- Clone or fresh install: free cloning tools move your old drive over
- Update firmware: use the maker's software after install
- Check the live price: use the buttons to see the current price on Amazon
Frequently Asked Questions
What is the best 4TB SSD for gaming?
The Samsung 990 PRO 4TB, rated up to 7,450MB/s reads and 6,900MB/s writes.
How many games fit on a 4TB SSD?
Around 25 to 35 large modern games, or many more smaller ones.
Is a 4TB Gen5 SSD worth it?
Only with a Gen5 slot and heavy file work; game loads gain little over Gen4.
Does a 4TB SSD work in a PS5?
Yes if it meets Sony's Gen4 speed and cooling requirements.
What replaced the WD_BLACK SN850X?
WD's listing points to the SanDisk Optimus GX PRO 850X.
The Bottom Line
The Samsung 990 PRO 4TB is the best 4TB SSD for gaming. Choose the SanDisk Optimus GX PRO 8100 4TB for Gen5 speed, or the Lexar NM790 4TB for value.
