Samsung 1TB SSD PCIe 4.0 NVMe M.2
The Samsung 990 delivers 7,150 MB/s sequential reads and 850K random read IOPS on a DRAM-less TLC design, with up to 38% better performance per watt than the 990 PRO for efficient laptops. Its 1TB capacity and 400 TBW endurance suit growing game libraries, while hardware encryption adds security for sensitive files. Best for budget-conscious DIY builders and digital archivists who need fast, reliable storage for large games and 4K projects.
Snapshot
The 30-Second Version
The Samsung 990 is a fast, reliable Gen 4 SSD that skips the DRAM cache but still delivers top-tier random performance. It's priced anywhere from $190 to $270, so shop around for the best deal. If you're gaming or doing everyday creative work, this drive is an easy recommendation.
Pros & Cons
Pros
- Blazing fast sequential and random speeds for a DRAM-less drive 100th
- Excellent power efficiency, up to 38% better performance per watt than the 990 PRO 95th
- Rock solid reliability with a 1.5 million hour MTBF rating 85th
- Easy drop-in upgrade for laptops and desktops alike 78th
Cons
- No DRAM cache, which can hurt sustained write performance
- Runs hot under heavy load according to multiple owners
- 3-year warranty is shorter than some competitors offer
- Price fluctuates wildly, from $190 to $270 depending on the retailer
What owners think
The Word on the Street
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 11 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Sequential reads hit 7,150 MB/s and writes land at 6,450 MB/s, which puts this drive in the 85th percentile for speed in our database. That's one of the better Gen 4 results we've seen, especially for a DRAM-less design. Random performance is even more impressive, with 850K read IOPS and 1,200K write IOPS ranking in the 95th percentile. Game load times and large file transfers feel snappy. The one weak spot is sustained write performance under heavy load, where the lack of DRAM can show up as dips. For everyday gaming and content work, though, you'd be hard pressed to feel the difference.
Specifications
Full Specifications
Drive
| Capacity | 1000 |
| Form Factor | M.2 |
| Interface | PCIe 4.0 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 7150 |
| Sequential Write (MB/s) | 6450 |
| Random Read (IOPS) | 850000 |
| Random Write (IOPS) | 1200000 |
Hardware
| NAND | TLC |
| DRAM Cache | No |
| Controller | In-House Controller |
Reliability
| Endurance (TBW) | 400 |
| MTBF (hours) | 1500000 |
| Warranty (years) | 3 |
Features
| Heatsink | No |
| Hardware Encryption | Yes |
vs Competition
Against the Crucial T500, the Samsung 990 trades blows on sequential speeds but gives up some sustained write performance due to the missing DRAM cache. The Kingston Fury Renegade offers similar speeds with a DRAM cache and often lands at a comparable price, which makes it a serious alternative. The Lexar NM1090 PRO and Team Group MP44 both undercut the Samsung on price while delivering competitive Gen 4 performance. Where the 990 wins is brand trust and that 4.9-star customer rating across 168 reviews. People know Samsung drives, and this one doesn't disappoint on the reliability front.
| Spec | Samsung 1TB SSD | Western Digital Black SN850X | Kingston FURY Renegade G5 SFYR2S/4T0 | Crucial T710 | Seagate FireCuda 530R ZP4000GM3A073 | Lexar NM1090 PRO LNM109P004T-RNNNU |
|---|---|---|---|---|---|---|
| Capacity | 1TB | 4TB | 4TB | 4TB | 4TB | 4TB |
| Form Factor | M.2 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 | M.2 2280 |
| Interface | PCIe 4.0 | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 5.0 x4 | PCIe 4.0 x4 | PCIe 5.0 |
| Seq Read | 7,150 MB/s | 7,300 MB/s | 14,800 MB/s | 14,500 MB/s | 7,400 MB/s | 14,000 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | SLC |
| Dram Cache | false | true | true | false | false | true |
| Endurance | 400 TBW | 2400 TBW | 4000 TBW | 2400 TBW | 5050 TBW | 2800 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof | Affordability |
|---|---|---|---|---|---|---|---|
| Samsung 1TB SSD | 85.3 | 94.8 | 78.4 | 55.3 | 72.2 | 99.6 | 48.6 |
| Western Digital Black SN850X Compare | 89 | 95.7 | 89.3 | 92.5 | 88 | 95.3 | 9.6 |
| Kingston FURY Renegade G5 SFYR2S/4T0 Compare | 99.5 | 99 | 90.9 | 92.5 | 93.5 | 87.1 | 6.6 |
| Crucial T710 Compare | 99.1 | 99.1 | 85.5 | 92.5 | 85.8 | 77.4 | 10.9 |
| Seagate FireCuda 530R ZP4000GM3A073 Compare | 92.8 | 96.8 | 78.4 | 92.5 | 95.6 | 77.4 | 7 |
| Lexar NM1090 PRO LNM109P004T-RNNNU Compare | 98.1 | 98.5 | 97.5 | 92.5 | 74.9 | 56.9 | 8.4 |
Price
Value & Pricing
The pricing on this drive is all over the place. We're seeing it listed anywhere from $190 to $270 across US retailers, which is a massive spread for a 1TB drive. At the low end, it's a genuinely good deal for this level of performance. At the high end, you're creeping into territory where faster drives with DRAM caches start looking tempting. If you can snag it near $190, it's a no-brainer. If you're staring at $270, shop around or wait for a sale.
Memory Express 1 offer From CA$315
Amazon 1 offer From CA$315
Best Buy 1 offer From CA$315
Canada Computers 1 offer From CA$315
Price History
Read more
Overview
The Samsung 990 is a DRAM-less PCIe 4.0 drive that still manages to punch above its weight class. You get 7,150 MB/s reads and 6,450 MB/s writes, which puts it in the top tier of Gen 4 drives without the premium price tag of the 990 PRO. It's aimed squarely at gamers and PC builders who want fast load times without overthinking it.
Samsung went with an in-house controller and TLC NAND here, skipping the DRAM cache entirely. That's usually a red flag for sustained performance, but the numbers tell a different story. The random read IOPS hit 850K and writes reach 1,200K, which is genuinely impressive for a cache-less design. It's not the absolute fastest drive we've tested, but it's close enough that most people won't notice the difference.
Common Questions
Q: Does this drive need a heatsink?
It's not strictly required, but several owners report it runs hot under sustained load. If your motherboard doesn't have a built-in M.2 heatsink, a cheap aftermarket one is worth the few extra bucks.
Q: Is the DRAM-less design a dealbreaker?
For most people, no. The 990 uses HMB technology to borrow system memory, and our benchmarks show it still lands in the 95th percentile for random performance. Heavy sustained write workloads are where you might notice the difference.
Q: Will this work in a PS5?
Yes, the M.2 2280 form factor and PCIe 4.0 interface meet the PS5's requirements. Just make sure to add a heatsink, since the console's expansion bay needs one for proper cooling.
Who Should Skip This
If you're doing heavy video editing, running databases, or constantly moving massive files around, look elsewhere. The DRAM-less design means sustained write speeds can dip when the drive is pushed hard for long periods. Something like the Kingston Fury Renegade or Crucial T500 with a proper DRAM cache will hold up better under that kind of workload. Also, if you're seeing this drive priced near $270, skip it and wait for a sale or grab a competitor at a better price.
Verdict
The Samsung 990 is a smart buy for gamers, DIY builders, and anyone upgrading from an older SATA or Gen 3 drive. It's fast, efficient, and backed by Samsung's reputation for reliability. The DRAM-less design is the main compromise, but for most real-world workloads it's a non-issue. If you're doing heavy sustained writes like video editing or large database work, you might want something with a DRAM cache. For everyone else, this drive delivers where it counts.
Usage Scores
- Overall82.7
- Budget94.4
- Gaming80.3
- Laptop86.9
- Console78.1
- Portable20.7
- Workstation74.6