
Samsung 990 EVO 2TB
Score: 87/100
Samsung 990 EVO Plus 1TB
Score: 70/100Rankings

The Samsung 990 EVO 2TB offers a balanced mix of high random performance, strong power efficiency and modern PCIe flexibility, making it ideal for laptops and compact PCs. Its DRAM-less design keeps costs and power low, though heavy write workloads may see a slowdown once the cache is depleted.

The Samsung 990 EVO Plus 1 TB is a high-performance PCIe 4.0 SSD that also supports PCIe 5.0 x2, offering flagship-class sequential speeds and strong random performance while remaining power-efficient, but it lacks onboard DRAM and includes a minimal accessories package.
| Attribute | ![]() | ![]() |
|---|---|---|
2,000 GBbest | 1,000 GB | |
5,000 MB/s | 7,150 MB/sbest | |
4,200 MB/s | 6,300 MB/sbest | |
700,000 IOPS | 850,000 IOPSbest | |
800,000 IOPS | 1,350,000 IOPSbest | |
1,200 TBWbest | 600 TBW | |
5 yearsbest | 5 yearsbest | |
| ↓ lower better | 5.5 W | 4.3 Wbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(5) | ||
Sequential Read Speed (MB/s) | 5000 MB/s | 7150 MB/s |
Sequential Write Speed (MB/s) | 4200 MB/s | 6300 MB/s |
Random Read IOPS (IOPS) | 700000 IOPS | 850000 IOPS |
Random Write IOPS (IOPS) | 800000 IOPS | 1350000 IOPS |
Interface | PCIe 4.0 x4 / PCIe 5.0 x2 | PCIe 4.0 x4 |
Storage(3) | ||
Capacity (GB) | 2000 GB | 1000 GB |
NAND Type | 133-layer V-NAND TLC | TLC |
Endurance (TBW) (TBW) | 1200 TBW | 600 TBW |
Power & Energy(1) | ||
Active Power Consumption (W) | 5.5 W | 4.3 W |
Design & Build(1) | ||
Thickness (mm) | 2.38 mm | 2.54 mm |

Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the 990 EVO for its flexible dual-mode PCIe support, strong power efficiency and solid random performance, while noting that raw sequential speeds lag behind flagship models and sustained writes are not class-leading.
Everyday users rate the drive highly, highlighting easy installation, fast boot times and noticeable gains over older SATA or PCIe 3.0 SSDs, with occasional complaints about the lack of a heatsink and DRAM-less architecture.

“Excellent random 4K performance for a DRAM-less SSD, outperforming older models like the 980 PRO in some benchmarks.”

“Users consistently rate the drive highly (4.8-5.0 stars across platforms), praising its ease of installation and fast boot times.”

“The single-sided design fits perfectly in my mini-PC and stays cool.”




Professional reviewers praise the 990 EVO Plus for its flagship-class sequential speeds, impressive power efficiency, and the combination of Samsung's latest 236-layer V-NAND with a 5 nm controller, while noting the absence of DRAM and occasional BIOS compatibility quirks.
Everyday users rate the drive very highly (around 4.8-4.9/5), highlighting blazing-fast boot times and noticeable system responsiveness, with occasional complaints about missing mounting screws and BIOS issues.