Head to head

Samsung 990 PRO 4TB vs Samsung 990 EVO Plus 1TB US

Our pick

Samsung 990 PRO 4TB

For data that needs encryption on the drive

Why this one

Choose the Samsung 990 PRO 4TB when you need its capacity and a hardware-encryption feature. Confirm your operating system and security tools support the required management mode, then configure and verify protection before storing sensitive files.¹²

Read the review

Product photographs. Not to scale.

What Samsung 990 EVO Plus 1TB US offers

The Samsung 990 EVO Plus 1TB gives a compatible M.2 2280 NVMe system 1TB for files and applications. Match its PCIe 4.0 ×4 or 5.0 ×2 connection to your host; both generation and lane count matter.³

What differs

Specification	Samsung 990 PRO 4TB	Samsung 990 EVO Plus 1TB US
Capacity	4,000 GB¹	1,000 GB³
PCIe generation	Gen4¹	PCIe® 4.0 x4 / 5.0 x2 NVMe™ 2.0³

More details

Specification	Samsung 990 PRO 4TB	Samsung 990 EVO Plus 1TB US
Sequential read speed	7,450 MB/s (Test method: IOmeter1.1.0)²	Not published
Endurance	2,400 TB¹	600 TB (Test method: JESD218 Standards)³
Sequential write speed	6,900 MB/s (Test method: IOmeter1.1.0; Workload: Intelligent TurboWrite technology being activated)²	Not published
Flash cell type	Tlc¹	Tlc³
Random read	1,600,000 IOPS (Test method: IOmeter1.1.0; Workload: QD 32 Thread 16)²	Not published
DRAM cache	Yes²	Not published
Warranty	5 years¹	5 years (Workload: Stated time period or TBW, whichever comes first)³
Hardware encryption	Yes²	Yes³
M.2 form factor	M.2 (2280)²	M.2 (2280)³