Samsung 990 PRO 4TB

In this samsung 990 pro 4tb review, the verdict is simple: the Samsung 990 PRO 4TB is the best overall 4TB NVMe SSD in our 2026 guide of eight drives. It is a PCIe 4.0 M.2 2280 internal SSD (model MZ-V9P4T0BW) with 4TB of storage, read speeds up to 7,450 MB/s and write speeds up to 6,900 MB/s. At $859.95 it is the most expensive pick in the group, yet 13,356 Amazon ratings average 4.7 stars and it sits at number one in Amazon's Internal Solid State Drives category. Buyers who want one fast drive for gaming, video editing and large file transfers without running out of room are the right audience. Budget builders should look elsewhere.

Performance is where the numbers matter. The 432GB cache absorbs bursts of large writes, so exporting a 4K project or moving a 200GB game folder stays quick instead of throttling early. Meanwhile, Samsung rates random performance more than 55% higher than the older 980 PRO, which translates to faster level loads and snappier app launches in daily use. The drive also delivers up to 50% better performance per watt than the 980 PRO, a real benefit inside a laptop or a small case where heat builds up. As a 4TB M.2 2280 drive, it drops into most desktops and laptops from the last several years, and Samsung lists it as compatible with the PlayStation 5, so console owners can expand storage without guesswork. AES 256-bit hardware encryption is included for anyone handling sensitive files.

Value depends on what you need from 4TB. At $859.95, the Samsung 990 PRO 4TB costs roughly $320 more than the Lexar NM790 4TB in this same guide, and in everyday gaming most players will not feel that difference. However, the 5-year limited warranty, the number one Best Sellers rank and the deep rating history are what you pay extra for: a drive you can install once and forget for years. By contrast, cheaper 4TB drives often cut corners on cache or controller quality, which shows up in sustained writes. Skip the 990 PRO if your motherboard only runs PCIe 3.0, since you would pay for Gen4 speed you cannot use. If you are building a machine to keep for years, this is the one to get.