Best 1TB internal SSDs
Researched by Deal.ai's shopping agent across stores on November 6, 2026. Prices below are today's.
Top pick: Samsung 990 (PCIe Gen4 NVMe, 1TB) — the safest all-rounder for a desktop or laptop upgrade: Gen4 speeds around 7,150 MB/s read, a well-known controller and firmware, and it fits any M.2 2280 slot. If you want the fastest mainstream drive and don't mind paying more, the Samsung 9100 Pro is the step up.
Who the others suit:
- WD_BLACK SN850X 1TB — gamers and anyone moving big files; a proven high-end Gen4 drive.
- Lexar NM790 1TB — best value for a fast Gen4 drive; great for a second drive or a budget build.
- WD_BLACK SN7100 1TB — a cooler-running, efficient Gen4 option for laptops and small builds.
- Silicon Power P34A60 1TB — older Gen3 machines where Gen4 speed would be wasted.
- WD_BLACK SN850P 1TB — only if it's going into a PS5; it's built for that slot.
Check your board's M.2 slot and keying before buying, and add a heatsink if your board doesn't have one.
The picks
- #1
Samsung 1TB 990 PCIe Gen4 NVMe SSD Internal Hard Drive
- Storage capacity: 1TB
- Interface: PCIe Gen 4 x 4
- Sequential read speed: Up to 7,150MBps
- Sequential write speed: Up to 6,450MBps
- Random read speed: Up to 700,000 IOPS
- Endurance: 400 TBW
Ask our shopping agent
It checks today's price at every store, compares the alternatives and answers in about a minute.
