Best 2TB SATA TLC DRAM SSDs
There are 16 2TB SATA TLC DRAM SSDs compared here. The fastest is the Samsung EVO 870 at 560 MB/s read at 2TB, and the highest-rated for endurance is the Western Digital RED SA500 (2500 TBW). Sequential reads across the group span 530–560 MB/s at 2TB.
Why this configuration
A 2TB SATA TLC DRAM SSD is a budget and compatibility choice. SATA won't win benchmarks, but it's the cheapest way to add solid-state speed and fits essentially any PC or laptop with a 2.5-inch bay.
2TB is the current default for people who'd rather not think about free space for a while.
Usually chosen for: reviving older machines, cheap capacity upgrades and second drives.
Good fit: everyday all-rounder use, from OS drive to game library; workstation and creative loads that hammer random I/O.
Look elsewhere for: large-file creative work where NVMe pulls ahead.
Ranked list
Speeds on this page are the manufacturer's 2TB ratings where published (16 of 16 drives), not the family headline figure. Rated writes at 2TB run 510–560 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 2TB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  Samsung 850 PRO 128GB, 250GB, 500GB, 1TB, 2TB | Top-tier | Samsung 3-core 400MHz MHX Controll | 550 | 450 | Check price on Amazon |
| 2 |  Samsung EVO 870 250GB, 500GB, 1TB, 2TB, 4TB | High-end | Samsung MKX "Metis" Controller (3- | 560 | 2400 | Check price on Amazon |
| 3 |  Samsung 860 EVO 250GB, 500GB, 1TB, 2TB, 4TB | High-end | SAMSUNG MJX CONTROLLER (3-Core, 8- | 550 | 2400 | Check price on Amazon |
| 4 |  Samsung EVO 860 M.2 250GB, 500GB, 1TB, 2TB | High-end | SAMSUNG MJX CONTROLLER (3-Core, 8- | 550 | 1200 | Check price on Amazon |
| 5 |  Samsung 850 EVO 128GB, 250GB, 500GB, 1TB, 2TB, 4TB | High-end | Samsung MGX Controller (2-Core, 8- | 540 | 300 | Check price on Amazon |
| 6 |  Crucial MX500 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2258H (1-Core, 4- | 560 | 700 | Check price on Amazon |
| 7 |  ADATA SU800 128GB, 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2258G (1-Core, Cl | 560 | 1600 | Check price on Amazon |
| 8 |  Kingston KC600 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2259 | 550 | 1200 | Check price on Amazon |
| 9 |  Western Digital RED SA500 500GB, 1TB, 2TB, 4TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 560 | 2500 | Find on Amazon |
| 10 | Mid-range | Silicon Motion SM2259 (1-Core, 4-C | 560 | — | Find on Amazon | |
| 11 |  Western Digital BLUE 250GB, 500GB, 1TB, 2TB, 4TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 530 | 600 | Find on Amazon |
| 12 |  Western Digital Blue™ 250GB, 500GB, 1TB, 2TB, 4TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 530 | 600 | Find on Amazon |
| 13 |  Western Digital BLUE M.2 250GB, 500GB, 1TB, 2TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 530 | 500 | Find on Amazon |
| 14 |  Seagate BARRACUDA 250GB, 500GB, 1TB, 2TB | Value | SEAGATE STXZA01EA387 (Phison PS311 | 560 | 1067 | Find on Amazon |
| 15 |  Transcend SSD230S 128GB, 250GB, 500GB, 1TB, 2TB | Value | Silicon Motion SM2258 | 560 | 1120 | Find on Amazon |
| 16 |  Goodram PRO GEN. 2 250GB, 500GB, 1TB, 2TB | — | Phison PS3112-S12 | 560 | 1700 | Find on Amazon |
The parts, explained
2TB is today's sweet spot for large game libraries and creative work.
SATA III tops out around 550 MB/s, but it is the cheapest interface and fits any 2.5-inch bay or older laptop.
TLC NAND is the mainstream choice — a solid balance of endurance, speed and cost.
An onboard DRAM cache keeps the flash mapping table on the drive, holding random performance steady under sustained load.
Common questions
Is SATA fast enough in 2026?
For an OS, apps and most games you won't notice the difference versus NVMe in daily use. NVMe pulls ahead mainly on large file transfers and load-heavy creative work.