Best 1TB ADATA MLC SSDs
There are 5 1TB ADATA MLC SSDs compared here. The fastest is the ADATA SX9000 at 2800 MB/s read at 1TB, and the highest-rated for endurance is the ADATA SU900 (1600 TBW). Sequential reads across the group span 560–2800 MB/s at 1TB.
Why this configuration
A 1TB ADATA MLC SSD is a legacy endurance choice. MLC stores two bits per cell instead of three, so these older drives take far more rewriting than a modern budget drive, at a much higher cost per gigabyte. ADATA specifically tends to be chosen here for its firmware track record and warranty support.
1TB is the capacity most single-drive builds settle on.
Usually chosen for: write-heavy secondary roles and keeping older machines useful.
Good fit: mainstream desktop and laptop builds.
Ranked list
Speeds on this page are the manufacturer's 1TB ratings where published (5 of 5 drives), not the family headline figure. Rated writes at 1TB run 450–1450 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 1TB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  ADATA SU900 128GB, 250GB, 500GB, 1TB, 2TB | High-end | Silicon Motion SM2258H (1-Core, 4- | 560 | 1600 | Find on Amazon |
| 2 |  ADATA SP920 128GB, 250GB, 500GB, 1TB | Mid-range | Marvell 88SS9189 | 560 | 72 | Find on Amazon |
| 3 |  ADATA SP610 128GB, 250GB, 500GB, 1TB | Value | Silicon Motion SM2246EM | 560 | — | Find on Amazon |
| 4 |  ADATA SX9000 250GB, 500GB, 1TB | — | Marvell 88SS1093 | 2800 | 1000 | Find on Amazon |
| 5 |  ADATA XPG SX8000 128GB, 250GB, 500GB, 1TB | — | Silicon Motion SM2260 (Dual ARM Co | 1900 | 640 | Find on Amazon |
The parts, explained
1TB is the mainstream single-drive capacity.
MLC NAND is older and costs more per gigabyte, but is very durable.
Staying with ADATA means consistent firmware, tooling and warranty handling across the range.