Best 1TB SATA ADATA TLC SSDs
There are 5 1TB SATA ADATA TLC SSDs compared here. The fastest is the ADATA SU800 at 560 MB/s read at 1TB. Sequential reads across the group span 520–560 MB/s at 1TB.
Why this configuration
A 1TB SATA ADATA TLC 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. 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: reviving older machines, cheap capacity upgrades and second drives.
Good fit: everyday all-rounder use, from OS drive to game library; budget upgrades, older PCs and second drives.
Look elsewhere for: large-file creative work where NVMe pulls ahead.
Ranked list
Speeds on this page are the manufacturer's 1TB ratings where published (4 of 5 drives), not the family headline figure. Rated writes at 1TB run 450–520 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 1TB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  ADATA SU800 128GB, 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2258G (1-Core, Cl | 560 | 1600 | Check price on Amazon |
| 2 |  ADATA ULTIMATE SU800 M.2 128GB, 250GB, 500GB, 1TB | Mid-range | Silicon Motion SM2258 | 560 | 800 | Find on Amazon |
| 3 |  ADATA SU750 250GB, 500GB, 1TB | Value | Realtek RTS5733DMQ (2-Canais) | 550 | 800 | Find on Amazon |
| 4 |  ADATA SU720 500GB, 1TB, 2TB | Value | — | 520 | 400 | Find on Amazon |
| 5 |  ADATA SU760 250GB, 500GB, 1TB | Value | (AGUARDANDO REVIEW, PRODUTO RECÉM | — | 800 | Find on Amazon |
The parts, explained
1TB is the mainstream single-drive capacity.
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.
Staying with ADATA means consistent firmware, tooling and warranty handling across the range.
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.