Best 500GB SATA ADATA DRAM SSDs
There are 8 500GB SATA ADATA DRAM SSDs compared here. The fastest is the ADATA SU800 at 560 MB/s read. Sequential reads across the group span 550–560 MB/s at 500GB.
Why this configuration
A 500GB SATA ADATA 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. ADATA specifically tends to be chosen here for its firmware track record and warranty support.
500GB is a sensible OS-plus-a-few-games size.
Usually chosen for: reviving older machines, cheap capacity upgrades and second drives.
Good fit: workstation and creative loads that hammer random I/O; budget upgrades, older PCs and second drives.
Look elsewhere for: large-file creative work where NVMe pulls ahead.
Ranked list
| # | Model | Tier | Controller | Read MB/s (at 500GB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  ADATA SU900 128GB, 250GB, 500GB, 1TB, 2TB | High-end | Silicon Motion SM2258H (1-Core, 4- | 560* | 1600 | Find on Amazon |
| 2 |  ADATA SX950 250GB, 500GB, 960GB, 1.92TB | High-end | Silicon Motion SM2258G (1-Core, Cl | 560* | 1600 | Find on Amazon |
| 3 |  ADATA SU800 128GB, 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2258G (1-Core, Cl | 560* | 1600 | Check price on Amazon |
| 4 |  ADATA SP920 128GB, 250GB, 500GB, 1TB | Mid-range | Marvell 88SS9189 | 560* | 72 | Find on Amazon |
| 5 |  ADATA ULTIMATE SU800 M.2 128GB, 250GB, 500GB, 1TB | Mid-range | Silicon Motion SM2258 | 560* | 800 | Find on Amazon |
| 6 |  ADATA SX930 128GB, 250GB, 500GB | Mid-range | JMICRON JMF670H (Comparável à um S | 550* | 280 | Find on Amazon |
| 7 |  ADATA SP550 128GB, 250GB, 500GB, 960GB | Value | Silicon Motion SM2256K | 560* | 360 | Find on Amazon |
| 8 |  ADATA SP610 128GB, 250GB, 500GB, 1TB | Value | Silicon Motion SM2246EM | 560* | — | Find on Amazon |
* family rating — the manufacturer does not publish a 500GB figure for this drive.
The parts, explained
500GB is a comfortable OS-and-games starting point.
SATA III tops out around 550 MB/s, but it is the cheapest interface and fits any 2.5-inch bay or older laptop.
An onboard DRAM cache keeps the flash mapping table on the drive, holding random performance steady under sustained load.
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.