Best 128GB DRAM SSDs
There are 60 128GB DRAM SSDs compared here. The fastest is the Apacer Z280 at 2750 MB/s read, and the highest-rated for endurance is the ADATA SU800 (1600 TBW). Sequential reads across the group span 400–2750 MB/s at 128GB.
Why this configuration
A 128GB DRAM SSD is the consistency-first shortlist. An onboard DRAM cache holds the flash mapping table on the drive itself, so random performance stays steady when the workload keeps going rather than tailing off.
At 128GB this is really a boot or cache drive rather than a main library.
Usually chosen for: workstations, virtual machines and anything that writes continuously.
Good fit: workstation and creative loads that hammer random I/O.
Ranked list
The top 20 of 60 are listed. The full SSD catalogue filters on every spec.
Speeds on this page are the manufacturer's 128GB ratings where published (27 of 60 drives), not the family headline figure. 12 of the 60 are rated slower at 128GB than at their fastest capacity. Rated writes at 128GB run 150–620 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 128GB) | 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 840 PRO 128GB, 250GB, 500GB | Top-tier | Samsung's 3-Core MDX Controller | 540 | 73 | Check price on Amazon |
| 3 |  Samsung 850 EVO 128GB, 250GB, 500GB, 1TB, 2TB, 4TB | High-end | Samsung MGX Controller (2-Core, 8- | 540* | 300 | Check price on Amazon |
| 4 |  Samsung 840 EVO 128GB, 250GB, 500GB, 1TB, 750GB | High-end | Samsung's 3-Core 400MHz MEX Contro | 540* | — | Check price on Amazon |
| 5 |  Samsung 750 EVO 128GB, 250GB, 500GB | High-end | Samsung MGX Controller | 540* | 100 | Check price on Amazon |
| 6 |  Samsung 850 EVO M.2 128GB, 250GB, 500GB, 1TB | High-end | Samsung MGX Controller (2-Core, 8- | 540* | 150 | Check price on Amazon |
| 7 |  Plextor M8PeY 128GB, 250GB, 500GB, 1TB | High-end | Marvell 88SS1093 | 1600 | 768 | Find on Amazon |
| 8 |  Plextor M8PeG 128GB, 250GB, 500GB, 1TB | High-end | Marvell 88SS1093 | 1600 | 768 | Find on Amazon |
| 9 |  ADATA SU900 128GB, 250GB, 500GB, 1TB, 2TB | High-end | Silicon Motion SM2258H (1-Core, 4- | 560 | 1600 | Find on Amazon |
| 10 |  OCZ TRION 150 128GB, 250GB, 500GB, 960GB | High-end | Toshiba TC58NC1000 (Phison PS3110- | 550* | 240 | Find on Amazon |
| 11 |  Crucial M500 128GB, 250GB, 500GB, 960GB | High-end | Marvell 88SS9187 | 500* | 72 | Find on Amazon |
| 12 |  ADATA SU800 128GB, 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2258G (1-Core, Cl | 560 | 1600 | Check price on Amazon |
| 13 |  Mushkin PILOT 128GB, 250GB, 500GB, 1TB, 2TB | Mid-range | Silicon Motion SM2262 | 2710* | — | Find on Amazon |
| 14 |  OCZ RD400 128GB, 250GB, 500GB | Mid-range | TOSHIBA TC56NCP070GSB (POSSIVELMEN | 2200 | 296 | Find on Amazon |
| 15 |  OCZ RD400 AIC 128GB, 250GB, 500GB, 1TB | Mid-range | TOSHIBA TC56NCP070GSB (POSSIVELMEN | 2200 | 592 | Find on Amazon |
| 16 |  Plextor M8PeGN 128GB, 250GB, 500GB, 1TB | Mid-range | Marvell 88SS1093 | 1600 | 768 | Find on Amazon |
| 17 |  Biostar M500 128GB, 250GB, 500GB, 1TB | Mid-range | Possivelmente Silicon Motion SM226 | 1500 | — | Find on Amazon |
| 18 |  ADATA SP920 128GB, 250GB, 500GB, 1TB | Mid-range | Marvell 88SS9189 | 560 | 72 | Find on Amazon |
| 19 |  ADATA ULTIMATE SU800 M.2 128GB, 250GB, 500GB, 1TB | Mid-range | Silicon Motion SM2258 | 560 | 800 | Find on Amazon |
| 20 |  HP S700 PRO 128GB, 250GB, 500GB, 1TB | Mid-range | Silicon Motion SM2258 | 560 | 650 | Find on Amazon |
* family rating — the manufacturer does not publish a 128GB figure for this drive.
The parts, explained
128GB suits a boot drive or a light secondary disk.
An onboard DRAM cache keeps the flash mapping table on the drive, holding random performance steady under sustained load.