Best 128GB OCZ MLC SSDs
There are 12 128GB OCZ MLC SSDs compared here. The fastest is the OCZ RD400 at 2200 MB/s read at 128GB, and the highest-rated for endurance is the OCZ VX500 (592 TBW). Sequential reads across the group span 400–2200 MB/s at 128GB.
Why this configuration
A 128GB OCZ 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. OCZ specifically tends to be chosen here for its firmware track record and warranty support.
At 128GB this is really a boot or cache drive rather than a main library.
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 128GB ratings where published (6 of 12 drives), not the family headline figure. 3 of the 12 are rated slower at 128GB than at their fastest capacity. Rated writes at 128GB run 400–620 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 128GB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  OCZ RD400 128GB, 250GB, 500GB | Mid-range | TOSHIBA TC56NCP070GSB (POSSIVELMEN | 2200 | 296 | Find on Amazon |
| 2 |  OCZ RD400 AIC 128GB, 250GB, 500GB, 1TB | Mid-range | TOSHIBA TC56NCP070GSB (POSSIVELMEN | 2200 | 592 | Find on Amazon |
| 3 |  OCZ VECTOR 128GB, 250GB, 500GB | Mid-range | Indilinx IDX500M00-BC Barefoot 3 | 550 | 36.5 | Find on Amazon |
| 4 |  OCZ VECTOR 150 128GB, 250GB, 500GB | Mid-range | Indilinx IDX500M00-BC Barefoot 3 | 550* | 91 | Find on Amazon |
| 5 |  OCZ VECTOR 180 128GB, 500GB, 960GB | Mid-range | OCZ Barefoot 3 M00 | 550* | 91 | Find on Amazon |
| 6 |  OCZ VERTEX 4 128GB, 250GB, 500GB | Mid-range | Indilinx(IDX400M00-BC) Everest 2 | 535 | — | Find on Amazon |
| 7 |  OCZ VERTEX 3 128GB, 250GB, 500GB | Value | SandForce SF-2281VA1-SDC-ES | 550* | — | Find on Amazon |
| 8 |  OCZ VX500 128GB, 250GB, 500GB, 1TB | Value | Toshiba TC358790 | 550 | 592 | Find on Amazon |
| 9 |  OCZ RADEON R7 128GB, 250GB, 500GB | Value | OCZ Barefoot 3 M00 | 550* | 43.8 | Find on Amazon |
| 10 |  OCZ VERTEX 460 128GB, 250GB, 500GB | Value | Indilinx Barefoot 3 M10 | 545* | 21.9 | Find on Amazon |
| 11 |  OCZ ARC 100 128GB, 250GB, 500GB | Value | OCZ Barefoot 3 M10 | 490* | 22 | Find on Amazon |
| 12 |  OCZ AGILITY 4 128GB, 250GB | Value | Indilinx Everest 2 IDX400M00-B0 | 400 | — | 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.
MLC NAND is older and costs more per gigabyte, but is very durable.
Staying with OCZ means consistent firmware, tooling and warranty handling across the range.