Average Bench: 68.1% (645th of 1026)

Based on 18,163 user benchmarks.  Models: OCZ-VERTEX3, OCZ-VERT OCZ-VERTEX3, OCZ-VERTEX3 LP, OCZ-VERT EX3

The 120GB OCZ Vertex 3 is almost 3 years old which makes it twice as old as most of the drives in the group test. With sequential peak and average read/write speeds of 510/157 and 390/130 MB/s the 120GB Vertex 3 has good read speeds but lags the group leaders by 50% at writing. This is explained by its Sandforce 2281 controller which is infamous for stability issues and relatively slow incompressible data write speeds. Small file 4K peak and average read/write speeds clocked in at 31/103 and 23/61 MB/s which matches the group leaders, a superb result considering the Vertex 3's age. Overall the 120GB Vertex 3 has an effective speed of 383 MB/s which is only 16% lower than the group leaders which averaged 444 MB/s. The Vertex is a capable drive let down only by its relatively slow peak sequential write speed of 157 MB/s. [Feb '14 SSDrivePro]


Above average average bench

The OCZ Vertex 3 120GB averaged 31.8% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K-64Thread Mixed IO Speed 134MB/s
Avg. 4K Random Read Speed 28.8MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the OCZ Vertex 3 120GB is 31.1%. This is a relatively narrow range which indicates that the OCZ Vertex 3 120GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 120MB/s
Avg. Sequential Write Speed 142MB/s

Average Bench

(Based on 18,163 samples)
Min Avg Max
300 Read 374 432
114 Write 142 158
156 Mixed 191 209
89 SusWrite 120 137
45.6% 207 MB/s
Min Avg Max
19.5 4K Read 28.8 35.3
31.4 4K Write 76.9 112
21.2 4K Mixed 33.4 41.7
127% 46.4 MB/s
Min Avg Max
94.7 DQ Read 172 191
96.7 DQ Write 136 155
49.8 DQ Mixed 134 162
106% 148 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
80GB free (System drive)
Firmware: 2.22
SusWrite @10s intervals: 137 125 132 130 123 129 MB/s
Read 413
Write 136
Mixed 198
SusWrite 130
48% 219 MB/s
4K Read 32.5
4K Write 94.1
4K Mixed 37.6
147% 54.7 MB/s
DQ Read 186
DQ Write 149
DQ Mixed 147
116% 161 MB/s
63GB free (System drive)
Firmware: 2.15
SusWrite @10s intervals: 125 119 128 124 118 124 MB/s
Read 404
Write 138
Mixed 205
SusWrite 123
48% 217 MB/s
4K Read 25.2
4K Write 46.4
4K Mixed 29.2
100% 33.6 MB/s
DQ Read 190
DQ Write 142
DQ Mixed 158
120% 163 MB/s
112GB free
Firmware: 2.25
SusWrite @10s intervals: 133 134 134 135 133 134 MB/s
Read 376
Write 150
Mixed 197
SusWrite 134
47% 214 MB/s
4K Read 21.5
4K Write 50
4K Mixed 25.4
92% 32.3 MB/s
DQ Read 145
DQ Write 143
DQ Mixed 107
90% 132 MB/s
18,163 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,418,026 SSDs tested.

Typical Vertex 3 120GB Builds (Compare 20,749 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 66%
Battle cruiser
Workstation 44%
Speed boat

Motherboard: Asrock Z77 Extreme4 - $183

EDIT WITH CUSTOM PC BUILDER Value: 42% - Average Total price: $888

Popular Vertex 3 120GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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Solid State Drive Rankings (Price vs Performance) August 2020 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Controller: SandForce SF2281. NAND: Intel 25nm Synchronous MLC

More bang for the buck...

Added 6 years ago.

Good (edit your comment) Add link

2 years ago.

Have used this drive for about 7 years now. Still performs wonderfully. I got it for about 80 bucks on sale at the time and it seems to outperform many other drives that are newer around the same price today.


5 months ago.

Still going strong after 10 years.

Very poor

6 years ago.


3 years ago.

ocz vertex 120gb = very useful on garbage

1026 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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