Average Bench: 67.9% (664th of 1040)

Based on 19,745 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 32.1% 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 135MB/s
Avg. 4K Random Read Speed 28.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the OCZ Vertex 3 120GB is 30.2%. 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 121MB/s
Avg. Sequential Write Speed 143MB/s

Average Bench

(Based on 19,745 samples)
Min Avg Max
303 Read 374 428
120 Write 143 156
162 Mixed 192 208
89.8 SusWrite 121 136
45.9% 208 MB/s
Min Avg Max
19.5 4K Read 28.3 34.8
40.6 4K Write 76.9 113
22.8 4K Mixed 33 40.9
126% 46.1 MB/s
Min Avg Max
94.9 DQ Read 172 191
111 DQ Write 138 153
53 DQ Mixed 135 162
107% 148 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
97GB free (System drive)
Firmware: 2.22
SusWrite @10s intervals: 110 119 127 128 122 126 MB/s
Read 409
Write 144
Mixed 203
SusWrite 122
48% 220 MB/s
4K Read 35.4
4K Write 104
4K Mixed 42.3
163% 60.4 MB/s
DQ Read 188
DQ Write 131
DQ Mixed 149
114% 156 MB/s
20GB free
Firmware: 2.15
SusWrite @10s intervals: 135 123 128 137 129 131 MB/s
Read 389
Write 149
Mixed 198
SusWrite 130
48% 217 MB/s
4K Read 25.7
4K Write 51.7
4K Mixed 30.7
106% 36 MB/s
DQ Read 190
DQ Write 139
DQ Mixed 158
120% 162 MB/s
15GB free (System drive)
Firmware: 2.15
SusWrite @10s intervals: 111 110 110 106 100 88 MB/s
Read 368
Write 130
Mixed 182
SusWrite 104
43% 196 MB/s
4K Read 26.6
4K Write 74.5
4K Mixed 29.8
118% 43.6 MB/s
DQ Read 116
DQ Write 140
DQ Mixed 121
93% 126 MB/s
19GB free (System drive)
Firmware: 2.22
SusWrite @10s intervals: 123 117 125 123 123 121 MB/s
Read 349
Write 150
Mixed 183
SusWrite 122
44% 201 MB/s
4K Read 15.8
4K Write 49.9
4K Mixed 18.2
74% 28 MB/s
DQ Read 187
DQ Write 142
DQ Mixed 155
118% 161 MB/s
19,745 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 32,751,612 SSDs tested.

Typical Vertex 3 120GB Builds (Compare 4,978 builds) See popular component choices, score breakdowns and rankings.
Gaming 42%
Speed boat
Desktop 81%
Aircraft carrier
Workstation 33%
Sail boat

Motherboard: Asus P8Z77-V LX

EDIT WITH CUSTOM PC BUILDER Value: 42% - Average Total price: $571

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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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) October 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.


7 months ago.

Still going strong after 10 years.

Very poor

6 years ago.


3 years ago.

ocz vertex 120gb = very useful on garbage

1040 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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Intel Core i5-10600K $260Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $50
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