Average Bench: 72.8% (559th of 1021)

more Based on 14,481 user benchmarks.  Models: INTEL SSDSC2CW120A3, INTEL SSDSC2BW120A3, INTEL SSDSC2CW120A3H, INTE SSDSC2CW120A3, INTEL SS DSC2CW120A3, INTEL SSDSC2CW12, INTEL SSDSC2CW120A

The Intel 520 Series was Intel's first SSD to feature a Sandforce 2281 controller. This controller has powered countless SSDs over the last three years but is now dated and is known to be limited in the area of incompressible write speed. The 120GB Intel 520 scored peak and average sequential read/write speeds of 514/157 and 421/133. These read speeds are good but the peak write of 157 MB/s lags the group leaders average of 313 MB/s by nearly 100%. This relative inability to write lowers the 520's overall effective speed to 403 MB/s or 15% lower than the 459 MB/s achieved by the group leaders. At two years of age the Intel 520 can no longer compete with newer drives, there is far better value available amongst the group leaders[Feb '14 SSDrivePro]

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Good average bench

The Intel 520 Series 120GB averaged 27.2% 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.

Strengths

Avg. 4K-64Thread Mixed IO Speed 162MB/s
Avg. 4K Random Read Speed 31.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Intel 520 Series 120GB is 31.7%. This is a relatively narrow range which indicates that the Intel 520 Series 120GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 131MB/s
Avg. Sequential Write Speed 154MB/s
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Average Bench

(Based on 14,481 samples)
Min Avg Max
302 Read 385 445
121 Write 154 173
180 Mixed 207 222
95.9 SusWrite 131 166
48.5% 219 MB/s
Min Avg Max
22 4K Read 31.3 39.9
37.4 4K Write 78.8 116
24.3 4K Mixed 35.5 45.7
135% 48.5 MB/s
Min Avg Max
115 DQ Read 213 239
114 DQ Write 149 167
55 DQ Mixed 162 191
126% 175 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
52GB free (System drive)
Firmware: 400i
SusWrite @10s intervals: 120 138 136 134 132 133 MB/s
Read 433
Write 163
Mixed 212
SusWrite 132
52% 235 MB/s
4K Read 32.4
4K Write 79.2
4K Mixed 35.4
136% 49 MB/s
DQ Read 170
DQ Write 155
DQ Mixed 169
125% 165 MB/s
14,481 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 26,405,480 SSDs tested.

 Prices

Approx. $160 @ launch in Feb '12
AmazonUS $857 months
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Typical 520 Series 120GB Builds (Compare 60,169 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 33%
Sail boat
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 27%
Raft

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 56% - Above average Total price: $419

Popular 520 Series 120GB systems:

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.

UserBenchmark of the month

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.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) May 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]

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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.

 Comments

Controller: LSI SandForce SF2281. Flash Memory: Intel Synchronous 25nm MLC

Get fast, play fierce...

Added 6 years ago.

Poor

6 years ago.


Your
opinion?
1021 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $165Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $199Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $56
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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