Controller: LSI SandForce SF2281. Flash Memory: Intel Synchronous 25nm MLC. Release date: Q1 2012.

Controller: LSI SandForce SF2281. NAND Memory: Micron 20nm MLC. Release date: Q2 2014.

Real World Speed
Performance profile from 10,611 user samples
7,801 User Benchmarks
Best Bench: 87% 30GB free (System drive)
Worst Bench: 54% 52GB free (System drive)
Poor: 54% Great: 87%
SPEED RANK: 444th / 959
2,810 User Benchmarks
Best Bench: 72% 31GB free (System drive)
Worst Bench: 43% 48GB free (System drive)
Poor: 43% Great: 72%
SPEED RANK: 646th / 959
Effective Speed
Effective SSD Speed
73 % Faster effective speed.
60.4 %
Avg. Sequential Read Speed
385 MB/s Slightly faster read speed.
339 MB/s
Avg. Sequential Write Speed
152 MB/s Faster write speed.
129 MB/s
4K Read
Avg. 4K Random Read Speed
31.5 MB/s Much faster random read.
23.9 MB/s
4K Write
Avg. 4K Random Write Speed
80.8 MB/s Slightly faster random write.
75.7 MB/s
Avg. Sequential Mixed IO Speed
203 MB/s Faster mixed IO speed.
171 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
36.2 MB/s Slightly faster random mixed IO.
31.9 MB/s
Avg. Sustained Write Speed
129 MB/s Much faster sustained write speed.
96.8 MB/s
Peak Sequential Read Speed
442 MB/s 456 MB/s +3%
Peak Sequential Write Speed
168 MB/s 296 MB/s Much faster peak write speed.
4K Read
Peak 4K Random Read Speed
39.4 MB/s Faster peak random read.
30.9 MB/s
4K Write
Peak 4K Random Write Speed
116 MB/s +1% 115 MB/s
Peak Sequential Mixed IO Speed
219 MB/s +1% 216 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
46 MB/s Slightly faster peak random mixed IO.
40.7 MB/s
Peak Sequential Sustained Write 60s Average
159 MB/s Faster peak sustained write speed.
126 MB/s
Market Share
Based on 9,141,296 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.11 % 0.38 % Hugely higher market share.
Value For Money
35.5 % 46.7 % Much better value.
User Rating
UBM User Rating
61 % 61 %
Price (score)
$119 $64 Much cheaper.
80 Months 52 Months Much more recent.
DQ Read
Peak 4K-64Thread Read Speed
238 MB/s Hugely faster peak deep queue read.
124 MB/s
DQ Write
Peak 4K-64Thread Write Speed
165 MB/s Slightly faster peak deep queue write.
155 MB/s
AS-SSD Total
AS-SSD Total Score
786 Pts Stronger server IO.
608 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
188 MB/s Much faster peak deep queue mixed IO.
120 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
202 MB/s Hugely faster deep queue read.
89.5 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
144 MB/s Slightly faster deep queue write.
126 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
155 MB/s Much faster deep queue mixed IO.
90.8 MB/s
120GB 120GB

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]


The Kingston HyperX Fury has the same controller as its HyperX 3K sibling; the only difference between the two drives is the use of cheaper Micron 20nm NAND in the newer Fury. Comparing the performance differences between the HyperX Fury and 3K shows that the newer 20nm NAND results in an effective performance decrease of around 30% for a price saving of just 12%. The Fury was never aimed at the high performance sector of the market but given the known compressible performance weaknesses of its Sandforce 2281 controller and its relatively non-budget price tag, the 120GB Fury will struggle to find rational takers in today's market. There are far better value alternatives available for just a few more dollars. [Sep '14 SSDrivePro]


Solid State Drive Rankings (Price vs Performance) October 2018 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.
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
  • - 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.

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Intel Core i7-8700K $380Nvidia GTX 1070 $323Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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