SamsungMZ-7KE128BW
IntelSSDSC2CW120A3

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

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

Real World Speed
Performance profile from 15,432 user samples
7,627 User Benchmarks
Best Bench: 112% 84GB free
Worst Bench: 63% 15GB free
Poor: 63% Great: 112%
SPEED RANK: 128th / 929
7,805 User Benchmarks
Best Bench: 77% 26GB free
Worst Bench: 45% 62GB free
Poor: 45% Great: 77%
SPEED RANK: 543rd / 929
Effective Speed
Effective SSD Speed
91.6 % Much faster effective speed.
+47%
62.3 %
Read
Avg. Sequential Read Speed
502 MB/s Slightly faster read speed.
+6%
474 MB/s
Write
Avg. Sequential Write Speed
390 MB/s Hugely faster write speed.
+173%
143 MB/s
4K Read
Avg. 4K Random Read Speed
31.4 MB/s Faster random read.
+16%
27 MB/s
4K Write
Avg. 4K Random Write Speed
85.8 MB/s Slightly faster random write.
+15%
74.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed
410 MB/s Hugely faster mixed IO speed.
+94%
211 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
28.4 MB/s Hugely faster random mixed IO.
+89%
15 MB/s
Read
Peak Sequential Read Speed
528 MB/s +2% 516 MB/s
Write
Peak Sequential Write Speed
492 MB/s Hugely faster peak write speed.
+202%
163 MB/s
4K Read
Peak 4K Random Read Speed
37.7 MB/s 38.1 MB/s +1%
4K Write
Peak 4K Random Write Speed
117 MB/s +4% 113 MB/s
Mixed
Peak Sequential Mixed IO Speed
493 MB/s Hugely faster peak mixed IO speed.
+106%
239 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
39.5 MB/s Hugely faster peak random mixed IO.
+89%
20.9 MB/s
Market Share
Based on 7,227,843 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.1 % 0.14 % Much higher market share.
+40%
Value
Value For Money
31.7 % Slightly better value.
+9%
29.2 %
User Rating
UBM User Rating
62 % +2% 61 %
Price
Price (score)
$200 $125 Much cheaper.
+37%
Age
Newest
47 Months Much more recent.
+38%
76 Months
DQ Read
Peak 4K-64Thread Read Speed
370 MB/s Much faster peak deep queue read.
+61%
230 MB/s
DQ Write
Peak 4K-64Thread Write Speed
336 MB/s Hugely faster peak deep queue write.
+106%
163 MB/s
AS-SSD Total
AS-SSD Total Score
1210 Pts Much stronger server IO.
+56%
773 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
142 MB/s Hugely faster peak deep queue mixed IO.
+141%
58.9 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
193 MB/s Much faster deep queue read.
+50%
129 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
208 MB/s Much faster deep queue write.
+62%
128 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
76 MB/s Hugely faster deep queue mixed IO.
+120%
34.5 MB/s
Capacity
Capacity
128GB 120GB
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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]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) June 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]

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Group Test Results

  • Best user rated - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $317Nvidia GTX 1070 $413Samsung 850 Evo 250GB $104
AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $125
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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