SamsungMZ-7PD128BW
IntelSSDSC2BW120A401

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Controller: LSI SandForce SF2281. Memory: Intel Synchronous 20nm MLC. Release date: Q3 2013.

Real World Speed
Performance profile from 22,787 user samples
17,833 User Benchmarks
Best Bench: 111% 119GB free
Worst Bench: 61% 20GB free (System drive)
Poor: 61% Great: 111%
SPEED RANK: 268th / 991
4,954 User Benchmarks
Best Bench: 81% 107GB free
Worst Bench: 50% 42GB free (System drive)
Poor: 50% Great: 81%
SPEED RANK: 595th / 991
Effective Speed
Effective SSD Speed
88 % Much faster effective speed.
+31%
67.4 %
Read
Avg. Sequential Read Speed
441 MB/s Faster read speed.
+18%
374 MB/s
Write
Avg. Sequential Write Speed
334 MB/s Hugely faster write speed.
+157%
130 MB/s
4K Read
Avg. 4K Random Read Speed
29.9 MB/s +3% 29 MB/s
4K Write
Avg. 4K Random Write Speed
83.2 MB/s Slightly faster random write.
+7%
77.8 MB/s
Mixed
Avg. Sequential Mixed IO Speed
264 MB/s Much faster mixed IO speed.
+50%
176 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
35.6 MB/s Slightly faster random mixed IO.
+9%
32.7 MB/s
SusWrite
Avg. Sustained Write Speed
274 MB/s Hugely faster sustained write speed.
+142%
113 MB/s
Read
Peak Sequential Read Speed
491 MB/s Faster peak read speed.
+16%
424 MB/s
Write
Peak Sequential Write Speed
444 MB/s Hugely faster peak write speed.
+208%
144 MB/s
4K Read
Peak 4K Random Read Speed
36.4 MB/s 36.9 MB/s +1%
4K Write
Peak 4K Random Write Speed
118 MB/s Slightly faster peak random write.
+8%
109 MB/s
Mixed
Peak Sequential Mixed IO Speed
325 MB/s Much faster peak mixed IO speed.
+68%
194 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
44.4 MB/s Slightly faster peak random mixed IO.
+6%
41.9 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
434 MB/s Hugely faster peak sustained write speed.
+239%
128 MB/s
Market Share
Based on 12,089,043 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.17 % Hugely higher market share.
+325%
0.04 %
Value
Value For Money
36 % 40.7 % Slightly better value.
+13%
User Rating
UBM User Rating
63 % Slightly more popular.
+7%
59 %
Price
Price (score)
$160 $89 Much cheaper.
+44%
Age
Newest
76 Months 65 Months Slightly more recent.
+14%
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s Hugely faster peak deep queue read.
+83%
205 MB/s
DQ Write
Peak 4K-64Thread Write Speed
324 MB/s Hugely faster peak deep queue write.
+128%
142 MB/s
AS-SSD Total
AS-SSD Total Score
1,194 Pts Much stronger server IO.
+72%
696 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
154 MB/s Faster peak deep queue mixed IO.
+21%
127 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
313 MB/s Much faster deep queue read.
+76%
178 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
241 MB/s Hugely faster deep queue write.
+96%
123 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
120 MB/s Faster deep queue mixed IO.
+17%
103 MB/s
Capacity
Capacity
128GB 120GB
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The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. [Feb '14 SSDrivePro]

MORE DETAILS

At just 5 months old the Intel 530 Series SSD is the newest SSD in the group test. Unfortunately the 530 uses the same basic formula we have seen going back two and a half years. Sporting a Sandforce 2281 controller coupled with 20nm NAND flash the performance profile struggles with incompressible data and predictably favours reads over writes as with all the other Sandforce 2281 drives we have seen. With peak and average sequential read/write speeds of 498/154 and 454/131 MB/s the 120GB Intel 530 lags the group leaders by 50%. Small file 4K peak and average performance clocked in at 34/101 and 26/76 MB/s which is slightly above average for a leading 120GB SSD. There are faster and cheaper alternatives available in the group test[Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) February 2019 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.
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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $336Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $149Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $90
Intel Core i5-8600K $259Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $750SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $126SanDisk Ultra Fit 32GB $12
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