SamsungMZ-7PD128BW
SamsungMZ-7TE120BW

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

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC. Release date: Q3 2013.

Real World Speed
Performance profile from 111,003 user samples
28,042 User Benchmarks
Best Bench: 110% 118GB free
Worst Bench: 62% 80GB free (System drive)
Poor: 62% Great: 110%
SPEED RANK: 308th / 1030
82,961 User Benchmarks
Best Bench: 107% 74GB free (System drive)
Worst Bench: 64% 80GB free (System drive)
Poor: 64% Great: 107%
SPEED RANK: 294th / 1030
Effective Speed
Effective SSD Speed
88.5 % 90.1 % +2%
Read
Avg. Sequential Read Speed
444 MB/s 462 MB/s +4%
Write
Avg. Sequential Write Speed
332 MB/s 408 MB/s Faster write speed.
+23%
4K Read
Avg. 4K Random Read Speed
30.5 MB/s 38.3 MB/s Faster random read.
+26%
4K Write
Avg. 4K Random Write Speed
81.2 MB/s 85.8 MB/s Slightly faster random write.
+6%
Mixed
Avg. Sequential Mixed IO Speed
266 MB/s 305 MB/s Faster mixed IO speed.
+15%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.6 MB/s 45.4 MB/s Faster random mixed IO.
+28%
SusWrite
Avg. Sustained Write Speed
280 MB/s Hugely faster sustained write speed.
+120%
127 MB/s
Read
Peak Sequential Read Speed
496 MB/s 503 MB/s +1%
Write
Peak Sequential Write Speed
449 MB/s 489 MB/s Slightly faster peak write speed.
+9%
4K Read
Peak 4K Random Read Speed
36.4 MB/s 45.8 MB/s Faster peak random read.
+26%
4K Write
Peak 4K Random Write Speed
115 MB/s +1% 114 MB/s
Mixed
Peak Sequential Mixed IO Speed
333 MB/s 379 MB/s Faster peak mixed IO speed.
+14%
4K Mixed
Peak 4K Random Mixed IO Speed
44.1 MB/s 54.5 MB/s Faster peak random mixed IO.
+24%
SusWrite
Peak Sequential Sustained Write 60s Average
441 MB/s Hugely faster peak sustained write speed.
+151%
176 MB/s
Market Share
Based on 29,806,534 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.09 % 0.22 % Hugely higher market share.
+144%
Value
Value For Money
4.86 % 5.28 % Slightly better value.
+9%
User Rating
UBM User Rating
64 % 66 % +3%
Price
Price (score)
$160 $138 Cheaper.
+14%
Age
Newest
94 Months 85 Months Slightly more recent.
+10%
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s 382 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed
328 MB/s 362 MB/s Faster peak deep queue write.
+10%
AS-SSD Total
AS-SSD Total Score
1,197 Pts 1,264 Pts Slightly stronger server IO.
+6%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
156 MB/s 180 MB/s Faster peak deep queue mixed IO.
+15%
ADQ Read
Avg. 4K-64Thread Read Speed
318 MB/s 331 MB/s +4%
ADQ Write
Avg. 4K-64Thread Write Speed
236 MB/s 295 MB/s Faster deep queue write.
+25%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
122 MB/s 156 MB/s Faster deep queue mixed IO.
+28%
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

The 120GB Evo, like its 250GB sibling, features a second level Turbowrite cache (TWC). This 3GB block of high speed SLC memory allows the Evo to write data at 370 MB/s, nearly double its normal rate. When the TWC is full write speeds drop by around 50% but since consumers generally write less than 3GB in a typical write operation, the performance drop will rarely be noticed. On the other hand, in a server environment this sort of performance degradation would be unacceptable. Comparing the 120GB and 250GB Evos shows that they have similar performance profiles. The performance equivalence between the different capacities, coupled with the fact that their prices are almost linear, implies that both capacities represent roughly the same value for money. Within its TWC, the 120GB Evo is capable of chart topping burst IO rates and it sits squarely amongst the best performing 120GB drives. [Aug '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) August 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.
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 i5-9600K $192Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $43
Intel Core i5-9400F $151Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $325Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $47
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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