SamsungMZ-7KE128BW
SamsungMZ-7PD128BW

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

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

Real World Speed
Performance profile from 44,624 user samples
15,365 User Benchmarks
Best Bench: 118% 81GB free
Worst Bench: 63% 41GB free (System drive)
Poor: 63% Great: 118%
SPEED RANK: 255th / 1058
29,259 User Benchmarks
Best Bench: 112% 98GB free
Worst Bench: 63% 93GB free (System drive)
Poor: 63% Great: 112%
SPEED RANK: 334th / 1058
Effective Speed
Effective SSD Speed
96.7 % Slightly faster effective speed.
+9%
88.9 %
Read
Avg. Sequential Read Speed
470 MB/s +5% 448 MB/s
Write
Avg. Sequential Write Speed
393 MB/s Faster write speed.
+19%
331 MB/s
4K Read
Avg. 4K Random Read Speed
31.9 MB/s +4% 30.6 MB/s
4K Write
Avg. 4K Random Write Speed
84.5 MB/s Slightly faster random write.
+5%
80.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed
295 MB/s Faster mixed IO speed.
+12%
264 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
39.1 MB/s Slightly faster random mixed IO.
+10%
35.7 MB/s
SusWrite
Avg. Sustained Write Speed
332 MB/s Faster sustained write speed.
+18%
281 MB/s
Read
Peak Sequential Read Speed
515 MB/s +4% 497 MB/s
Write
Peak Sequential Write Speed
484 MB/s Slightly faster peak write speed.
+8%
448 MB/s
4K Read
Peak 4K Random Read Speed
37.9 MB/s +4% 36.3 MB/s
4K Write
Peak 4K Random Write Speed
118 MB/s +4% 113 MB/s
Mixed
Peak Sequential Mixed IO Speed
359 MB/s Slightly faster peak mixed IO speed.
+9%
329 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
47.6 MB/s Slightly faster peak random mixed IO.
+8%
44.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
470 MB/s Slightly faster peak sustained write speed.
+6%
442 MB/s
Market Share
Based on 42,928,260 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 0.06 % Hugely higher market share.
+200%
Value
Value For Money
7.57 % Much better value.
+55%
4.89 %
User Rating
UBM User Rating
54 % 54 %
Price
Price (score)
$100 Much cheaper.
+38%
$160
Age
Newest
82 Months More recent.
+20%
103 Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s +3% 376 MB/s
DQ Write
Peak 4K-64Thread Write Speed
360 MB/s Faster peak deep queue write.
+11%
325 MB/s
AS-SSD Total
AS-SSD Total Score
1,261 Pts Slightly stronger server IO.
+6%
1,192 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
331 MB/s Hugely faster peak deep queue mixed IO.
+112%
156 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
334 MB/s +2% 327 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
284 MB/s Faster deep queue write.
+20%
236 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
268 MB/s Hugely faster deep queue mixed IO.
+118%
123 MB/s
Capacity
Capacity
128GB 128GB
ADVERTISEMENT

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

Solid State Drive Rankings (Price vs Performance) May 2021 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]

ADVERTISEMENT

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 i5-11400F $196Nvidia RTX 3060-Ti $400Crucial MX500 250GB $50
Intel Core i5-11600K $255Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i7-11700K $385Nvidia RTX 3080 $700Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $102SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback