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 23,584 user samples
7,574 User Benchmarks
Best Bench: 119% 54GB free (System drive)
Worst Bench: 68% 14GB free
Poor: 68% Great: 119%
SPEED RANK: 176th / 980
16,010 User Benchmarks
Best Bench: 111% 43GB free
Worst Bench: 61% 32GB free (System drive)
Poor: 61% Great: 111%
SPEED RANK: 262nd / 980
Effective Speed
Effective SSD Speed
98.1 % Slightly faster effective speed.
+12%
87.6 %
Read
Avg. Sequential Read Speed
469 MB/s Slightly faster read speed.
+7%
439 MB/s
Write
Avg. Sequential Write Speed
396 MB/s Faster write speed.
+26%
314 MB/s
4K Read
Avg. 4K Random Read Speed
31.8 MB/s +4% 30.5 MB/s
4K Write
Avg. 4K Random Write Speed
91.8 MB/s Slightly faster random write.
+8%
85.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
297 MB/s Faster mixed IO speed.
+16%
256 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
39.7 MB/s Slightly faster random mixed IO.
+12%
35.6 MB/s
SusWrite
Avg. Sustained Write Speed
330 MB/s Faster sustained write speed.
+29%
256 MB/s
Read
Peak Sequential Read Speed
515 MB/s +4% 493 MB/s
Write
Peak Sequential Write Speed
482 MB/s Slightly faster peak write speed.
+8%
445 MB/s
4K Read
Peak 4K Random Read Speed
38.4 MB/s +5% 36.7 MB/s
4K Write
Peak 4K Random Write Speed
127 MB/s Slightly faster peak random write.
+7%
119 MB/s
Mixed
Peak Sequential Mixed IO Speed
356 MB/s Slightly faster peak mixed IO speed.
+9%
328 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
48.3 MB/s Slightly faster peak random mixed IO.
+9%
44.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
463 MB/s Slightly faster peak sustained write speed.
+6%
437 MB/s
Market Share
Based on 11,452,932 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.09 % 0.18 % Hugely higher market share.
+100%
Value
Value For Money
36.3 % +1% 35.8 %
User Rating
UBM User Rating
63 % 63 %
Price
Price (score)
$183 $160 Slightly cheaper.
+12%
Age
Newest
54 Months More recent.
+28%
75 Months
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s +3% 376 MB/s
DQ Write
Peak 4K-64Thread Write Speed
353 MB/s Slightly faster peak deep queue write.
+8%
327 MB/s
AS-SSD Total
AS-SSD Total Score
1,263 Pts Slightly stronger server IO.
+5%
1,199 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
332 MB/s Hugely faster peak deep queue mixed IO.
+114%
155 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
336 MB/s +2% 328 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
293 MB/s Faster deep queue write.
+25%
235 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
271 MB/s Hugely faster deep queue mixed IO.
+126%
120 MB/s
Capacity
Capacity
128GB 128GB
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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

Solid State Drive Rankings (Price vs Performance) January 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 $320Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $204Samsung 850 Evo 500GB $110
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Extreme 16GB $22
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