SamsungMZ-7PD128BW
Group Average(9 Highest-Voted)
Real World Speed
Performance profile from 13,218 user samples
13,218 User Benchmarks
Best Bench: 108% 116GB free
Worst Bench: 60% 15GB free (System drive)
Poor: 60% Great: 108%
SPEED RANK: 218th / 959
Effective Speed
Effective SSD Speed
88.1 % Slightly faster effective speed.
+6%
83.4 %
Read
Avg. Sequential Read Speed
443 MB/s +3% 428 MB/s
Write
Avg. Sequential Write Speed
320 MB/s +1% 316 MB/s
4K Read
Avg. 4K Random Read Speed
30.9 MB/s +2% 30.3 MB/s
4K Write
Avg. 4K Random Write Speed
86.3 MB/s +1% 85.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed
257 MB/s 274 MB/s Slightly faster mixed IO speed.
+7%
4K Mixed
Avg. 4K Random Mixed IO Speed
36.2 MB/s +2% 35.7 MB/s
SusWrite
Avg. Sustained Write Speed
252 MB/s Faster sustained write speed.
+19%
212 MB/s
Read
Peak Sequential Read Speed
493 MB/s +2% 485 MB/s
Write
Peak Sequential Write Speed
441 MB/s Faster peak write speed.
+19%
370 MB/s
4K Read
Peak 4K Random Read Speed
36.5 MB/s 36.8 MB/s +1%
4K Write
Peak 4K Random Write Speed
117 MB/s 121 MB/s +3%
Mixed
Peak Sequential Mixed IO Speed
324 MB/s 331 MB/s +2%
4K Mixed
Peak 4K Random Mixed IO Speed
44.2 MB/s 45.5 MB/s +3%
SusWrite
Peak Sequential Sustained Write 60s Average
425 MB/s Much faster peak sustained write speed.
+46%
290 MB/s
Market Share
Based on 9,081,289 SSDs tested.
User Rating
UBM User Rating
63 % 63.8 % +1%
Market Share
Market Share (trailing 30 days)
0.2 % 0.21 % Slightly higher market share.
+7%
Price
Price (score)
$160 112 USD Much cheaper.
+43%
Value
Value For Money
36 % 45.6 % Better value.
+27%
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s Faster peak deep queue read.
+18%
317 MB/s
DQ Write
Peak 4K-64Thread Write Speed
319 MB/s Slightly faster peak deep queue write.
+10%
290 MB/s
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
155 MB/s 220 MB/s Much faster peak deep queue mixed IO.
+42%
ADQ Read
Avg. 4K-64Thread Read Speed
325 MB/s Faster deep queue read.
+26%
258 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
240 MB/s +4% 231 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
120 MB/s 163 MB/s Much faster deep queue mixed IO.
+36%
Age
Newest
72 Months 59.2 Months More recent.
+22%
AS-SSD Total
AS-SSD Total Score
1,188 Pts Slightly stronger server IO.
+12%
1,065 Pts
Capacity
Capacity
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) October 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]

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 i7-8700K $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $110
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback