SamsungMZ-7PD128BW
SamsungMZ-7PC128B/WW
$109

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

 $109 

Controller: Samsung 3-core MCX. NAND: Samsung 27nm Toggle Mode MLC. Release date: Q4 2011.

Real World Speed
Performance profile from 65,550 user samples
32,384 User Benchmarks
Best Bench: 110% 119GB free
Worst Bench: 63% 96GB free (System drive)
Poor: 63% Great: 110%
SPEED RANK: 320th / 1058
33,166 User Benchmarks
Best Bench: 76% 352GB free
Worst Bench: 49% 55GB free (System drive)
Poor: 49% Great: 76%
SPEED RANK: 750th / 1058
Effective Speed
Effective SSD Speed
90 % Much faster effective speed.
+42%
63.4 %
Read
Avg. Sequential Read Speed
448 MB/s +2% 438 MB/s
Write
Avg. Sequential Write Speed
338 MB/s Much faster write speed.
+57%
215 MB/s
4K Read
Avg. 4K Random Read Speed
31 MB/s Much faster random read.
+49%
20.8 MB/s
4K Write
Avg. 4K Random Write Speed
81.6 MB/s Much faster random write.
+60%
51 MB/s
Mixed
Avg. Sequential Mixed IO Speed
268 MB/s Faster mixed IO speed.
+22%
219 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
36.2 MB/s Much faster random mixed IO.
+66%
21.8 MB/s
SusWrite
Avg. Sustained Write Speed
287 MB/s Much faster sustained write speed.
+44%
200 MB/s
Read
Peak Sequential Read Speed
496 MB/s +1% 489 MB/s
Write
Peak Sequential Write Speed
444 MB/s Much faster peak write speed.
+43%
310 MB/s
4K Read
Peak 4K Random Read Speed
36.3 MB/s Much faster peak random read.
+51%
24 MB/s
4K Write
Peak 4K Random Write Speed
113 MB/s Much faster peak random write.
+74%
65.1 MB/s
Mixed
Peak Sequential Mixed IO Speed
327 MB/s Faster peak mixed IO speed.
+14%
287 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
43.9 MB/s Much faster peak random mixed IO.
+72%
25.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
440 MB/s Much faster peak sustained write speed.
+45%
304 MB/s
Market Share
Based on 45,413,780 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.05 % Higher market share.
+25%
0.04 %
Value
Value For Money
4.95 % Slightly better value.
+6%
4.65 %
User Rating
UBM User Rating
54 % +4% 52 %
Price
Price (score)
$160 $109 Much cheaper.
+32%
Age
Newest
105 Months More recent.
+10%
117 Months
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s Faster peak deep queue read.
+27%
295 MB/s
DQ Write
Peak 4K-64Thread Write Speed
328 MB/s Hugely faster peak deep queue write.
+283%
85.7 MB/s
AS-SSD Total
AS-SSD Total Score
1,194 Pts Much stronger server IO.
+62%
737 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
155 MB/s Faster peak deep queue mixed IO.
+17%
133 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
329 MB/s Faster deep queue read.
+26%
262 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
245 MB/s Hugely faster deep queue write.
+259%
68.2 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
123 MB/s Faster deep queue mixed IO.
+16%
106 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

The 128GB Samsung 830 is nearly two and a half years old which puts it at a significant disadvantage to more recent models. With peak and average sequential read/write speeds of 512/323 and 410/239 MB/s it's not too shabby, especially considering its age. The sequential figures actually match the current group leaders. The small file 4K peak and average read/write speeds of 22.5/60.3 and 17/40 MB/s are not as impressive and lag the group leaders by 50%. Reduced small file performance weighs on the 128GB 830's effective speed which is 376 MB/s and 20% lower than the average of 453 MB/s for the highest voted group leaders. Finally comparing the 128 and 256GB versions shows that the larger drive has a superior performance profile, which is not uncommon for SSDs but newer models from Samsung don't share this trait. [Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 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]

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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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11400F $260Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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