SamsungMZ-7PD128BW
SanDiskSDSSDHP-128G-G25

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC.

Controller: Marvell SS889175. Memory: SanDisk 19nm eX2 ABL MLC.

Real World Speed
Performance profile from 19,138 user samples
13,467 User Benchmarks
Best Bench: 97% 50GB free
Worst Bench: 57% 11GB free
Poor: 57% Great: 97%
SPEED RANK: 265th / 921
5,671 User Benchmarks
Best Bench: 80% 119GB free
Worst Bench: 49% 7GB free
Poor: 49% Great: 80%
SPEED RANK: 496th / 921
Effective Speed
Effective SSD Speed
78.6 % Faster effective speed.
+22%
64.3 %
Read
Avg. Sequential Read Speed
486 MB/s Faster read speed.
+20%
405 MB/s
Write
Avg. Sequential Write Speed
308 MB/s Much faster write speed.
+45%
212 MB/s
4K Read
Avg. 4K Random Read Speed
28.8 MB/s Slightly faster random read.
+11%
25.9 MB/s
4K Write
Avg. 4K Random Write Speed
77.2 MB/s Slightly faster random write.
+12%
69.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
337 MB/s Much faster mixed IO speed.
+34%
252 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
20.1 MB/s Faster random mixed IO.
+16%
17.3 MB/s
Read
Peak Sequential Read Speed
521 MB/s Faster peak read speed.
+17%
446 MB/s
Write
Peak Sequential Write Speed
439 MB/s Much faster peak write speed.
+56%
282 MB/s
4K Read
Peak 4K Random Read Speed
35.8 MB/s Slightly faster peak random read.
+10%
32.4 MB/s
4K Write
Peak 4K Random Write Speed
111 MB/s Slightly faster peak random write.
+10%
101 MB/s
Mixed
Peak Sequential Mixed IO Speed
475 MB/s Much faster peak mixed IO speed.
+51%
315 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
24.8 MB/s Slightly faster peak random mixed IO.
+7%
23.2 MB/s
Market Share
Based on 6,418,470 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.22 % Higher market share.
+29%
0.17 %
Value
Value For Money
32.1 % +1% 31.6 %
User Rating
UBM User Rating
63 % +3% 61 %
Price
Price (score)
$160 $125 Cheaper.
+22%
Age
Newest
66 Months 63 Months +5%
DQ Read
Peak 4K-64Thread Read Speed
361 MB/s Faster peak deep queue read.
+19%
304 MB/s
DQ Write
Peak 4K-64Thread Write Speed
310 MB/s Much faster peak deep queue write.
+58%
196 MB/s
AS-SSD Total
AS-SSD Total Score
1,152 Pts Stronger server IO.
+27%
905 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
77.2 MB/s Much faster peak deep queue mixed IO.
+64%
47 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
180 MB/s Faster deep queue read.
+18%
152 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
175 MB/s Faster deep queue write.
+26%
139 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
44.7 MB/s Much faster deep queue mixed IO.
+39%
32.2 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

The 128GB Sandisk Ultra Plus proved to be a bit of a disappointment in comparison to its larger 256GB sibling. The 256GB version has more NAND modules which enable peak sequential write speeds in the region of 450 MB/s. On the 128GB version we saw a peak sequential write speed of just 279 MB/s which is significantly lower than the market leaders which also manage to hit the high 400's. Across the core performance metrics, the 128GB Ultra Plus is around 25% slower than the average of its top competitors and, unlike its 256GB sibling, really struggles to keep up with its direct competition. In terms of value for money the Ultra Plus fares a little better thanks to its reasonably low price tag but there are far better deals to be had in the 128GB category. [Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) April 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]

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Group Test Results

  • Best user rated - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $170Nvidia GTX 1060-6GB $310Samsung 850 Evo 500GB $137
Intel Core i7-7700K $290AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $45
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $12
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