SamsungMZ-7TE120BW
SamsungMZ-7PD128BW

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC.

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

Real World Speed
Performance profile from 60,305 user samples
46,595 User Benchmarks
Best Bench: 92% 55GB free
Worst Bench: 58% 44GB free
Poor: 58% Great: 92%
SPEED RANK: 284th / 921
13,710 User Benchmarks
Best Bench: 99% 51GB free
Worst Bench: 56% 11GB free
Poor: 56% Great: 99%
SPEED RANK: 260th / 921
Effective Speed
Effective SSD Speed
77.5 % 79 % +2%
Read
Avg. Sequential Read Speed
473 MB/s 487 MB/s +3%
Write
Avg. Sequential Write Speed
315 MB/s +2% 309 MB/s
4K Read
Avg. 4K Random Read Speed
35.9 MB/s Faster random read.
+25%
28.8 MB/s
4K Write
Avg. 4K Random Write Speed
56.8 MB/s 77.5 MB/s Much faster random write.
+36%
Mixed
Avg. Sequential Mixed IO Speed
311 MB/s 339 MB/s Slightly faster mixed IO speed.
+9%
4K Mixed
Avg. 4K Random Mixed IO Speed
19.3 MB/s 20.3 MB/s Slightly faster random mixed IO.
+5%
Read
Peak Sequential Read Speed
502 MB/s 521 MB/s +4%
Write
Peak Sequential Write Speed
351 MB/s 439 MB/s Faster peak write speed.
+25%
4K Read
Peak 4K Random Read Speed
44.3 MB/s Faster peak random read.
+24%
35.8 MB/s
4K Write
Peak 4K Random Write Speed
77.8 MB/s 112 MB/s Much faster peak random write.
+44%
Mixed
Peak Sequential Mixed IO Speed
343 MB/s 475 MB/s Much faster peak mixed IO speed.
+38%
4K Mixed
Peak 4K Random Mixed IO Speed
24 MB/s 25.2 MB/s Slightly faster peak random mixed IO.
+5%
Market Share
Based on 6,466,514 SSDs tested.
Market Share
Market Share (trailing 30 days)
1 % Hugely higher market share.
+270%
0.27 %
Value
Value For Money
29.5 % 32.3 % Slightly better value.
+9%
User Rating
UBM User Rating
62 % 63 % +2%
Price
Price (score)
$165 $160 +3%
Age
Newest
57 Months Slightly more recent.
+14%
66 Months
DQ Read
Peak 4K-64Thread Read Speed
353 MB/s 360 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed
238 MB/s 309 MB/s Faster peak deep queue write.
+30%
AS-SSD Total
AS-SSD Total Score
1,037 Pts 1,151 Pts Slightly stronger server IO.
+11%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
67.8 MB/s 78.6 MB/s Faster peak deep queue mixed IO.
+16%
ADQ Read
Avg. 4K-64Thread Read Speed
188 MB/s +1% 186 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
145 MB/s 177 MB/s Faster deep queue write.
+22%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
41.5 MB/s 45.5 MB/s Slightly faster deep queue mixed IO.
+10%
Capacity
Capacity
120GB 128GB
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The 120GB Evo, like its 250GB sibling, features a second level Turbowrite cache (TWC). This 3GB block of high speed SLC memory allows the Evo to write data at 370 MB/s, nearly double its normal rate. When the TWC is full write speeds drop by around 50% but since consumers generally write less than 3GB in a typical write operation, the performance drop will rarely be noticed. On the other hand, in a server environment this sort of performance degradation would be unacceptable. Comparing the 120GB and 250GB Evos shows that they have similar performance profiles. The performance equivalence between the different capacities, coupled with the fact that their prices are almost linear, implies that both capacities represent roughly the same value for money. Within its TWC, the 120GB Evo is capable of chart topping burst IO rates and it sits squarely amongst the best performing 120GB drives. [Aug '14 SSDrivePro]

MORE DETAILS

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) 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 $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $136
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $36Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Ultra Fit 32GB $12
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