SamsungMZ-75E250B
SamsungMZ-7KE256BW

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

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Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

Real World Speed
Performance profile from 542,221 user samples
469,025 User Benchmarks
Best Bench: 124% 149GB free
Worst Bench: 76% 23GB free (System drive)
Poor: 76% Great: 124%
SPEED RANK: 182nd / 1011
73,196 User Benchmarks
Best Bench: 126% 238GB free
Worst Bench: 77% 44GB free (System drive)
Poor: 77% Great: 126%
SPEED RANK: 188th / 1011
Effective Speed
Effective SSD Speed
107 % +1% 106 %
Read
Avg. Sequential Read Speed
472 MB/s 476 MB/s +1%
Write
Avg. Sequential Write Speed
443 MB/s +4% 427 MB/s
4K Read
Avg. 4K Random Read Speed
40.8 MB/s Faster random read.
+19%
34.2 MB/s
4K Write
Avg. 4K Random Write Speed
102 MB/s Slightly faster random write.
+7%
95 MB/s
Mixed
Avg. Sequential Mixed IO Speed
372 MB/s Slightly faster mixed IO speed.
+8%
346 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
54.6 MB/s Faster random mixed IO.
+21%
45.1 MB/s
SusWrite
Avg. Sustained Write Speed
253 MB/s 376 MB/s Much faster sustained write speed.
+49%
Read
Peak Sequential Read Speed
507 MB/s 517 MB/s +2%
Write
Peak Sequential Write Speed
492 MB/s +0% 491 MB/s
4K Read
Peak 4K Random Read Speed
48.2 MB/s Slightly faster peak random read.
+10%
44 MB/s
4K Write
Peak 4K Random Write Speed
133 MB/s +4% 128 MB/s
Mixed
Peak Sequential Mixed IO Speed
412 MB/s Slightly faster peak mixed IO speed.
+7%
384 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
65.4 MB/s Slightly faster peak random mixed IO.
+14%
57.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
328 MB/s 486 MB/s Much faster peak sustained write speed.
+48%
Market Share
Based on 16,734,081 SSDs tested.
Market Share
Market Share (trailing 30 days)
2.67 % Hugely higher market share.
+536%
0.42 %
Value
Value For Money
13.4 % Much better value.
+59%
8.41 %
User Rating
UBM User Rating
127 % More popular.
+30%
98 %
Price
Price (score)
$104 Much cheaper.
+47%
$195
Age
Newest
56 Months Slightly more recent.
+8%
61 Months
DQ Read
Peak 4K-64Thread Read Speed
385 MB/s 388 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s +1% 356 MB/s
AS-SSD Total
AS-SSD Total Score
1,292 Pts +1% 1,279 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
368 MB/s +3% 357 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
347 MB/s +4% 333 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
312 MB/s Slightly faster deep queue write.
+5%
297 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
320 MB/s Slightly faster deep queue mixed IO.
+9%
294 MB/s
Capacity
Capacity
250GB 256GB
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The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders[Dec '14 SSDrivePro]

MORE DETAILS

The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) August 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
AMD Ryzen 5 3600 $198Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
Intel Core i5-9600K $230Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $233Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $82SanDisk Extreme 16GB $24
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