SanDiskSDSSDXPS-240G
SamsungMZ-7KE256BW

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

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

Real World Speed
Performance profile from 67,464 user samples
5,882 User Benchmarks
Best Bench: 117% 184GB free (System drive)
Worst Bench: 59% 222GB free
Poor: 59% Great: 117%
SPEED RANK: 234th / 1000
61,582 User Benchmarks
Best Bench: 126% 133GB free
Worst Bench: 72% 164GB free (System drive)
Poor: 72% Great: 126%
SPEED RANK: 176th / 1000
Effective Speed
Effective SSD Speed
91.8 % 105 % Slightly faster effective speed.
+14%
Read
Avg. Sequential Read Speed
456 MB/s 474 MB/s +4%
Write
Avg. Sequential Write Speed
408 MB/s 422 MB/s +3%
4K Read
Avg. 4K Random Read Speed
28.6 MB/s 34 MB/s Faster random read.
+19%
4K Write
Avg. 4K Random Write Speed
76.2 MB/s 95.1 MB/s Faster random write.
+25%
Mixed
Avg. Sequential Mixed IO Speed
258 MB/s 342 MB/s Much faster mixed IO speed.
+33%
4K Mixed
Avg. 4K Random Mixed IO Speed
33.3 MB/s 44.9 MB/s Much faster random mixed IO.
+35%
SusWrite
Avg. Sustained Write Speed
357 MB/s 365 MB/s +2%
Read
Peak Sequential Read Speed
511 MB/s 515 MB/s +1%
Write
Peak Sequential Write Speed
481 MB/s 491 MB/s +2%
4K Read
Peak 4K Random Read Speed
36.4 MB/s 44.4 MB/s Faster peak random read.
+22%
4K Write
Peak 4K Random Write Speed
121 MB/s 130 MB/s Slightly faster peak random write.
+7%
Mixed
Peak Sequential Mixed IO Speed
302 MB/s 384 MB/s Faster peak mixed IO speed.
+27%
4K Mixed
Peak 4K Random Mixed IO Speed
43.9 MB/s 59.2 MB/s Much faster peak random mixed IO.
+35%
SusWrite
Peak Sequential Sustained Write 60s Average
478 MB/s 486 MB/s +2%
Market Share
Based on 14,373,882 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.04 % 0.41 % Hugely higher market share.
+925%
Value
Value For Money
102 % Much better value.
+43%
71.2 %
User Rating
UBM User Rating
64 % 99 % Much more popular.
+55%
Price
Price (score)
$79 Much cheaper.
+52%
$163
Age
Newest
59 Months 58 Months +2%
DQ Read
Peak 4K-64Thread Read Speed
378 MB/s 388 MB/s +3%
DQ Write
Peak 4K-64Thread Write Speed
338 MB/s 358 MB/s Slightly faster peak deep queue write.
+6%
AS-SSD Total
AS-SSD Total Score
1,222 Pts 1,284 Pts Slightly stronger server IO.
+5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
165 MB/s 357 MB/s Hugely faster peak deep queue mixed IO.
+116%
ADQ Read
Avg. 4K-64Thread Read Speed
319 MB/s 345 MB/s Slightly faster deep queue read.
+8%
ADQ Write
Avg. 4K-64Thread Write Speed
273 MB/s 304 MB/s Slightly faster deep queue write.
+11%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
147 MB/s 304 MB/s Hugely faster deep queue mixed IO.
+107%
Capacity
Capacity
240GB 256GB
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The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '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) May 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
Intel Core i7-8700K $356Nvidia GTX 1070 $314Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $145Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $108Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $90SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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