SamsungMZ-75E250B
SanDiskSDSSDXPS-240G

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

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

Real World Speed
Performance profile from 371,313 user samples
366,179 User Benchmarks
Best Bench: 125% 165GB free (System drive)
Worst Bench: 70% 233GB free
Poor: 70% Great: 125%
SPEED RANK: 159th / 980
5,134 User Benchmarks
Best Bench: 115% 82GB free (System drive)
Worst Bench: 63% 94GB free (System drive)
Poor: 63% Great: 115%
SPEED RANK: 193rd / 980
Effective Speed
Effective SSD Speed
105 % Slightly faster effective speed.
+12%
93.2 %
Read
Avg. Sequential Read Speed
470 MB/s +2% 459 MB/s
Write
Avg. Sequential Write Speed
439 MB/s Slightly faster write speed.
+6%
414 MB/s
4K Read
Avg. 4K Random Read Speed
39.8 MB/s Much faster random read.
+38%
28.9 MB/s
4K Write
Avg. 4K Random Write Speed
98.5 MB/s Faster random write.
+24%
79.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed
369 MB/s Much faster mixed IO speed.
+42%
260 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
53.2 MB/s Much faster random mixed IO.
+57%
33.8 MB/s
SusWrite
Avg. Sustained Write Speed
248 MB/s 361 MB/s Much faster sustained write speed.
+46%
Read
Peak Sequential Read Speed
508 MB/s 509 MB/s +0%
Write
Peak Sequential Write Speed
493 MB/s +3% 478 MB/s
4K Read
Peak 4K Random Read Speed
48.7 MB/s Much faster peak random read.
+35%
36.2 MB/s
4K Write
Peak 4K Random Write Speed
136 MB/s Faster peak random write.
+15%
118 MB/s
Mixed
Peak Sequential Mixed IO Speed
415 MB/s Much faster peak mixed IO speed.
+32%
314 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
66.4 MB/s Much faster peak random mixed IO.
+53%
43.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
327 MB/s 473 MB/s Much faster peak sustained write speed.
+45%
Market Share
Based on 11,452,932 SSDs tested.
Market Share
Market Share (trailing 30 days)
3.94 % Insanely higher market share.
+9,750%
0.04 %
Value
Value For Money
131 % Better value.
+27%
104 %
User Rating
UBM User Rating
126 % Hugely more popular.
+97%
64 %
Price
Price (score)
$70 Slightly cheaper.
+11%
$79
Age
Newest
49 Months Slightly more recent.
+11%
55 Months
DQ Read
Peak 4K-64Thread Read Speed
387 MB/s +2% 378 MB/s
DQ Write
Peak 4K-64Thread Write Speed
360 MB/s Slightly faster peak deep queue write.
+6%
340 MB/s
AS-SSD Total
AS-SSD Total Score
1,299 Pts Slightly stronger server IO.
+6%
1220 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
368 MB/s Hugely faster peak deep queue mixed IO.
+123%
165 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
342 MB/s Slightly faster deep queue read.
+7%
319 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
311 MB/s Slightly faster deep queue write.
+11%
280 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
317 MB/s Hugely faster deep queue mixed IO.
+116%
147 MB/s
Capacity
Capacity
250GB 240GB
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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 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

Solid State Drive Rankings (Price vs Performance) January 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 $360Nvidia GTX 1070 $320Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $204Samsung 850 Evo 500GB $110
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Extreme 16GB $22
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