SamsungMZ-75E250B
SanDiskSDSSDXPS-240G

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

VS
About

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

Real World Speed
Performance profile from 497,225 user samples
491,389 User Benchmarks
Best Bench: 124% 149GB free
Worst Bench: 75% 63GB free
Poor: 75% Great: 124%
SPEED RANK: 185th / 1011
5,836 User Benchmarks
Best Bench: 113% 171GB free
Worst Bench: 60% 75GB free (System drive)
Poor: 60% Great: 113%
SPEED RANK: 270th / 1011
Effective Speed
Effective SSD Speed
105 % Faster effective speed.
+17%
89.9 %
Read
Avg. Sequential Read Speed
472 MB/s +5% 451 MB/s
Write
Avg. Sequential Write Speed
444 MB/s Slightly faster write speed.
+10%
404 MB/s
4K Read
Avg. 4K Random Read Speed
40.1 MB/s Much faster random read.
+44%
27.9 MB/s
4K Write
Avg. 4K Random Write Speed
99 MB/s Much faster random write.
+37%
72.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed
373 MB/s Much faster mixed IO speed.
+46%
255 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
53.4 MB/s Much faster random mixed IO.
+63%
32.7 MB/s
SusWrite
Avg. Sustained Write Speed
250 MB/s 358 MB/s Much faster sustained write speed.
+43%
Read
Peak Sequential Read Speed
506 MB/s 508 MB/s +0%
Write
Peak Sequential Write Speed
491 MB/s +2% 482 MB/s
4K Read
Peak 4K Random Read Speed
47.8 MB/s Much faster peak random read.
+33%
35.9 MB/s
4K Write
Peak 4K Random Write Speed
134 MB/s Faster peak random write.
+19%
113 MB/s
Mixed
Peak Sequential Mixed IO Speed
413 MB/s Faster peak mixed IO speed.
+29%
319 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
65.5 MB/s Much faster peak random mixed IO.
+54%
42.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
323 MB/s 468 MB/s Much faster peak sustained write speed.
+45%
Market Share
Based on 19,104,221 SSDs tested.
Market Share
Market Share (trailing 30 days)
2.96 % Insanely higher market share.
+29,500%
0.01 %
Value
Value For Money
19.9 % Much better value.
+48%
13.4 %
User Rating
UBM User Rating
71 % Slightly more popular.
+11%
64 %
Price
Price (score)
$60 Cheaper.
+24%
$79
Age
Newest
59 Months Slightly more recent.
+9%
65 Months
DQ Read
Peak 4K-64Thread Read Speed
385 MB/s +2% 376 MB/s
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s Slightly faster peak deep queue write.
+7%
337 MB/s
AS-SSD Total
AS-SSD Total Score
1,292 Pts Slightly stronger server IO.
+7%
1,209 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
368 MB/s Hugely faster peak deep queue mixed IO.
+124%
164 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
344 MB/s Slightly faster deep queue read.
+11%
309 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
308 MB/s Faster deep queue write.
+21%
255 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
318 MB/s Hugely faster deep queue mixed IO.
+118%
146 MB/s
Capacity
Capacity
250GB 240GB
ADVERTISEMENT

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) November 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]

ADVERTISEMENT

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 i5-9400F $148Nvidia GTX 1660 $210Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660S (Super) $234Samsung 850 Evo 120GB $150
Intel Core i7-9700K $349Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Ultra Fit 32GB $14
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback