CrucialCT250BX100SSD1
SanDiskSDSSDXPS-240G

Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC.

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

Real World Speed
Performance profile from 15,339 user samples
10,745 User Benchmarks
Best Bench: 104% 59GB free
Worst Bench: 60% 8GB free (System drive)
Poor: 60% Great: 104%
SPEED RANK: 221st / 955
4,594 User Benchmarks
Best Bench: 109% 202GB free
Worst Bench: 65% 46GB free (System drive)
Poor: 65% Great: 109%
SPEED RANK: 190th / 955
Effective Speed
Effective SSD Speed
85.8 % 88.8 % +4%
Read
Avg. Sequential Read Speed
483 MB/s 486 MB/s +1%
Write
Avg. Sequential Write Speed
351 MB/s 427 MB/s Faster write speed.
+22%
4K Read
Avg. 4K Random Read Speed
25.7 MB/s 28.5 MB/s Slightly faster random read.
+11%
4K Write
Avg. 4K Random Write Speed
81 MB/s Slightly faster random write.
+5%
77 MB/s
Mixed
Avg. Sequential Mixed IO Speed
321 MB/s 401 MB/s Faster mixed IO speed.
+25%
4K Mixed
Avg. 4K Random Mixed IO Speed
32.9 MB/s Much faster random mixed IO.
+34%
24.5 MB/s
SusWrite
Avg. Sustained Write Speed
268 MB/s 366 MB/s Much faster sustained write speed.
+37%
Read
Peak Sequential Read Speed
522 MB/s +1% 517 MB/s
Write
Peak Sequential Write Speed
371 MB/s 495 MB/s Much faster peak write speed.
+33%
4K Read
Peak 4K Random Read Speed
30.9 MB/s 35.9 MB/s Faster peak random read.
+16%
4K Write
Peak 4K Random Write Speed
116 MB/s +3% 113 MB/s
Mixed
Peak Sequential Mixed IO Speed
429 MB/s 487 MB/s Slightly faster peak mixed IO speed.
+14%
4K Mixed
Peak 4K Random Mixed IO Speed
44.9 MB/s Slightly faster peak random mixed IO.
+14%
39.3 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
363 MB/s 475 MB/s Much faster peak sustained write speed.
+31%
Market Share
Based on 7,585,287 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.18 % Hugely higher market share.
+157%
0.07 %
Value
Value For Money
76.7 % 79.8 % +4%
User Rating
UBM User Rating
62 % 64 % +3%
Price
Price (score)
$110 $105 +5%
Age
Newest
42 Months Slightly more recent.
+14%
49 Months
DQ Read
Peak 4K-64Thread Read Speed
281 MB/s 374 MB/s Much faster peak deep queue read.
+33%
DQ Write
Peak 4K-64Thread Write Speed
321 MB/s 334 MB/s +4%
AS-SSD Total
AS-SSD Total Score
1,028 Pts 1,206 Pts Stronger server IO.
+17%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
197 MB/s Faster peak deep queue mixed IO.
+22%
162 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
224 MB/s Slightly faster deep queue read.
+7%
210 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
257 MB/s Faster deep queue write.
+18%
217 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
131 MB/s Hugely faster deep queue mixed IO.
+108%
63 MB/s
Capacity
Capacity
250GB 240GB
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The 250GB Crucial BX100 SSD is the value orientated variant of Crucial's M range of SSDs. The BX100 uses the same NAND as its premium MX200 sibling but the BX100 uses a Silicon Motion controller as opposed to the Marvel controller found in the MX range. Feature wise the BX100 is missing SLC caching and there is no hardware encryption (so security frameworks such as windows Bitlocker will operate less efficiently). In terms of I/O performance the BX100 looks promising. Comparing the BX100 and MX100 shows that the newer BX100 may be faster than its predecessor but as yet there are insufficient user benchmarks to draw any definitive conclusions. The BX100 has only just started hitting the shelves so there's plenty of room for price reductions from its already reasonable price tag. I will revisit this review when I have more performance data for the BX100. [Jan '15 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) July 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 - 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 $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i7-7700K $300AMD RX 480 $280Samsung 850 Pro 256GB $136
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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