CrucialCT250BX100SSD1
SamsungMZ-7PD256BW

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

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC.

Real World Speed
Performance profile from 33,542 user samples
10,745 User Benchmarks
Best Bench: 104% 59GB free
Worst Bench: 60% 8GB free (System drive)
Poor: 60% Great: 104%
SPEED RANK: 220th / 955
22,797 User Benchmarks
Best Bench: 117% 88GB free (System drive)
Worst Bench: 62% 123GB free (System drive)
Poor: 62% Great: 117%
SPEED RANK: 162nd / 955
Effective Speed
Effective SSD Speed
85.8 % 92 % Slightly faster effective speed.
+7%
Read
Avg. Sequential Read Speed
483 MB/s Slightly faster read speed.
+6%
454 MB/s
Write
Avg. Sequential Write Speed
351 MB/s 355 MB/s +1%
4K Read
Avg. 4K Random Read Speed
25.7 MB/s 30.5 MB/s Faster random read.
+19%
4K Write
Avg. 4K Random Write Speed
81 MB/s 84.7 MB/s +5%
Mixed
Avg. Sequential Mixed IO Speed
321 MB/s Slightly faster mixed IO speed.
+11%
290 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
32.9 MB/s 38.3 MB/s Faster random mixed IO.
+16%
SusWrite
Avg. Sustained Write Speed
268 MB/s 287 MB/s Slightly faster sustained write speed.
+7%
Read
Peak Sequential Read Speed
522 MB/s +2% 510 MB/s
Write
Peak Sequential Write Speed
371 MB/s 482 MB/s Faster peak write speed.
+30%
4K Read
Peak 4K Random Read Speed
30.9 MB/s 36.8 MB/s Faster peak random read.
+19%
4K Write
Peak 4K Random Write Speed
116 MB/s 119 MB/s +3%
Mixed
Peak Sequential Mixed IO Speed
429 MB/s Faster peak mixed IO speed.
+20%
358 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
44.9 MB/s 48 MB/s Slightly faster peak random mixed IO.
+7%
SusWrite
Peak Sequential Sustained Write 60s Average
363 MB/s 473 MB/s Much faster peak sustained write speed.
+30%
Market Share
Based on 7,569,776 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.17 % 0.31 % Hugely higher market share.
+82%
Value
Value For Money
76.7 % Hugely better value.
+89%
40.5 %
User Rating
UBM User Rating
62 % 63 % +2%
Price
Price (score)
$110 Much cheaper.
+62%
$289
Age
Newest
42 Months Much more recent.
+39%
69 Months
DQ Read
Peak 4K-64Thread Read Speed
281 MB/s 385 MB/s Much faster peak deep queue read.
+37%
DQ Write
Peak 4K-64Thread Write Speed
321 MB/s 328 MB/s +2%
AS-SSD Total
AS-SSD Total Score
1,028 Pts 1,221 Pts Stronger server IO.
+19%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
197 MB/s Slightly faster peak deep queue mixed IO.
+13%
174 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
224 MB/s 334 MB/s Much faster deep queue read.
+49%
ADQ Write
Avg. 4K-64Thread Write Speed
257 MB/s 260 MB/s +1%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
131 MB/s 138 MB/s Slightly faster deep queue mixed IO.
+5%
Capacity
Capacity
250GB 256GB
ADVERTISEMENT

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 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. [Jun '13 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]

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 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 i5-8600K $245AMD 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
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback