Average Bench: 79.4% (330th of 956)

Based on 1,009 user benchmarks.  Model: CT120BX300SSD1

Good average bench

The Crucial BX300 120GB averaged 20.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial BX300 120GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 101MB/s
Avg. 4K Random Read Speed 26.4MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial BX300 120GB is 43.7%. This is a relatively wide range which indicates that the Crucial BX300 120GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 132MB/s
Avg. Sustained Write Speed 239MB/s

Average Bench

(Based on 1,009 samples)
Min Avg Max
385 Read 489 526
177 Write 354 456
174 Mixed 362 431
151 SusWrite 239 369
80.7% 361 MB/s
Min Avg Max
15.5 4K Read 26.4 33.6
26.9 4K Write 66.9 116
11.6 4K Mixed 28.7 48.5
112% 40.6 MB/s
Min Avg Max
22.9 DQ Read 132 205
43.7 DQ Write 204 349
12.5 DQ Mixed 101 223
95.3% 146 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
57GB free (System drive)
Firmware: M2CR021
SusWrite @10s intervals: 441 446 425 464 457 308 MB/s
Read 508
Write 461
Mixed 451
SusWrite 424
104% 461 MB/s
4K Read 43.2
4K Write 132
4K Mixed 61.3
214% 78.7 MB/s
DQ Read 288
DQ Write 341
DQ Mixed 221
192% 283 MB/s
70GB free (System drive)
Firmware: M2CR021
SusWrite @10s intervals: 263 369 419 421 408 404 MB/s
Read 475
Write 420
Mixed 406
SusWrite 381
95% 420 MB/s
4K Read 31.1
4K Write 85.4
4K Mixed 48.7
155% 55.1 MB/s
DQ Read 33.2
DQ Write 340
DQ Mixed 209
155% 194 MB/s
33GB free (System drive)
Firmware: M2CR010
SusWrite @10s intervals: 258 226 229 230 232 233 MB/s
Read 484
Write 411
Mixed 407
SusWrite 235
86% 384 MB/s
4K Read 31.5
4K Write 91
4K Mixed 44.1
152% 55.5 MB/s
DQ Read 175
DQ Write 231
DQ Mixed 204
154% 203 MB/s
1,009 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,023,630 SSDs tested.


Approx. $50 @ launch in Aug '17
EbayUS $453 mins
AmazonUS $5023 mins
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Typical BX300 120GB Builds (Compare 14,293 builds) See popular component choices, score breakdowns and rankings.
Gaming 68%
Battle cruiser
Desktop 70%
Battle cruiser
Workstation 65%
Battle cruiser

Motherboard: MSI B350 TOMAHAWK (MS-7A34) - $90

EDIT WITH CUSTOM PC BUILDER Value: 87% - Excellent Total price: $730

Popular BX300 120GB compatible motherboards:

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.
Solid State Drive Rankings (Price vs Performance) August 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]


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.


Controller: Silicon Motion SM2258. Flash Memory: Micron 3D MLC

You dont need a new computer, just the Crucial BX300...

Added 8 months ago.


8 months ago.

Super fast speed for a smaller 120 drive. Compares to 850 Pro speeds for about $100 less! Found it on sale for $69.99 and is the best bang for the buck!


8 months ago.


Really good price to performance on this MLC SSD. for a 120GB it delivers a punch as most 120GB models have limited performance, as producers want you to buy the larger capacity, more expensive models such as 240GB and so on. This drive competes with other top quality, low price storage drives. —Nov '17

956 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i7-8700K $330Nvidia GTX 1070 $370Samsung 850 Evo 250GB $95
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $120
Intel Core i5-8600K $245AMD RX 480 $280Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $945SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
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