SamsungMZ-75E250B
CrucialCT240BX300SSD1

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND

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

Real World Speed
Performance profile from 227,024 user samples
226,397 User Benchmarks
Best Bench: 115% 71GB free
Worst Bench: 70% 144GB free
Poor: 70% Great: 115%
SPEED RANK: 66th / 873
627 User Benchmarks
Best Bench: 112% 187GB free
Worst Bench: 66% 98GB free
Poor: 66% Great: 112%
SPEED RANK: 88th / 873
Effective Speed
Effective SSD Speed
95 % Slightly faster effective speed.
+5%
90.5 % -5%
Read
Avg. Sequential Read Speed
500 MB/s -1% 504 MB/s +1%
Write
Avg. Sequential Write Speed
396 MB/s -12% 444 MB/s Slightly faster write speed.
+12%
4K Read
Avg. 4K Random Read Speed
37.9 MB/s Much faster random read.
+47%
25.7 MB/s -47%
4K Write
Avg. 4K Random Write Speed
77.6 MB/s +0% 77.4 MB/s -0%
Mixed
Avg. Sequential Mixed IO Speed
402 MB/s -19% 478 MB/s Faster mixed IO speed.
+19%
4K Mixed
Avg. 4K Random Mixed IO Speed
33.1 MB/s Slightly faster random mixed IO.
+14%
29 MB/s -14%
Read
Peak Sequential Read Speed
517 MB/s -2% 527 MB/s +2%
Write
Peak Sequential Write Speed
417 MB/s -18% 490 MB/s Faster peak write speed.
+18%
4K Read
Peak 4K Random Read Speed
47.1 MB/s Much faster peak random read.
+43%
33 MB/s -43%
4K Write
Peak 4K Random Write Speed
106 MB/s -11% 118 MB/s Slightly faster peak random write.
+11%
Mixed
Peak Sequential Mixed IO Speed
422 MB/s -22% 513 MB/s Faster peak mixed IO speed.
+22%
4K Mixed
Peak 4K Random Mixed IO Speed
48.2 MB/s Slightly faster peak random mixed IO.
+11%
43.6 MB/s -11%
Market Share
Based on 5,182,635 SSDs tested.
Market Share
Market Share (trailing 30 days)
8.89 % Insanely higher market share.
+3,604%
0.24 % -3,604%
Value
Value For Money
101 % Slightly better value.
+9%
92.7 % -9%
User Rating
UBM User Rating
125 % Hugely more popular.
+140%
52 % -140%
Price
Price (score)
$87 +1% $88 -1%
Age
Newest
37 Months -86% 5 Months Hugely more recent.
+86%
DQ Read
Peak 4K-64Thread Read Speed
374 MB/s Faster peak deep queue read.
+20%
312 MB/s -20%
DQ Write
Peak 4K-64Thread Write Speed
283 MB/s -20% 339 MB/s Faster peak deep queue write.
+20%
AS-SSD Total
AS-SSD Total Score
1,158 Pts +4% 1,117 Pts -4%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
120 MB/s Slightly faster peak deep queue mixed IO.
+10%
109 MB/s -10%
ADQ Read
Avg. 4K-64Thread Read Speed
187 MB/s Faster deep queue read.
+24%
151 MB/s -24%
ADQ Write
Avg. 4K-64Thread Write Speed
185 MB/s -2% 189 MB/s +2%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
64 MB/s Slightly faster deep queue mixed IO.
+8%
59.2 MB/s -8%
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

Crucial’s BX300 SSD is a 3D MLC entry level SSD, with debut pricing in line with the Samsung's 850 Evo, the current market leader. The BX300 is the fastest consumer MLC SSD available, with a 2% performance improvement over Crucial’s older MLC based MX200 and a 25% performance improvement over the TLC based MX300 which are both from Crucial’s more expensive MX product line. MLC NAND offers more consistent performance and has higher endurance than TLC NAND. Although Samsung’s 850 Evo (which is based on proprietary TLC V-NAND) has a 10% effective speed advantage over the BX300 the BX300 wins on write consistency. The 240GB BX300 has a three year warranty or 80 Terabytes Written (TBW) compared to five years or 75 (TBW) for the 250 GB 850 Evo. This makes for an interesting choice between the BX300 and the 850 Evo. Each model has an SLC cache which is proportional to its capacity, as a result the larger capacities offer better performance. The 120 GB BX300 has a 4 GB SLC cache, the 240 GB has 8 GB and the 480 GB has 16 GB. SLC caches improve burst write performance beyond the already respectable MLC write performance. Unfortunately, at least for now, the BX300 only comes in modest capacities, with the largest being 480 GB. For write consistency, thanks to its MLC NAND, the BX300 punches well above its price point. [Nov '17 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) January 2018 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-7700K $314Nvidia GTX 1070 $139Samsung 850 Evo 250GB $87
AMD Ryzen 7 1700 $294Nvidia GTX 1060-6GB $95Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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