TranscendTS256GSSD370
CrucialCT250BX100SSD1

Controller: Silicon Motion SM2246EN. NAND: Micron 20nm Synchronous MLC.

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

Real World Speed
Performance profile from 15,022 user samples
1,645 User Benchmarks
Best Bench: 93% 43GB free
Worst Bench: 59% 148GB free
Poor: 59% Great: 93%
SPEED RANK: 278th / 929
13,377 User Benchmarks
Best Bench: 100% 98GB free
Worst Bench: 66% 139GB free
Poor: 66% Great: 100%
SPEED RANK: 182nd / 929
Effective Speed
Effective SSD Speed
78.1 % 85.5 % Slightly faster effective speed.
+9%
Read
Avg. Sequential Read Speed
492 MB/s 507 MB/s +3%
Write
Avg. Sequential Write Speed
290 MB/s 358 MB/s Faster write speed.
+23%
4K Read
Avg. 4K Random Read Speed
23.4 MB/s 25 MB/s Slightly faster random read.
+7%
4K Write
Avg. 4K Random Write Speed
76.7 MB/s 78.6 MB/s +2%
Mixed
Avg. Sequential Mixed IO Speed
361 MB/s 414 MB/s Slightly faster mixed IO speed.
+15%
4K Mixed
Avg. 4K Random Mixed IO Speed
25.5 MB/s 27.8 MB/s Slightly faster random mixed IO.
+9%
Read
Peak Sequential Read Speed
526 MB/s +0% 525 MB/s
Write
Peak Sequential Write Speed
302 MB/s 370 MB/s Faster peak write speed.
+23%
4K Read
Peak 4K Random Read Speed
29 MB/s 30.4 MB/s +5%
4K Write
Peak 4K Random Write Speed
110 MB/s +2% 108 MB/s
Mixed
Peak Sequential Mixed IO Speed
379 MB/s 432 MB/s Slightly faster peak mixed IO speed.
+14%
4K Mixed
Peak 4K Random Mixed IO Speed
35.2 MB/s 37.8 MB/s Slightly faster peak random mixed IO.
+7%
Market Share
Based on 7,231,067 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.05 % 0.23 % Hugely higher market share.
+360%
Value
Value For Money
76.4 % Slightly better value.
+7%
71.6 %
User Rating
UBM User Rating
62 % 62 %
Price
Price (score)
$100 Cheaper.
+17%
$120
Age
Newest
46 Months 41 Months Slightly more recent.
+11%
DQ Read
Peak 4K-64Thread Read Speed
280 MB/s +1% 278 MB/s
DQ Write
Peak 4K-64Thread Write Speed
283 MB/s 311 MB/s Slightly faster peak deep queue write.
+10%
AS-SSD Total
AS-SSD Total Score
969 Pts 1,005 Pts +4%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
72.2 MB/s 72.6 MB/s +1%
ADQ Read
Avg. 4K-64Thread Read Speed
160 MB/s 165 MB/s +3%
ADQ Write
Avg. 4K-64Thread Write Speed
194 MB/s 213 MB/s Slightly faster deep queue write.
+10%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
46.3 MB/s 50.1 MB/s Slightly faster deep queue mixed IO.
+8%
Capacity
Capacity
256GB 250GB
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The 256GB Transcend SSD370 sports a Silicon Motion (SM2246EN) controller coupled with Micron 20nm synchronous MLC NAND. With peak sequential read/write speeds of 520/290 MBps and peak 4k read/write speeds of 29/116 the SSD370 has an effective speed which is amongst the bottom 25% of ~250GB drives. The effective speed is weighed down by a relatively weak sequential write speed of just 290 MBps. The performance highlight for the SSD370 is its ability to deal with mixed 4k IO which is arguably one of the best real world indicators. At current prices the SSD370 can't compete as there are both cheaper and faster alternatives on the market but prices are almost certain to drop at which time the SSD370 will fare far better in terms of value. [Oct '14 SSDrivePro]

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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]

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Solid State Drive Rankings (Price vs Performance) June 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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 i7-8700K $347Nvidia GTX 1070 $413Samsung 850 Evo 250GB $104
AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $125
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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