AdataASP920SS3-256GM-C
SanDiskSDSSDXPS-240G

Controller: Marvell 88SS9189. Flash Memory: Micron 20nm MLC. Release date: Q2 2014.

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

Real World Speed
Performance profile from 13,685 user samples
2,823 User Benchmarks
Best Bench: 99% 179GB free (System drive)
Worst Bench: 52% 32GB free
Poor: 52% Great: 99%
SPEED RANK: 498th / 1072
10,862 User Benchmarks
Best Bench: 114% 83GB free (System drive)
Worst Bench: 65% 20GB free (System drive)
Poor: 65% Great: 114%
SPEED RANK: 308th / 1072
Effective Speed
Effective SSD Speed
79 % 91.7 % Faster effective speed.
+16%
Read
Avg. Sequential Read Speed
429 MB/s 455 MB/s Slightly faster read speed.
+6%
Write
Avg. Sequential Write Speed
293 MB/s 406 MB/s Much faster write speed.
+39%
4K Read
Avg. 4K Random Read Speed
25 MB/s 28.9 MB/s Faster random read.
+16%
4K Write
Avg. 4K Random Write Speed
73.5 MB/s 76.5 MB/s +4%
Mixed
Avg. Sequential Mixed IO Speed
240 MB/s 258 MB/s Slightly faster mixed IO speed.
+8%
4K Mixed
Avg. 4K Random Mixed IO Speed
31.5 MB/s 33.4 MB/s Slightly faster random mixed IO.
+6%
SusWrite
Avg. Sustained Write Speed
233 MB/s 350 MB/s Much faster sustained write speed.
+50%
Read
Peak Sequential Read Speed
486 MB/s 509 MB/s +5%
Write
Peak Sequential Write Speed
346 MB/s 479 MB/s Much faster peak write speed.
+38%
4K Read
Peak 4K Random Read Speed
30 MB/s 35.6 MB/s Faster peak random read.
+19%
4K Write
Peak 4K Random Write Speed
111 MB/s 113 MB/s +2%
Mixed
Peak Sequential Mixed IO Speed
307 MB/s 316 MB/s +3%
4K Mixed
Peak 4K Random Mixed IO Speed
42.2 MB/s 42.4 MB/s +0%
SusWrite
Peak Sequential Sustained Write 60s Average
342 MB/s 480 MB/s Much faster peak sustained write speed.
+40%
Market Share
Based on 75,728,385 SSDs tested
Market Share
Market Share (trailing 30 days)
0 % 0 %
Value
Value For Money
6.11 % 13.7 % Hugely better value.
+124%
User Rating
UBM User Rating
53 % 54 % +2%
Price
Price (score)
$203 $79 Much cheaper.
+61%
Age
Newest
120 Months 118 Months +2%
DQ Read
Peak 4K-64Thread Read Speed
374 MB/s 376 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed
320 MB/s 343 MB/s Slightly faster peak deep queue write.
+7%
AS-SSD Total
AS-SSD Total Score
1,152 Pts 1,214 Pts Slightly stronger server IO.
+5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
211 MB/s Faster peak deep queue mixed IO.
+29%
164 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
285 MB/s 325 MB/s Faster deep queue read.
+14%
ADQ Write
Avg. 4K-64Thread Write Speed
238 MB/s 267 MB/s Faster deep queue write.
+12%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
108 MB/s 148 MB/s Much faster deep queue mixed IO.
+37%
Capacity
Capacity
256GB 240GB
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The ADATA SP920 shares the same controller (Marvel 88SS9189), and for capacities over 256GB the same NAND configuration as the excellent Crucial M550. The lower capacity SP920 drives however have fewer NAND channels than the M550. Comparing the 512GB M550 and SP920 shows that the drives have comparable performance but at the 256GB and 128GB capacities the M550 has a significantly faster sequential write speed. The 256GB SP920 does have an average effective speed and it is priced below average so overall it represents reasonably good value for money. That said, there are both faster and cheaper SSDs available in the now both heavily saturated and extremely competitive SSD market. [May '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) April 2024 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 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 value for money 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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $124Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $179Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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