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AdataASP920SS3-256GM-C
SamsungMZ-7TE250BW
▲ 53529 ▼

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

VS
▲ 5335,450 ▼

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC. Release date: Q3 2013.

Effective Speed 
+21%
Real World Speed
Performance profile from 219,938 user samples
Benchmark your SSD here
2,823 User Benchmarks
Best Bench: 99% 179GB free (System drive)
Worst Bench: 52% 32GB free
Poor: 52% Great: 99%
SPEED RANK: 498th / 1072
217,115 User Benchmarks
Best Bench: 118% 68GB free
Worst Bench: 64% 231GB free
Poor: 64% Great: 118%
SPEED RANK: 276th / 1072
Effective Speed
Effective SSD Speed 		79 % 95.9 % Faster effective speed.
+21%
Average Score 
+27%
Read
Avg. Sequential Read Speed 		429 MB/s 465 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed 		293 MB/s 394 MB/s Much faster write speed.
+34%
4K Read
Avg. 4K Random Read Speed 		25 MB/s 38.8 MB/s Much faster random read.
+55%
4K Write
Avg. 4K Random Write Speed 		73.5 MB/s 85.3 MB/s Faster random write.
+16%
Mixed
Avg. Sequential Mixed IO Speed 		240 MB/s 347 MB/s Much faster mixed IO speed.
+45%
4K Mixed
Avg. 4K Random Mixed IO Speed 		31.5 MB/s 48 MB/s Much faster random mixed IO.
+52%
SusWrite
Avg. Sustained Write Speed 		233 MB/s Faster sustained write speed.
+19% 		195 MB/s
Peak Score 
+25%
Read
Peak Sequential Read Speed 		486 MB/s 507 MB/s +4%
Write
Peak Sequential Write Speed 		346 MB/s 489 MB/s Much faster peak write speed.
+41%
4K Read
Peak 4K Random Read Speed 		30 MB/s 46.7 MB/s Much faster peak random read.
+56%
4K Write
Peak 4K Random Write Speed 		111 MB/s 119 MB/s Slightly faster peak random write.
+7%
Mixed
Peak Sequential Mixed IO Speed 		307 MB/s 418 MB/s Much faster peak mixed IO speed.
+36%
4K Mixed
Peak 4K Random Mixed IO Speed 		42.2 MB/s 59.8 MB/s Much faster peak random mixed IO.
+42%
SusWrite
Peak Sequential Sustained Write 60s Average 		342 MB/s Faster peak sustained write speed.
+14% 		299 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 75,658,367 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.11 % Insanely higher market share.
+∞%
Value
Value For Money 		6.11 % 12.9 % Hugely better value.
+111%
User Rating
UBM User Rating 		53 % 53 %
Price
Price (score) 		$203 $95 Much cheaper.
+53%
Nice To Haves 
+20%
Age
Newest 		120 Months Slightly more recent.
+7% 		129 Months
DQ Read
Peak 4K-64Thread Read Speed 		374 MB/s 383 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed 		320 MB/s 362 MB/s Faster peak deep queue write.
+13%
AS-SSD Total
AS-SSD Total Score 		1,152 Pts 1,273 Pts Stronger server IO.
+10%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		211 MB/s 237 MB/s Faster peak deep queue mixed IO.
+12%
ADQ Read
Avg. 4K-64Thread Read Speed 		285 MB/s 337 MB/s Faster deep queue read.
+18%
ADQ Write
Avg. 4K-64Thread Write Speed 		238 MB/s 293 MB/s Faster deep queue write.
+23%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		108 MB/s 203 MB/s Hugely faster deep queue mixed IO.
+88%
Specifications 
Capacity
Capacity 		256GB 250GB
Conclusion 
Average Bench 79%
Average Bench 95.9%
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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 Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]

MORE DETAILS

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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.

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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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair 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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