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SanDiskSD6SF1M-256G-1022
SamsungMZ-V9P2T0B(W|/AM)
▲ 501 ▼

Controller: Marvell 9175. Flash Memory: SanDisk 19nm Toggle Mode MLC. Release date ≈ Q2 2014.

VS
▲ 66315 ▼

Release date: Q4 2022.

Effective Speed 
+516%
Real World Speed
Performance profile from 61,658 user samples
Benchmark your SSD here
304 User Benchmarks
Best Bench: 91% 238GB free
Worst Bench: 53% 15GB free (System drive)
Poor: 53% Great: 91%
SPEED RANK: 624th / 1080
61,354 User Benchmarks
Great bench: 587% 2TB free
Poor bench: 286% 2TB free (System drive)
Poor: 286% Great: 587%
SPEED RANK: 11th / 1080
Effective Speed
Effective SSD Speed 		72.9 % 449 % Hugely faster effective speed.
+516%
Average Score 
+628%
Read
Avg. Sequential Read Speed 		411 MB/s 2,469 MB/s Hugely faster read speed.
+501%
Write
Avg. Sequential Write Speed 		329 MB/s 3,845 MB/s Insanely faster write speed.
+1,069%
4K Read
Avg. 4K Random Read Speed 		23.2 MB/s 74.8 MB/s Hugely faster random read.
+222%
4K Write
Avg. 4K Random Write Speed 		59.4 MB/s 192 MB/s Hugely faster random write.
+223%
Mixed
Avg. Sequential Mixed IO Speed 		242 MB/s 2,911 MB/s Insanely faster mixed IO speed.
+1,103%
4K Mixed
Avg. 4K Random Mixed IO Speed 		22 MB/s 103 MB/s Hugely faster random mixed IO.
+368%
SusWrite
Avg. Sustained Write Speed 		292 MB/s 2,955 MB/s Hugely faster sustained write speed.
+912%
Peak Score 
+594%
Read
Peak Sequential Read Speed 		466 MB/s 3,186 MB/s Hugely faster peak read speed.
+584%
Write
Peak Sequential Write Speed 		421 MB/s 4,847 MB/s Insanely faster peak write speed.
+1,051%
4K Read
Peak 4K Random Read Speed 		31.4 MB/s 96.9 MB/s Hugely faster peak random read.
+209%
4K Write
Peak 4K Random Write Speed 		97 MB/s 317 MB/s Hugely faster peak random write.
+227%
Mixed
Peak Sequential Mixed IO Speed 		375 MB/s 3,573 MB/s Hugely faster peak mixed IO speed.
+853%
4K Mixed
Peak 4K Random Mixed IO Speed 		33.4 MB/s 146 MB/s Hugely faster peak random mixed IO.
+337%
SusWrite
Peak Sequential Sustained Write 60s Average 		404 MB/s 4,018 MB/s Hugely faster peak sustained write speed.
+895%
Value & Sentiment 
+∞%
Market Share
Based on 77,612,121 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 1.88 % Insanely higher market share.
+∞%
Value
Value For Money 		7.07 % 198 % Insanely better value.
+2,699%
User Rating
UBM User Rating 		50 % 66 % Much more popular.
+32%
Price
Price (score) 		$150 +4% $156
Nice To Haves 
+781%
Age
Newest 		125+ Months 25 Months Much more recent.
+80%
DQ Read
Peak 4K-64Thread Read Speed 		322 MB/s 2,243 MB/s Hugely faster peak deep queue read.
+597%
DQ Write
Peak 4K-64Thread Write Speed 		211 MB/s 1,782 MB/s Hugely faster peak deep queue write.
+745%
AS-SSD Total
AS-SSD Total Score 		964 Pts 6,703 Pts Hugely stronger server IO.
+596%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		125 MB/s 1,991 MB/s Insanely faster peak deep queue mixed IO.
+1,493%
ADQ Read
Avg. 4K-64Thread Read Speed 		237 MB/s 1,608 MB/s Hugely faster deep queue read.
+578%
ADQ Write
Avg. 4K-64Thread Write Speed 		178 MB/s 1,195 MB/s Hugely faster deep queue write.
+571%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		82.6 MB/s 1,398 MB/s Insanely faster deep queue mixed IO.
+1,592%
Specifications 
Capacity
Capacity 		256GB 2TB
Conclusion 
Average Bench 72.9%
Average Bench 449%

The Samsung 990 Pro has a strong consumer performance profile. It offers burst read speeds of 3 GB/s and burst write speeds of 5 GB/s. The 990 Pro also offers respectable out of cache performance. At current prices (1TB $120 USD, 2TB $165 USD and 4TB $320 USD) the Samsung 990 Pro offers worse value for money than the WD Black SN850X. Samsung’s superior SSD technology allowed them to dominate the consumer market since SSDs became mainstream in 2010. However, in today’s market, their technology no longer justifies a price premium. [Jun '24 SSDrivePro]

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

Welcome to our 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.
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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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 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
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $154Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $320
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