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SanDiskSD6SB1M-256G-1022I
CrucialCT1000BX100SSD1
▲ 507 ▼

Release date ≤ Q2 2014.

VS
▲ 500 ▼

Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC. Release date ≈ Q1 2015.

Effective Speed 
+19%
Real World Speed
Performance profile from 6,356 user samples
Benchmark your SSD here
4,989 User Benchmarks
Best Bench: 100% 238GB free
Worst Bench: 55% 37GB free (System drive)
Poor: 55% Great: 100%
SPEED RANK: 496th / 1071
1,367 User Benchmarks
Best Bench: 108% 501GB free
Worst Bench: 71% 383GB free (System drive)
Poor: 71% Great: 108%
SPEED RANK: 289th / 1071
Effective Speed
Effective SSD Speed 		79.1 % 93.8 % Faster effective speed.
+19%
Average Score 
+25%
Read
Avg. Sequential Read Speed 		426 MB/s 478 MB/s Faster read speed.
+12%
Write
Avg. Sequential Write Speed 		338 MB/s 403 MB/s Faster write speed.
+19%
4K Read
Avg. 4K Random Read Speed 		26 MB/s 26.5 MB/s +2%
4K Write
Avg. 4K Random Write Speed 		67.8 MB/s 80.1 MB/s Faster random write.
+18%
Mixed
Avg. Sequential Mixed IO Speed 		195 MB/s 314 MB/s Much faster mixed IO speed.
+61%
4K Mixed
Avg. 4K Random Mixed IO Speed 		28.1 MB/s 37.5 MB/s Much faster random mixed IO.
+33%
SusWrite
Avg. Sustained Write Speed 		294 MB/s 376 MB/s Faster sustained write speed.
+28%
Peak Score 
+12%
Read
Peak Sequential Read Speed 		481 MB/s 515 MB/s Slightly faster peak read speed.
+7%
Write
Peak Sequential Write Speed 		442 MB/s +1% 438 MB/s
4K Read
Peak 4K Random Read Speed 		31.7 MB/s +5% 30.3 MB/s
4K Write
Peak 4K Random Write Speed 		98 MB/s 108 MB/s Faster peak random write.
+10%
Mixed
Peak Sequential Mixed IO Speed 		237 MB/s 349 MB/s Much faster peak mixed IO speed.
+47%
4K Mixed
Peak 4K Random Mixed IO Speed 		35.5 MB/s 45 MB/s Faster peak random mixed IO.
+27%
SusWrite
Peak Sequential Sustained Write 60s Average 		437 MB/s 439 MB/s +0%
Value & Sentiment 
+45%
Market Share
Based on 75,749,404 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % Hugely higher market share.
+100% 		0.01 %
Value
Value For Money 		10.4 % +1% 10.3 %
User Rating
UBM User Rating 		50 % 50 %
Price
Price (score) 		$100 Hugely cheaper.
+80% 		$500
Nice To Haves 
+25%
Age
Newest 		120+ Months 110+ Months Slightly more recent.
+8%
DQ Read
Peak 4K-64Thread Read Speed 		325 MB/s Faster peak deep queue read.
+18% 		275 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		213 MB/s 302 MB/s Much faster peak deep queue write.
+42%
AS-SSD Total
AS-SSD Total Score 		976 Pts 1,000 Pts +2%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		127 MB/s 209 MB/s Much faster peak deep queue mixed IO.
+65%
ADQ Read
Avg. 4K-64Thread Read Speed 		280 MB/s Faster deep queue read.
+10% 		254 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		184 MB/s 257 MB/s Much faster deep queue write.
+40%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		112 MB/s 191 MB/s Much faster deep queue mixed IO.
+71%
Specifications 
Capacity
Capacity 		256GB 1TB
User Builds 
4,989
1,367
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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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.

UserBenchmark of the month

Gaming Desktop ProGaming

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 $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk 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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