UserBenchmark: WD Black (2013) vs WD6003FZBX-00K5WB0

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WDWD4003FZEX

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Real World Speed

Performance profile from 29,732 user samples

Benchmark your HDD here

9,527 User Benchmarks

Best Bench: 138% 5TB free
Worst Bench: 78% 6GB free

Poor: 78% Great: 138%

SPEED RANK: 1^st / 1015

20,205 User Benchmarks

Best Bench: 98% 3.5TB free
Worst Bench: 58% 3TB free

Poor: 58% Great: 98%

SPEED RANK: 82^nd / 1015


Effective Speed Effective HDD Speed		112 %	Much faster effective speed. +41%		79.5 %


Read Avg. Sequential Read Speed	196 MB/s	Much faster read speed. +38%	142 MB/s
Write Avg. Sequential Write Speed	199 MB/s	Much faster write speed. +51%	132 MB/s
4K Read Avg. 4K Random Read Speed	1.51 MB/s	Much faster random read. +70%	0.89 MB/s
4K Write Avg. 4K Random Write Speed	5.87 MB/s	Hugely faster random write. +98%	2.97 MB/s
Mixed Avg. Sequential Mixed IO Speed	94.3 MB/s	Slightly faster mixed IO speed. +10%	86.1 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	1.68 MB/s	Much faster random mixed IO. +68%	1 MB/s
SusWrite Avg. Sustained Write Speed	193 MB/s	Much faster sustained write speed. +44%	134 MB/s


Read Peak Sequential Read Speed	241 MB/s	Much faster peak read speed. +33%	181 MB/s
Write Peak Sequential Write Speed	245 MB/s	Much faster peak write speed. +50%	163 MB/s
4K Read Peak 4K Random Read Speed	2.16 MB/s	Hugely faster peak random read. +96%	1.1 MB/s
4K Write Peak 4K Random Write Speed	7.8 MB/s	Hugely faster peak random write. +123%	3.5 MB/s
Mixed Peak Sequential Mixed IO Speed	113 MB/s	+4%	109 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	1.92 MB/s	Much faster peak random mixed IO. +75%	1.1 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	243 MB/s	Much faster peak sustained write speed. +46%	166 MB/s

Market Share

Based on 53,304,997 HDDs tested

See market share leaders


Market Share Market Share (trailing 30 days)		0.19 %	Hugely higher market share. +533%		0.03 %
User Rating UBM User Rating		50 %			50 %


Age Newest		73+ Months	Much more recent. +40%		122+ Months


Capacity Capacity			6TB			4TB

It's almost as fast as an SSD ^{[Nov '18 agustin979]}

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Hard Drive Rankings (Price vs Performance) April 2024 HDD Rankings

We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by current cost per GB to yield value for money. 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 HDDs. ^[HDrivePro]

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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- CPU tests include: integer, floating and string
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- Reports are generated and presented on userbenchmark.com
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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?

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Hard Drives

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ALL FAQs »

CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16