UserBenchmark: WD Black (2016) vs Red Pro (2014)

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WDWD4001FFSX

BUY • $229

WDWD6002FZWX

BUY • $235

BenchYourHDD

Real World Speed

Performance profile from 7,122 user samples

Benchmark your HDD here

679 User Benchmarks

Best Bench: 101% 3.5TB free
Worst Bench: 59% 3.5TB free

Poor: 59% Great: 101%

SPEED RANK: 55^th / 1015

6,443 User Benchmarks

Best Bench: 121% 5.5TB free
Worst Bench: 64% 2.5TB free

Poor: 64% Great: 121%

SPEED RANK: 6^th / 1015


Effective Speed Effective HDD Speed		84.1 %			97.8 %	Faster effective speed. +16%


Read Avg. Sequential Read Speed	152 MB/s		169 MB/s	Faster read speed. +11%
Write Avg. Sequential Write Speed	140 MB/s		173 MB/s	Faster write speed. +24%
4K Read Avg. 4K Random Read Speed	0.87 MB/s		0.97 MB/s	Faster random read. +11%
4K Write Avg. 4K Random Write Speed	3.06 MB/s		4.82 MB/s	Much faster random write. +58%
Mixed Avg. Sequential Mixed IO Speed	93.4 MB/s	Faster mixed IO speed. +25%	74.7 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	1.02 MB/s	Much faster random mixed IO. +46%	0.7 MB/s
SusWrite Avg. Sustained Write Speed	141 MB/s		171 MB/s	Faster sustained write speed. +21%


Read Peak Sequential Read Speed	184 MB/s		212 MB/s	Faster peak read speed. +15%
Write Peak Sequential Write Speed	166 MB/s		214 MB/s	Faster peak write speed. +29%
4K Read Peak 4K Random Read Speed	1.1 MB/s		1.1 MB/s
4K Write Peak 4K Random Write Speed	3.6 MB/s		6.3 MB/s	Much faster peak random write. +75%
Mixed Peak Sequential Mixed IO Speed	114 MB/s	Faster peak mixed IO speed. +30%	87.8 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	1.2 MB/s	Much faster peak random mixed IO. +33%	0.9 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	171 MB/s		214 MB/s	Faster peak sustained write speed. +25%

Market Share

Based on 53,307,221 HDDs tested

See market share leaders


Market Share Market Share (trailing 30 days)	0.01 %		0.01 %
Value Value For Money	29.4 %		49.9 %	Much better value. +70%
User Rating UBM User Rating	53 %	+2%	52 %
Price Price (score)	$229	+3%	$235


Age Newest		117 Months			88 Months	More recent. +25%


Capacity Capacity			4TB			6TB

The new 4TB WD Red Pro is an upgraded version of WD's popular Red NAS (Network Attached Storage). The Pro Reds have a rotation speed of 7200 RPM unlike their regular Red counterparts which are marketed as "IntelliPower" but actually spin at fixed speeds of 5400 or 5700 RPM depending on the exact model. Comparing the regular 3TB Red and the 4TB Pro shows that the pro version is significantly faster across the board. The biggest performance gains are seen in the small file 4K area and are a direct consequence of lower access times due to the higher rotation speed of the Pro Red. As well as offering better performance the Pro Reds have 5 year warranties vs 3 years on the regular Reds. Unfortunately it's not all good news as the Pro Red is priced around 50% higher than its regular Red sibling and thus currently represents average value for money at best. ^{[Oct '14 HDrivePro]}

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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.

How Fast Is Your HDD? (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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Frequently Asked Questions

Storage Devices FAQ

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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 $46

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