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WD

WD4000F9YZ-09N20 4TB

▲ 500 ▼

Release date ≈ Q2 2016.

Average Bench: 87.6% (35th of 1015)

Based on 7 user benchmarks.  Model: WD WD4000F9YZ-09N20
Poor: 68%Average: 87.6% Great: 100%

Very good average bench

The WD WD4000F9YZ-09N20 4TB averaged just 12.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the WD WD4000F9YZ-09N20 4TB near the top of the comparison list.

Strengths

Avg. 4K Random Mixed IO Speed 0.56MB/s
Avg. 4K Random Write Speed 2.22MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the WD WD4000F9YZ-09N20 4TB is 32.2%. This is a relatively narrow range which indicates that the WD WD4000F9YZ-09N20 4TB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 115MB/s
Avg. 4K Random Read Speed 0.78MB/s
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Average Bench

(Based on 7 samples)
Rank 3587.6%
Min Avg Max
120 Read 158 192
118 Write 146 167
100 Mixed 115 128
157 SusWrite 162 170
107% 145 MB/s
Min Avg Max
0.008 4K Read 0.78 1
0.26 4K Write 2.22 3.2
0.04 4K Mixed 0.56 1.1
136% 1.19 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
3.5TB free
Firmware: 01.01A02
SusWrite @10s intervals: 167 164 165 156 162 134 MB/s
100% Outstanding
Read 192
Write 160
Mixed 100
SusWrite 158
112% 152 MB/s
4K Read 1
4K Write 3.2
4K Mixed 1.1
223% 1.77 MB/s
3.5TB free
Firmware: 01.0
SusWrite @10s intervals: 168 170 168 171 171 171 MB/s
98% Outstanding
Read 171
Write 167
Mixed 109
SusWrite 170
114% 154 MB/s
4K Read 1
4K Write 3
4K Mixed 1.1
220% 1.7 MB/s
247GB free
Firmware: 01.0
SusWrite @10s intervals: 155 157 157 158 158 160 MB/s
90.7% Outstanding
Read 158
Write 154
Mixed 108
SusWrite 157
106% 145 MB/s
4K Read 1
4K Write 3.1
4K Mixed 1
210% 1.7 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 53,350,148 HDDs tested

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Hard Drive Rankings (Price vs Performance) May 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]

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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.

 Comments

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Speed Comparisons

vs Seagate Barracuda 1TB (2016)
vs WD Blue 1TB (2012)
vs Seagate Barracuda 2TB (2016)
vs Seagate Barracuda 3TB (2016)
vs Seagate Barracuda 7200.14 1TB
vs WD Black 1TB (2013)
vs Seagate Barracuda 4TB (2016)
vs WD Black 2TB (2013)
vs WD Black 6TB (2015)

1015 Drives (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different HDDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 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?
What is 4K random write speed?
What is 4K random read speed?
What is AS SSD real world copy speed?
How big is 16GB?
What does MBps mean?
Hard Drives
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $254Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia 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 $37SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $79G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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