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WD6402AAEX-00Z3A0 640GB

WD6402AAEX-00Z3A0 640GB
BENCHMARKS (6,247)
MKT (0%)
BUILDS
(0)

Effective Speed -53%Effective Speed -53%Average Score -16%Read -48%, Write -42%, 4K Read 26%, 4K Write 7%, Mixed 4%, 4K Mixed 3%, SusWrite -59%Peak Score -10%Read -42%, Write -42%, 4K Read 35%, 4K Write 9%, Mixed 20%, 4K Mixed 0%, SusWrite -51%Value & Sentiment User Rating -19%, Market Share -∞%Nice To Haves -5%Age -5%

Barracuda 7200.14 1TB

Black 1TB (2013)

Black 2TB (2013)

Barracuda 4TB (2016)

Barracuda 7200.14 3TB

Average Bench: 57.3% (216^th of 1015)

Based on 6,247 user benchmarks. Models: WDC WD6402AAEX-00Z3A0, WDC WD6402AAEX-00Z3A, WDC WD64 02AAEX-00Y9A, WDC WD6402AAEX-0, WDC WD64 02AAEX-00Z3A0, WDC WD6402AAEX-00Y9A, WDC WD64 02AAEX-00Y9A0, WDC WD64 02AAEX-00Z3A, WDC WD6402AAEX-00Y9A0

Poor: 34%Average: 57.3% Great: 76%

Popular builds with this HDD

Average average bench

The WD WD6402AAEX-00Z3A0 640GB averaged 42.6% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K Random Mixed IO Speed 0.86MB/s

Avg. 4K Random Read Speed 1.08MB/s

See where your HDD ranks →

Average consistency

The range of scores (95th - 5th percentile) for the WD WD6402AAEX-00Z3A0 640GB is 41.9%. This is a relatively wide range which indicates that the WD WD6402AAEX-00Z3A0 640GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 94.8MB/s

Avg. Sequential Write Speed 95.9MB/s

Average Bench

(Based on 6,247 samples)

Rank 21657.3%

Min	Avg	Max
59.8	Read 105	140
47.7	Write 95.9	127
45.5	Mixed 82.4	112
44.6	SusWrite 94.8	129
69.9% 94.4 MB/s

Min	Avg	Max
0.7	4K Read 1.08	1.4
1.2	4K Write 2.12	2.7
0.6	4K Mixed 0.86	1
180% 1.35 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest HDD (mainstream) averages a speed of 100%

USA-User, 18 days ago.

271GB free

Firmware: 01.01V01

SusWrite @10s intervals: 132 134 132 132 133 129 MB/s

77.4% Very good

Write 131

Mixed 118

SusWrite 132

96% 130 MB/s

4K Read 1.5

4K Write 2.5

4K Mixed 0.9

209% 1.63 MB/s

SVK-User, 5 days ago.

464GB free

Firmware: 05.01D05

SusWrite @10s intervals: 118 118 119 121 120 120 MB/s

68.5% Good

Write 119

Mixed 102

SusWrite 119

85% 115 MB/s

4K Read 1.3

4K Write 2.4

4K Mixed 0.9

199% 1.53 MB/s

DZA-User, 2 days ago.

297GB free

Firmware: 05.01D05

SusWrite @10s intervals: 111 109 110 109 108 107 MB/s

66.6% Good

Write 116

Mixed 106

SusWrite 109

84% 113 MB/s

4K Read 1.1

4K Write 2.8

4K Mixed 0.9

198% 1.6 MB/s

GBR-User, 17 days ago.

129GB free

Firmware: 05.01D05

SusWrite @10s intervals: 99 99 100 98 99 97 MB/s

59.5% Above average

Write 96.5

Mixed 81.6

SusWrite 98.6

71% 96.2 MB/s

4K Read 1.3

4K Write 2.1

4K Mixed 1

204% 1.47 MB/s

CAN-User, 11 days ago.

125GB free

Firmware: 05.01D05

SusWrite @10s intervals: 64 62 58 62 66 71 MB/s

41.7% Average

Write 81.3

Mixed 83.3

SusWrite 63.8

58% 77.3 MB/s

4K Read 1.3

4K Write 1.7

4K Mixed 0.8

174% 1.27 MB/s

6,247 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 53,937,808 HDDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU

GPU

SSD

HDD

RAM

MBD

Typical WD6402AAEX-00Z3A0 640GB Builds (Compare 25,020 builds) See popular component choices, score breakdowns and rankings

Gaming 2%

Tree trunk

Desktop 61%

Destroyer

Workstation 2%

Tree trunk

Disqualified System: bin bin

CPU
Core i7-3770Intel $297Bench 69%, 278,207 samples	2,099x
Core i7-2600Intel $173Bench 67%, 185,630 samples	1,629x
Core i5-3470Intel $69Bench 63%, 223,595 samples	966x

GPU
HD 2000 (Desktop 1.1 GHz)IntelBench 1%, 150,891 samples	1,322x
SVGA 3DVmwareBench 20%, 11,474 samples	1,159x
GTX 1050-TiNvidia $59Bench 29%, 946,701 samples	1,093x

SSD
A400 240GBKingston $25Bench 66%, 424,288 samples	850x
Virtual NVMe Disk 64GBVmwareBench 62%, 2,103 samples	460x
A400 480GBKingston $35Bench 74%, 237,487 samples	441x

RAM
2x2GBUnknownBench 20%, 446,702 samples	526x
4x2GBUnknownBench 25%, 183,252 samples	384x
1x8GBUnknownBench 38%, 168,538 samples	307x

EDIT WITH CUSTOM PC BUILDER

Value: 64% - Good

Total price: $322

Popular WD6402AAEX-00Z3A0 640GB systems:

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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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

Hard Drive Rankings (Price vs Performance) November 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.

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?

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ALL FAQs »

CPU	GPU	SSD
Intel Core i5-12600K $159	Nvidia RTX 4060 $280	WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210	Nvidia RTX 4060-Ti $389	WD Black SN850X M.2 1TB $84
Intel Core i5-12400F $111	Nvidia RTX 4070 $500	Crucial T700 M.2 4TB $370

WD

WD6402AAEX-00Z3A0 640GB