Real World Speed
Performance profile from 56,306 user samples
54,439 User Benchmarks
Best Bench: 105% 851GB free
Worst Bench: 61% 692GB free
Poor: 61% Great: 105%
SPEED RANK: 48th / 995
1,867 User Benchmarks
Best Bench: 94% 3TB free
Worst Bench: 52% 3.5TB free
Poor: 52% Great: 94%
SPEED RANK: 102nd / 995
Effective Speed
Effective HDD Speed
86.1 % Slightly faster effective speed.
75.5 %
Avg. Sequential Read Speed
156 MB/s Faster read speed.
134 MB/s
Avg. Sequential Write Speed
144 MB/s Slightly faster write speed.
129 MB/s
4K Read
Avg. 4K Random Read Speed
0.9 MB/s Slightly faster random read.
0.84 MB/s
4K Write
Avg. 4K Random Write Speed
2.22 MB/s Faster random write.
1.84 MB/s
Avg. Sequential Mixed IO Speed
135 MB/s Slightly faster mixed IO speed.
120 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
0.28 MB/s Much faster random mixed IO.
0.21 MB/s
Peak Sequential Read Speed
199 MB/s Faster peak read speed.
169 MB/s
Peak Sequential Write Speed
180 MB/s Slightly faster peak write speed.
160 MB/s
4K Read
Peak 4K Random Read Speed
1.32 MB/s Slightly faster peak random read.
1.15 MB/s
4K Write
Peak 4K Random Write Speed
2.74 MB/s Faster peak random write.
2.22 MB/s
Peak Sequential Mixed IO Speed
165 MB/s +3% 160 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
0.37 MB/s Much faster peak random mixed IO.
0.24 MB/s
Market Share
Based on 8,299,772 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.96 % Insanely higher market share.
0.03 %
Value For Money
35.3 % 65.3 % Hugely better value.
User Rating
UBM User Rating
71 % More popular.
60 %
Price (score)
$70 Much cheaper.
53 Months 51 Months +4%

This is the most recent version (2013 FZEX) of Western Digital's best performing consumer storage drive, its predecessor was the WD1002FAEX which is now four years old. With average sequential read/write speeds of 150 MB/s this version outperforms its predecessor by a whopping 50%. Small file random 4K speeds have remained broadly unchanged with average read/write rates of 0.9/2.19 MB/s. Overall the 2013 WD Black has a very good performance profile and it also represents reasonable value for money, at least in the 1TB category. There are some good alternatives to the 2013 Black including the 2012 Blue. Looking at the 2013 Black vs 2012 Blue shows that both drives have similar performance. Power consumption (6.8/6.1 Watts active/idle) and noise levels (29.5 dBA) are also identical making it a tough call between the two. There is however, as always, better value amongst the larger capacities. [Feb '14 HDrivePro]


The HGST Deskstar NAS is one of the few NAS drives to feature a 7,200 RPM rotational speed. This relatively high rotational speed helps the 4TB Deskstar NAS achieve a 4k read/write speed of 1.14/2.2 MB/s. 1.14 MB/s is actually the highest 4K read speed I have seen to date on a 4TB drive. In terms of sequential read/write speeds the Deskstar NAS clocked in at 161/144 MB/s which are also a reasonable set of scores. Overall the Deskstar NAS scored an effective speed of 116 MB/s which despite being 14% below the group leaders, is still second place for a 4TB capacity drive. With 4TB of capacity and an above average performance profile the HGST Deskstar NAS represents very good value for money. [Mar '14 HDrivePro]


Hard Drive Rankings (Price vs Performance) March 2018 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.
  • Fastest effective speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
How Fast Is Your HDD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $146
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback