WD Black 4TB Hard Drive Review

by Rob Williams on January 2, 2013 in Storage

WD’s Black 4TB is the sort of product that doesn’t need much of an introduction – it speaks for itself. We’re dealing with a standard-sized desktop hard drive that sports a market-leading 4TB of storage. That’s 4,000GB, for those not paying enough attention. It’s impressive on paper, so let’s see how it fares in our benchmarks.

Final Thoughts

Thanks to the rising popularity of SSDs, it’s become a little challenging writing a review for a mechanical drive. However, while HDD performance pales in comparison to an SSD, it still matters. Kind of – allow me to explain.

Years ago, well before SSDs were considered affordable, hard drive performance mattered a lot. It’s what housed our OS and applications, after all, so a drive that proved 10% faster was tough to ignore. Today, though, as many people are using an SSD as their primary (OS) drive, hard drive performance may or may not be truly important. It depends on your needs.

If all you’re using a hard drive for is to store data, performance is clearly not a major issue. If you kick-off a movie on either an SSD or a mechanical drive, for example, the performance won’t seem too different. Where things change is if you skip through the file – faster storage has obvious advantages. That leads me to the main point where hard drive performance can matter. If you work with these stored files a lot, such as for your personal projects (video, audio, images, et cetera), a faster drive is undoubtedly appreciated. SSDs might be affordable for a modest drive, but they’re still outside the realm of possibility when you need to store terabytes of data.

To WD’s favor, that’s what will sell its 4TB Black drive. It’s for those who need both high storage and high performance. I’d still be quicker to recommend WD’s own VelociRaptor for a nice blend of both factors, but it carries a price-premium and maxes out at 1TB – it’s not exactly sharing the same target market as this Black drive.

WD Black 4TB

That all said – does WD’s Black 4TB properly fill its role? Yes and no. As far as 4TB storage is concerned, your options are limited, so if you need that kind of storage now, you’re buying either this drive or HGST’s (a WD company). Currently, the HGST drive retails for $310, while this Black retails for $330. While we haven’t tested the HGST drive, based on specs alone I’d expect both drives to perform similarly.

On the topic of latency, I found that to be an odd point about this drive. Given the beefier platter size, you’d almost expect the 4TB drive to be faster than the 2TB model, but not so. In fact, this Black 4TB even managed to get out-performed by WD’s own Green drive (2TB). That seems a bit silly. Transfer-speed wise, while the 4TB model still doesn’t beat out the 2TB one, its performance is close.

With a drive like this, you have to take the good with the bad. Since WD employed 1TB platters in its Red series drives, I had hoped that we’d see that carried over to this Black drive, but it’s clear that WD hasn’t yet optimized those platters for faster speeds. Had WD been able to put those platters in this drive, we would have seen far-improved performance I’m sure.

When all said and done, WD’s Black is a solid choice for those who need massive storage, but it’s impossible to ignore HGST’s drive which retails for $20 less. It’s expected that Seagate will release its first 4TB drive early this year, so it will be interesting to see how that drive will fare in the performance department.

To wrap this up, I have to say that it’s a little disappointing to see that the price of the HGST 4TB drive went up in price pretty significantly once the Black 4TB model was released. When we first talked about the Black 4TB in November, HGST’s drive retailed for $279.99. Post-release, it jumped to $309.99. Coincidence? I have my doubts. That said, even at $330, the drive offers a good value in comparison to the 2TB model ($0.0825 per GB vs. $0.09 per GB).


  • It’s 4TB!
  • Offers good transfer performance.
  • No price premium vs. Black 2TB: $0.0825 per GB vs. $0.09 per GB (note: Green 2TB = $0.055 per GB).


  • Poor latency performance; out-shined by WD’s Green drives.

  • http://techgage.com/ Brett Thomas

    I’ll still stick to my green 2TBs in my server arrays for now – RAID5 more than offsets the performance concerns. This drive would be a go-to if I needed the storage/space balance in such a large size, but who NEEDS their “working” drive to be 4TB? I’d rather have a 3-tier model for a full desktop – SSD for the OS, Raptor for a working drive, and a large and slow one for long-term storage.

    What are the warranty differences between the top brand WD black and the HGST drive? May account for the $20. WD’s warranty service has always been spectacular, I’m not sure about its subsidiaries.

    • http://www.facebook.com/deathspawner Rob Williams

      The HGST drive carries the same 5-year warranty. I can agree that most people won’t need a 4TB drive, but for those needing to maximize their storage potential, it’s a great option. A four-bay NAS that supports 4TB drives would offer 12TB of storage space – that’s pretty damn attractive. The fact that WD doesn’t really charge a premium for these beefy drives is what can make them a good investment. Though the HGST is an even better value on paper.

      • How_delightful

        I disagree that “Most people won`t need a 4Tb drive” as I have completely filled a 2Tb drive on games alone.
        And I have a 1Tb drive almost full of family photos and vids.
        And I have another 1Tb drive almost full of work documents etc…
        Plus I had to buy a 500Gb SSD as the 250Gb one was almost full.
        And I am just an average PC user & social gamer.

        • http://techgage.com/ Rob Williams

          That comment was made over two-years-ago and took cost into consideration. Of course, nowadays, 4TB is an excellent option. I’ll soon be building a NAS with 6TB drives, so believe me, I know where you’re coming from.

  • Danny Young Lim

    Western Digital Velociraptor 1TB has the lowest Access Time, compared to WD Black 2TB and 4TB model. Access Time is very important when it comes to loading data, saving information, for small files and big sequential files. Hence, WD Velociraptor 1TB is worth it to invest for better performance, better response time, as well as better power efficiency due to 2.5 Platter Density form factor.

  • Friday Wedding Photography

    I’m a huge fan of 4tb 7200rpm hard drives because I run them in my Drobo 5d and Drobo 5n and when you spend $600+ for your “enclosure”, and you lose 2 drives worth of space for “redundancy / protection”, your cost per tb of usable space is rather important.

    Example: You load your 5 bay with 3tb drives. 3×5=15tb of total space but drive 1&2 get substracted for your raid copy using Drobo’s software. Now you’re left with 3x3tb=9tb for usable space. Compare that with 5×4=20tb and 3x4tb=12tb of usable space.

    9tb of protected data = $150×5 (750) + $650(drobo) = $1400/9= $155 per tb of protected data (ouch!)
    12tb of protected data = $190 (950) + $650(drobo) = $1600/12= $133 per tb of protected data (14% increase in price for a 33% increase in usable storage space).

    The numbers get even better once they introduce the 5tb drives. Now, do you need that much storage space? Most people no. But if you do video production and produce a large amount of data from commercials or wedding videography projects, then you probably buy hard drives like they’re candy. Trying to manage that much data becomes a huge headache that can keep you up at night wondering “what happens if…” and “has my backup software been running?”

    I run a Minneapolis based video production company.

  • How_delightful

    I remember the first PC I bought. It had the latest whopping “Impossible to fill” 1Gb Hard-drive. That was back in 1995?
    This is gonna be easy to fill within a year or so. And its 4,000 times bigger.

    • http://techgage.com/ Rob Williams

      I remember when I first got a 500MB hard drive; I was so impressed knowing that I could install Duke Nukem 3D to it like 15 times.