Best Computer Monitors - Introduction

When shopping for a monitor, enthusiasts have a dizzying array of choices. Once you’ve settled on a size and resolution, there are still the matters of refresh rate, ergonomics, color accuracy, brightness and connectivity. We test all of these variables in our display reviews so that you can determine the right screen for your unique needs.

Price versus performance is certainly key in any display purchase decision. But it’s also important to pick the right tool for the task. To that end, we’ve broken up our monthly round-up into display categories rather than price range. Our editors don't believe it makes sense to base buying decisions solely on cost. You may find you need a factory calibration or extra-fast refresh rate. To get those features, you’ll have to spend some extra coin. You may decide you don’t need a wide gamut or 32-inch panel. Then you can look to the cheaper categories.

How We Test Monitors

To better understand our testing methods and parameters, please read Display Testing Explained: How We Test Monitors And TVs. We've also published several articles on display calibration procedures and imaging science:

MORE: How To Calibrate Your HDTV
MORE: Display Calibration 101: Step-By-Step With Datacolor's Sypder4Elite

MORE: Do It Like Tom's: Calibrating Your Monitor With Calman RGB

MORE: Display Calibration 201: The Science Behind Tuning Your Monitor

If you're new to our display coverage, these articles will tell you how we test and how the results impact image quality.

June 2015 Updates

To keep our monitor coverage as relevant as possible, we’re currently concentrating on three major areas – gaming, Ultra HD and curved screens. The gaming category is now a hot topic of discussion thanks to the introduction of AMD’s FreeSync technology. We’ve published our review of the BenQ XL2730Z and you will soon see the Acer XG270HU tested here. Despite much debate about the merits of G-Sync versus FreeSync and some perceived flaws in both technologies, our experience so far has been positive.

Our only complaint is the fact that fast gaming displays still rely on TN panels to achieve their 144Hz refresh rates. Acer and LG however are trying to bring IPS to the mix with the XB270HU and 34UM67 respectively.

Acer’s XB270HU holds tremendous promise with not only an IPS panel but a 144Hz refresh rate which is a first. It uses G-Sync to match frame rates and also incorporates blur-reduction, another first in the IPS world. Our sample should be arriving in the lab soon and we’ll have a full report when it does.

LG has chosen to go with FreeSync for its first frame rate matching offering with the 21:9-aspect 34UM67. It’s also an IPS panel but with a maximum refresh rate of 75Hz. That’s another sample that is currently on its way to us and we’ll have that review finished shortly as well.

We’re exploring a new category in Ultra HD monitors this month starting with our upcoming review of ViewSonic’s VP2780-4K. This display brings 3840x2160 resolution to the 27-inch size which results in a pixel density of 163ppi. This particular screen also sports a factory calibration that has proved to be very accurate making it an excellent value for graphics professionals at just over $800.

Speaking of pro screens, we’ve added NEC’s Ultra HD flagship PA322UHD to our recommended list. This 32-inch display is only the second of its category to offer a wide gamut option. Previously your choices were to go with the Dell UP3214Q or a 24-inch UHD monitor. The new NEC is expensive at around $3000 but it provides near-perfect color accuracy and excellent contrast.

We’re still getting a trickle of new curved screens in for testing as well. Sitting on our test bench now is Dell’s U3415W. With 3440x1440 resolution, it offers the same 109ppi pixel density as a 27-inch QHD display with bonus width. And the curve does offer a slightly more immersive quality just like we saw in our review of LG’s 34UC97. The curve and the extra pixels will still cost you around $1000. Hopefully it will catch on and bring prices down.

It seems there is a lot to watch for in the coming months. We’ll continue to explore the G-Sync versus FreeSync debate as we get more monitors to test. And inevitably there will be driver updates to add improvements to the user experience. For now FreeSync is first-generation tech and while it’s perfectly usable in our opinion, it’s logical to assume it will be better down the road.

As always, thanks for reading and stay tuned for the latest here in these pages!

Gaming

Now that we’ve seen monitors hit 120 and 144Hz, it seems like a run-of-the-mill 60Hz screen just won’t cut it attached to a high-end graphics card. With the advent of G-Sync and the imminent appearance of Adaptive-Sync, we think gamers will flock to these new technologies. We're also seeing the addition of backlight strobes to some models in order to reduce motion blur.

  • Out-of-box color and grayscale errors of less than four Delta E
  • Color and grayscale can be calibrated to errors of less than three Delta E
  • Gamma tracking should be close to 2.2
  • Maximum refresh should be at least 96Hz
  • Screen draw time of under 10 milliseconds
  • Total input lag of less than 40 milliseconds
  • Motion blur reduction

MORE: All Monitor Articles
MORE: Latest Monitor News
MORE: Displays in the Forums

Business

These screens are designed to be work-all-day tools suitable for a wide variety of productivity applications. Some may have wide gamuts, but only sRGB is necessary in this category. Measuring 27 inches and up, QHD resolution has become the new standard. FHD is still acceptable at 24 inches and below. We’re also looking for high contrast and, of course, accuracy.

  • Out-of-box color and grayscale errors of less than four Delta E
  • Color and grayscale can be calibrated to errors of less than three Delta E
  • Gamma tracking should be close to 2.2
  • Contrast ratio of over 1000 to 1
  • Screen uniformity should be less than 10 percent for both white and black fields

MORE: All Monitor Articles
MORE: Latest Monitor News
MORE: Displays in the Forums

Professional

For a monitor to earn the professional classification, it must deliver perfectly accurate color, grayscale and gamma.

  • No measured color or grayscale error should be over three Delta E
  • Gamma should track either 2.2 or BT.1886
  • Screen uniformity should be less than 10 percent for both white and black fields
  • Color uniformity should measure less than three Delta E
  • Both sRGB and Adobe RGB gamuts should be supported

MORE: All Monitor Articles
MORE: Latest Monitor News
MORE: Displays in the Forums

Ultra HD

Ultra HD monitors differ from their lower-resolution counterparts in only one area – pixel count. Our standards for color accuracy, contrast, brightness and speed are the same as those for business-class displays.

  • Out-of-box color and grayscale errors of less than four Delta E
  • Color and grayscale can be calibrated to errors of less than three Delta E
  • Gamma tracking should be close to 2.2
  • Contrast ratio of over 1000 to 1
  • Screen uniformity should be less than 10 percent for both white and black fields

MORE: All Monitor Articles
MORE: Latest Monitor News
MORE: Displays in the Forums

Ultra-Wide

In our first Ultra-Wide monitor review, we said that the 21:9 aspect ratio was an answer to a question no one was asking. Since then, larger, higher-res and even curved screens have started to appear. Thus, we felt it relevant to select the better examples for coverage on Tom's Hardware.

Our testing standards are the same as for business-class monitors.

  • Out-of-box color and grayscale errors of less than four Delta E
  • Color and grayscale can be calibrated to errors of less than three Delta E
  • Gamma tracking should be close to 2.2
  • Contrast ratio of over 1000 to 1
  • Screen uniformity should be less than 10 percent for both white and black fields

MORE: All Monitor Articles
MORE: Latest Monitor News
MORE: Displays in the Forums

Jumbo

There’s nothing quite like having a giant monitor on your desktop. Many users prefer this to multiple displays. Once the resolution passes QHD, the available screen real estate means you can have many windows open simultaneously, streamlining personal productivity. Panels this big are rare and expensive, but with 27 inches becoming the new standard, we foresee more 30-inch and larger monitors in the future.

  • All parameters from the Business-class category plus:
  • Screen size of at least 30 inches diagonal

Stay tuned as we bring continuing coverage of all the latest display technologies with our hands-on reviews and up-to-date news of products in development.

MORE: Latest Monitor News
MORE: Displays in the Forums

Christian Eberle is a Contributing Editor for Tom's Hardware, covering Monitors and TVs.

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