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Best 4K Gaming Monitors for PC 2021: 144Hz, Curved and More

Best 4K Gaming Monitors
The best 4K gaming monitors, based on our own benchmarks (Image credit: Shutterstock / Krivosheev Vitaly)

With great pixels comes great image quality. So it's not surprising when PC gamers drool over monitors with 4K resolution. A panel packing 8.3 million pixels (3840 x 2160) makes your favorite games look incredibly sharp and realistic. In addition to being the highest resolution you can get in a good gaming monitor these days, going 4K also offers the ability to expand past 20-inch screens. With that loaded pixel army, you can stretch your screen size well past 30 inches without having pixels so big that you can see them. And the new graphics cards from Nvidia's RTX 30-series and AMD's Radeon RX 6000-series make the move to 4K even more tempting.  

But that image quality comes at a steep price. Anyone who's shopped for a 4K monitor before knows they're not cheap. Yes, 4K is about high-res gaming, but you're still going to want solid gaming specs, like a 60Hz-plus refresh rate, low response time and your choice of Adaptive-Sync (Nvidia G-Sync or AMD FreeSync, depending on your system's graphics card). And you can't forget the cost of the decently beefy graphics card you'll require to game properly in 4K. 

If you're committed to low prices, check out the Best Budget 4K Monitors page. If you're not 4K-ready yet, check out lower-resolution recommendations on our Best Gaming Monitors or Best Computer Monitors pages. 

If you’re ready for high-res gaming (lucky you), below are the best 4K gaming monitors of 2021, based on our own testing.

Quick Shopping Tips

When seeking the best 4K gaming monitor for you, consider the following:

  • G-Sync or FreeSync? A monitor’s G-Sync feature will only work with PCs using an Nvidia graphics card, and FreeSync will only run with PCs carrying an AMD card. You can technically run G-Sync on a monitor that's only FreeSync-certified, but performance may vary. We've seen negligible differences in mainstream gaming capabilities for fighting screen tearing between the two. Our Nvidia G-Sync vs. AMD FreeSync article offers an in-depth performance comparison. 
  • 4K and HDR go hand-in-hand. 4K displays often support HDR content for extra bright and colorful images. But for Adaptive-Sync optimized for HDR media, you'll want a G-Sync Ultimate or FreeSync Premium Pro (formerly FreeSync 2 HDR) monitor. For a noticeable upgrade from an SDR monitor, opt for at least 600 nits brightness. You can learn more from our glossary page on HDR and our buying guide for picking the best HDR monitor.

For more guidance picking a monitor of any resolution--gaming or otherwise--check out our PC Monitor Buying Guide and list of the Best Computer Monitors

The Best 4K Gaming Monitors You Can Buy Today

With accuracy, a lot of color and speed, the LG 27GN950-B is the best 4K gaming monitor.  (Image credit: LG)

1. LG 27GN950-B

Best 4K Gaming Monitor

Screen Size & Aspect Ratio: 27 inches,16:9 | Panel Type: IPS | Refresh Rate: 144 Hz | Response Time (GTG): 1ms | Adaptive-Sync: G-Sync Compatible, FreeSync

Local dimming produces VA-like contrast
Wide and accurate color gamut
Fast and responsive
Oversaturated sRGB mode

With speed, accurate color and high contrast, the LG 27GN950-B is the best 4K gaming monitor and our top recommendation. There’s tough competition on this page, but the 27GN950-B stands out with some of the best input lag scores we’ve seen of a 144Hz monitor (tying with the Asus ROG Strix XG27UQ below) while also keeping up with its rivals in our response time testing.

Image quality is also a sight to hold. With an edge array backlight with a local dimming feature, the 27GN950-B doesn’t quite hit FALD-level HDR but still brought stellar performance with 8,475.3:1 contrast ratio. LG also implemented its Nano IPS panel, the answer to Samsung’s Quantum Dot tech, to achieve massive color coverage (94.5% of DCI-P3 and 133.9% of sRGB after our recommended calibration) that really made games pop.

Read: LG 27GN950-B review

You'll be hard-pressed to find a speedier 4K monitor than the Asus ROG Strix XG27UQ. (Image credit: Asus)

2. Asus ROG Strix XG27UQ

Best 144Hz 4K Gaming Monitor

Screen Size & Aspect Ratio: 27 inches, 16:9 | Panel Type: IPS | Refresh Rate: 144Hz | Response Time (GTG): 1ms | Adaptive-Sync: FreeSync

Quickest 4K monitor we’ve tested
Richly saturated color
Expensive compared to other 144Hz 27-inchers

The Asus ROG Strix XG27UQ is the best 144Hz 4K gaming monitor and may be cheaper than you expect. We've seen it listed for $800, but as of writing we're seeing it for $884. It doesn’t have a premium FALD backlight for beautiful HDR; however, HDR performance is still impressive, with thanks due to an effective edge-array backlight and the monitor's Dynamic Dimming feature.

The ROG Strix XG27UQ stacked up well in our testing when it came to both response time and input lag. In the input lag test, it outperformed other 144Hz monitors, including the Acer Predator X27 and Asus ROG Swift PG27UQ, which went for about $2,000 each. And while the XG27UQ is listed as a FreeSync monitor, we were able to run G-Sync on it successfully. 

Read: Asus ROG Strix XG27UQ review  

The Acer Predator offers high-end performance at a more balanced price.  (Image credit: Acer)

3. Acer Predator XB273K

Best 144Hz 4K Gaming Monitor Value

Screen Size & Aspect Ratio: 27 inches, 16:9 | Panel Type: IPS | Refresh Rate: 144Hz | Response Time (GTG): 4ms | Adaptive-Sync: G-Sync

Superb gaming performance
Out-of-box color accuracy
HDR
DCI-P3 color
Expensive

A little more affordable than the other 144Hz options on this page, the Acer Predator XB273K is the best 4K gaming monitor at that ideal refresh rate for value-seekers.  During fast-paced games with settings maxed, there was no blur. G-Sync worked successfully--with both standard and HDR content-- to fight screen tearing when paired with an Nvidia graphics card. The monitor kept up well with other 144Hz displays during our testing and even beat the Asus ROG Swift PG27UQ and Acer Predator X27, which are about $2,000 monitors, when it came to input lag. 

In terms of image quality, the Predator XB273K delivers with pro-level color accuracy and contrast that reached over 4,000:1, according to our testing, and over 2,000:1 after our calibration. HDR doesn't look as good as it does on monitors with FALD backlights, but we consider the Predator XB273K the next best thing. 

Read: Acer Predator XB273K review

A good 4K gaming monitor doesn't have to cost a fortune anymore.  (Image credit: Asus)

4. Asus TUF Gaming VG289Q

Best Budget 4K Gaming Monitor

Screen Size & Aspect Ratio: 28 inches, 16:9 | Panel Type: IPS | Refresh Rate: 60 Hz | Response Time (GTG): 5ms | Adaptive-Sync: FreeSync

Good value
Accurate color
Good build quality
Average contrast
HDR looks only slightly better than SDR

You don’t often see the word budget associated with a 4K monitor, but the Asus TUF Gaming VG289Q isn’t just affordable, it’s a great gaming monitor too. Despite being available for $349 as of writing, it offers a great amount of performance, making it a fantastic value for gamers looking to get to 4K without breaking the bank. We've even seen 4K monitors at the $400 mark offer lesser gaming performance. 

There was no ghosting when we gamed on the VG289Q, and overdrive successfully helped eliminate motion blur. SDR titles looked extra colorful, but there was hardly any improvement when moving over to HDR games. 

With the VG289Q priced so low, it’s not surprising that its refresh rate is limited to just 60 Hz (FreeSync works down to 48 Hz). Hardcore gamers will want more Hz, but casual players can make due with fast-paced scenes showing sufficient detail and great pixel density. 

For more low-priced 4K screens, check out Best Budget 4K Monitors list. 

Read: Asus TUF Gaming VG289Q review

The Acer ConceptD CP7271K is the best 4K monitor for creatives who also want to game.  (Image credit: Acer)

5. Acer ConceptD CP7271K

Best 4K Gaming Monitor for Professionals

Screen Size & Aspect Ratio: 27 inches, 16:9 | Panel Type: IPS | Refresh Rate: 144Hz with overclock | Response Time (GTG): 4ms | Adaptive-Sync: G-Sync Ultimate

Reference-level color accuracy
Huge color gamut
Tremendous contrast
HDR with FALD backlight at 1,000 nits brightness and G-Sync Ultimate
No portrait mode
No selectable color gamuts

The lines separating the monitor needs of gamers and professionals keeps blurring. Besides that, there’s nothing wrong with a photo editor wanting to game during their free time, right? The Acer ConceptD CP271K is the best 4K gaming monitor for professionals because it boasts impressive gaming specs coupled with accurate color space coverage. 

Creative professionals can get work done with the monitor’s 110% coverage of the DCI-P3 color space, although the very meticulous will find that to be slightly too colorful. You can, however, reduce color with a software look-up table. You also get great HDR output with a FALD backlight that reaches 1,000 nits. 

At the same time, the ConceptD CP271K offers gamers accurate sRGB coverage (96.3%), as well as powerful performance that kept up with 144 Hz gaming monitors in our response time and input lag benchmarking. 

Read: Acer ConceptD CP7271K review 

The Asus ROG Swift PG43UQ hits 144Hz at 4K with a bright panel.  (Image credit: Asus)

6. Asus ROG Swift PG43UQ

Best Big-Screen 4K Gaming Monitor

Screen Size & Aspect Ratio: 43 inches, 16:9 | Panel Type: VA | Refresh Rate: 144Hz | Response Time (GTG): 1ms | Adaptive-Sync: FreeSync, G-Sync Compatible

99% DCI-P3 color coverage
Killer HDR
Handy remote
Hard to find
Too bright for darkly lit rooms
No 24p film mode for Blu-ray movies

We loved the Asus ROG Swift PG43UQ when we first saw it in June, but it’s been hard to find online ever since. We reviewed it at $1,500 but have seen it sell for more. If you can find this massive screen at the right price, you won’t be disappointed. 

At 43 inches, the ROG Swift PG43UQ is juggernaut that makes for a great TV replacement -- it even has a remote. From a 4-foot distance, it lends to a highly immersive experience that rivals a curved ultra-wide. And with DisplayHDR 1000 certification, HDR movies pack a punch. Games looked incredibly realistic and warm in HDR and also natural and vibrant in SDR. 

Most importantly, the PG43UQ is specced for high-performance gaming. Response time competed well against other 144 Hz screens in our benchmarks, and input lag was better than the equally priced Acer Predator CG437K. If you can't find the Asus in stock though, the Acer's a fine substitution with a drop less performance at around $1,500

Read: Asus ROG Swift PG43UQ review 

OLED makes the Alienware AW5520QF the best 4K gaming monitor for splurging.  (Image credit: Dell)

7. Alienware AW5520QF

Best 120Hz 4K Gaming Monitor

Screen Size & Aspect Ratio: 55 inches, 16:9 | Panel Type: OLED | Refresh Rate: 120Hz | Response Time (GTG): 0.5ms | Adaptive-Sync: FreeSync

Unmatched contrast, color and image quality
Phenomenal game performance
No sRGB color option
No FreeSync 2 HDR
Audio could be better
Not very bright

With a massive 55-inch panel and OLED technology that provides the deepest blacks around and amazing contrast, the Alienware AW5520QF is the best 120Hz 4K gaming monitor, offering a more manageable refresh rate for your GPU than the 144Hz options here, while also being the best 4K gaming monitor you can nab for HDR. 

This screen is a great fit for the living room. The first real OLED gaming monitor, it delivered the best image quality we had ever seen at the time,  including immeasurable blacks and, therefore, theoretically unlimited HDR and SDR contrast. 

But the Alienware OLED still isn’t perfect. Max brightness with regular SDR content is just 130 nits, while HDR only bumps it up to 400 nits. That means its potential is best realized in a darker room. But keep in mind that with its large size, 150 nits with SDR would've been acceptable, so the monitor is only a little bit  short. But the AW5520QF's also expensive--even by OLED TV standards. And for better audio, consider the HP Omen X 65 Emperium below. 

If you're looking for the best 4K gaming monitor for the PS5 and Xbox Series X, opt for something with HDMI 2.1, like the Gigabyte Aorus FV43U. With the AW5520QF's HDMI 2.0 port, you'll be limited to 60Hz. 

Read: Alienware AW5520QF review

The HP Omen X 65 Emperium is worthy of replacing your living room TV.  (Image credit: Amazon)

8. HP Omen X 65 Emperium

Best 4K Monitor for Couch Gaming

Screen Size & Aspect Ratio: 64.5 inches, 16:9 | Panel Type: VA | Refresh Rate: 144Hz | Response Time (GTG): 4ms | Adaptive-Sync: G-Sync

Pro-level color accuracy
Excellent SDR and HDR contrast
Built-in soundbar delivers excellent audio quality
Sturdy build
Very expensive

If you’re a couch gamer, you need a monitor that’s fit for replacing your TV. With a 64.5-inch display, the HP Omen X 65 Emerpium is amply equipped to do just that. This juggernaut of a gaming monitor offers larger-than-life gaming. In testing, performance matched its high price tag with zero gaming hiccups and high frame rates at high settings. 

HP also included some unique bonuses that make this monitor even more fitting for the living room. An included soundbar featuring four 4-inch woofers, two 1-inch tweeters and two passive radiators add to the feeling of immersion. The monitor also comes with Nvidia Shield Android-based streaming interface, which means gaming, TV and movie-streaming options are built right into your gaming display. A remote completes the living room package. 

And if you’re into HDR, the Omen X 65 Emperium would make a great HDR display with high contrast, according to our tests, and certification to play HDR at a minimum brightness of 1,000 nits. 

More: HP Omen X 65 Emperium review 

Discounts on the Best 4K Gaming Monitors

Whether you're shopping for one of the screens that made our list of best 4K gaming monitors above or something else, you may find savings by checking out our best monitor deals page, along with our lists of Dell coupon codes, Lenovo coupon codes, LG coupon codes, HP coupon codes, Monoprice coupon codes and Newegg promo codes.

MORE: Best Gaming Monitors

MORE: How We Test Monitors

MORE: All Monitor Content

MORE: HDMI vs. DisplayPort: Which Is Better For Gaming?

  • Muggi1909
    hey nice job there, but can you pls take a look on this monitor too, I think personal its the best buy for the bucks if you want a 4k 144hz gaming monitor for around 800 dollars or less :)
    Acer Nitro XV273
    Reply
  • spoidz
    Did Prices just explode all of a sudden?

    Some of the best are back up to $2000 MSRP and not far below at retail. I thought we were seeing lower $1000's a week or so back.
    Or maybe I just haven't been noticing, but I have been web "window shopping" these last weeks or so.
    Reply
  • ryzengamer
    The ASUS VP28UQG freesync 1ms gaming monitor is good and affordable. It comes with a 3 years on site warranty here.
    Reply
  • BulkZerker
    spoidz said:
    Did Prices just explode all of a sudden?

    Some of the best are back up to $2000 MSRP and not far below at retail. I thought we were seeing lower $1000's a week or so back.
    Or maybe I just haven't been noticing, but I have been web "window shopping" these last weeks or so.

    This list looks like the same one they released last time. If they haven't reviewed any standout 4kmonitors why change it?
    Reply
  • fry178
    anything past 500$ is kind of useless, unless you also using it to "work" on it.
    i can buy a 49" 4K tv with 120hz and local dimming for sub 1000 (even brands like sony),
    and use a lower res like 1080 to play (tvs upscale 1080p content properly),
    which would also reduce (4K related) input lag a bit and will not require a 1070.
    Reply
  • ivoleiden
    What about the Samsung CRG90 ? 49", super ultra wide 5120 x 1440 , HDR 1000, 120hz (overclockable to 144), native freesync. I ordered one, it's coming tomorrow to replace my 32" QHD 60Hz NoHDR really looking forward!!! only 1,200 Eur!!!
    Reply
  • bendvis
    Why is the Razer Raptor 27 listed as the best 4k gaming monitor when it's a 1440p screen?
    Reply
  • JonnyDoom
    Anything less than 32 inch is to small for 4K. Things will be small and far away. 2k works though at around 28 inch.
    Reply
  • mac_angel
    spoidz said:
    Did Prices just explode all of a sudden?

    Some of the best are back up to $2000 MSRP and not far below at retail. I thought we were seeing lower $1000's a week or so back.
    Or maybe I just haven't been noticing, but I have been web "window shopping" these last weeks or so.

    Typically stores will jack up the prices before Black Friday and then they can list a sale price and post a bigger difference - "Now $800 off the previous price"
    Reply
  • mac_angel
    I'm curious with TomsHardware is going to start reviewing FreeSync TVs for gaming. You're bringing up the future of 4k OLED monitors coming, and Alienware's 55" being around $4000. Samsung's 8000 series and up (55" and up) have 4k, HDR and FreeSync. And LG's new firmware for most of their OLED TVs also enable FreeSync. All are much cheaper than Alienware's, even at bigger sizes.
    Reply