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Home » Tech Roundup » Best 4K Gaming Monitors This Q3 2021 – Great For You High-end Graphics Card

Best 4K Gaming Monitors This Q3 2021 – Great For You High-end Graphics Card

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4K gaming is finally more achievable thanks to NVIDIA’s new GeForce RTX 3080 (Ti) and RTX 3090 graphics cards. In our review of the RTX 3080, we observed that the RTX 3080 performs better on higher resolutions. To be more precise, it performs better in 4K compared to its predecessors, like the RTX 2080 Ti. I’m glad that we can now play games smoothly using a 4K high refresh rate gaming monitor without any hiccups. If you are planning to get one, here are some of the best 4K gaming monitors, with high refresh rates, available in the market today.

Best 4K High Refresh Rate Gaming Monitors

TL; DR – Below is a summary of the 4K gaming monitors mentioned in this article.

ModelDisplay SizeRefresh RateResponse TimeAdaptive SyncPanelBrightnessHDRRelease DateLink
Acer Nitro XV273K Pbmiipphzx27"120Hz - 144Hz (OC)4 ms GtGAMD FreeSyncIPS350 cd/m² - Native, 400 cd/m² - Peak (HDR Mode)DisplayHDR400Q1 here
Acer Predator X27 Pbmiphzx27"98Hz - 144Hz (OC)4 ms GtGNVIDIA G-SYNC UltimateIPS1000 cd/m²DisplayHDR1000Q4 here
Acer Predator XB273K Gpbmiipprzx27"120Hz - 144Hz (OC)4 ms GtGG-SYNC CompatibleIPS350 cd/m² - Native, 400 cd/m² - Peak (HDR Mode)DisplayHDR400Q1 here
Acer Predator XB273K Sbmiprzx27"120Hz - 144Hz (OC)4 ms GtGNVIDIA G-SYNCIPS350 cd/m² - Native, 400 cd/m² - Peak (HDR Mode)DisplayHDR400Q1 here
Alienware AW5520QF55"120Hz0.5ms GtGAMD FreeSync PremiumOLED400 cd/m²Q3 here
AORUS FI32U32"144Hz1ms GtGAMD FreeSync Premium ProSS IPS350 cd/m²DisplayHDR 400Q2
AORUS FO48U48"120Hz1ms GtGAMD FreeSync PremiumOLED150 cd/m² - typical, 900 cd/m² peakDisplayHDR10Q2
Asus ROG Strix XG27UQ27"144 Hz1ms GtGG-SYNC CompatibleIPS350 cd/m² (Typical)/400 cd/? (Peak)DisplayHDR400Q2 here
Asus ROG Swift PG27UQ27"144 Hz4 ms GtGNVIDIA G-SYNC UltimateIPS600 cd/m² - 1000 cd/m² (peak)DisplayHDR1000Q3 here
ASUS ROG Strix XG438Q43"120Hz4 ms GtGAMD FreeSync2 HDRVA450 cd/m²DisplayHDR600Q3 here
ASUS ROG Swift PG43UQ43"144Hz4 ms GtGG-SYNC CompatibleVA1000 cd/m² (peak)DisplayHDR1000Q1 here
LG UltraGear 27GN950-B27"144Hz1ms GtGAMD FreeSync Premium ProIPS400 cd/m²DisplayHDR600Q3 here
LG UltraGear 27GN95B-B27"144Hz1ms GtGAMD FreeSync Premium ProIPS450 cd/m² - Native, 750 cd/m² - PeakDisplayHDR600Q3 here
Nixeus NX-EDG274K27"144Hz4 ms GtGAMD FreeSync PremiumIPS400 cd/m²Q1 here
Viotek GFI27QXA27"120Hz - 144Hz (OC)5ms (typical)AMD FreeSyncIPS350 cd/m²Q3 here

Compared to 1080p and 1440p, 4K UHD resolution or 3840×2160 isn’t quite as popular or common to PC gamers compared to the first two monitor resolution. That’s because playing games at 4K resolution requires a lot of GPU power. And previously, the only graphics card that could give you “playable” frame rates at 4K is the GeForce RTX 2080 Ti – a $1,000-$1,300 GPU.

That changes with the release of the GeForce RTX 3080 (Ti) and RTX 3090. The RTX 3080 starts at $699 making it cheaper compared to the RTX 2080 Ti. Not only that, but the RTX 3080 is also faster than the RTX 2080 Ti at around ~30% at 4K resolution. No doubt that the RTX 3080 is simply a no brainer. That’s why NVIDIA is having supply issues since they can’t keep up with the demand.

On the other hand, the GeForce RTX 3090 is around 45% faster than the RTX 2080 Ti, or about 15% than the RTX 3080. But this graphics card starts at $1,500. You’ll have to pay a lot more for this GPU, yet only gain less. This is a halo product or money-no-object product after all. If you want the best and fastest, and money is not a concern to you, this graphics card is for you.

Long story short, thanks to these graphics cards, smooth 4K gaming is very much achievable.


What are the Pros and Cons of a 4K gaming monitor?

With a 4K monitor, you get a crisp and clear text and images unlike in lower resolutions. Texts are noticeably sharper, just like when you look at your smartphones with HD display. In gaming, there is a noticeable improvement in visual fidelity and sharpness of the image. It’s simply on a new level compared to a 1080p or 1440p monitor.

On the flip side, a 4K resolution has 4x more pixels than a 1080p resolution or around 3x more pixels than 1440p. This means you need a fairly powerful graphics card to drive all those pixels and push all those frames especially when gaming. While many modern graphics cards can technically be used with a 4K resolution, gaming at 4K is a different story.

Why 4K monitor? Why not 1440p?

While many may opt for a 1440p monitor since it’s (significantly) cheaper than a 4K monitor; text and images simply look better and sharper on a 4K resolution monitor. You can’t make out the individual pixels, not unless you put your eyes just a few centimeters away from the monitor.

Not to mention, those who are content creators by day and gamer at night would also benefit from a 4K monitor thanks to the real estate that it provides. I prefer to edit my photos and videos on a 4K monitor.

What are the best graphics cards for 4K gaming?

Currently, there are only two graphics cards that I can comfortably recommend for 4K gaming. And these are the GeForce RTX 3080 (Ti) and RTX 3090. If you don’t have the best GPU for 4K gaming yet, check out our list of the best RTX 3080 here or the faster RTX 3080 Ti here.

I have already listed the 4k gaming monitor in the table above, as a summary. Now let’s go through these high refresh rate 4K gaming monitors one by one below. The monitors are listed in alphabetical order by the way.

Acer Nitro XV273K Pbmiipphzx 4K Gaming Monitor

Acer Nitro XV273K Pbmiipphzx 4K Gaming Monitor

Since this is alphabetical order, the first one is the Acer Nitro XV273K. It’s a 27″ monitor, with a resolution of 3840×2160 and it’s capable of reaching up to 144Hz refresh rate. It also features a 1ms VRB response time, or ~4ms GtG, and a brightness of up to 400 nits.

The Acer Nitro XV273K Pbmiipphzx features AMD Radeon FreeSync and it’s fully G-Sync compatible as well. It does support HDR, but only HDR400, not true HDR. It does feature DCI-P3 90% wide color gamut with a low Delta e<1. There’s also a built-in 4W speaker, along with two DisplayPorts 1.4, two HDMI 2.0, and four USB 3.0 ports.

Speaking of connectivity, you will need to use two DisplayPorts if you want to achieve a 144Hz refresh rate with this monitor. Its native refresh rate is 120Hz, which is still better than a 60Hz display.

The Acer Nitro XV273K is a sub $1000 4K gaming monitor, and you can check out its latest pricing and availability on here.

Acer Predator X27 Pbmiphzx 4K HDR Gaming Monitor

Acer Predator X27 Pbmiphzx 4K HDR Gaming Monitor

Up next is the Acer Predator X27 – one of the first few 4K gaming monitors that offer a high refresh rate and true HDR. It’s also a 27″ monitor with 3840×2160 resolution, but with NVIDIA G-Sync Ultimate for a tear-free gaming experience. It is DisplayHDR1000 certified, covers 99% of Adobe RGB, and has DCI-P3 color space with 10-bit color support. This makes the Acer Predator X27 a perfect gaming/productivity monitor; especially for those who work and play on the same machine.

However, this 4K monitor doesn’t come without any caveat. Its native resolution is only 98Hz if you want to enable 10-bit with HDR. Running it at 120Hz downgrades the color depth to 8-bit. And since it doesn’t have DSC, you will need two DisplayPorts to run it at 144Hz. Compared to the latest 4K (gaming) monitors, the Acer Predator X27 is a bit dated.

Although, this one is still a very capable 4K monitor. Originally priced just below the $2,000 mark, I believe its price has gone down a bit over the years. For the latest pricing and availability, check it on here.

Acer Predator XB273K Gpbmiipprzx and Sbmiprzx 4K 144Hz Gaming Monitor

The Acer Predator XB273K is quite similar to the Nitro XV273K. It’s also a 27″ IPS display, 3840×2160 resolution, 4ms GtG response time, up to 400 nits brightness, and up to 144Hz refresh rate. To make matters a bit more complicated, there’s also an Acer Predator XB273K Sbmiprzx variant.

Both the Acer XB273K Gpbmiipprzx and Sbmiprzx are very identical monitors, including their set of features. However, the Sbmiprzx is more expensive than the Gpbmiipprzx. This is due to the adaptive sync technology used. Gpbmiipprzx uses a “G-Syn compatible” sync technology, while the Sbmiprzx features a true NVIDIA G-Sync module. That’s why it’s more expensive.

The Predator XB273K Gpbmiipprzx has an MSRP of $829.99, while the Sbmiprzx has an MSRP of $1,099.99. For the latest pricing and availability of both monitors kindly check out the links below.

Acer Predator XB273K Gpbmiipprzx available on here
Acer Predator XB273K Sbmiprzx available on here

Alienware AW5520QF OLED 4K UHD Gaming Monitor

Alienware AW5520QF 4K OLED gaming monitor

Now, this is one is a pretty big gaming monitor – the Alienware AW5520QF; with its 55″ OLED display, it’s more suited in your living room or bedroom. Alienware has a lot of gaming monitors, but I think the Alien AW5520QF is currently their only 4K gaming monitor. It’s an OLED panel, so expect a much better “true-to-life” colors than any of the monitors in this list.

The Alienware AW5520QF features AMD FreeSync Premium technology, enabling it for a smooth lag and tear-free gaming experience at 120Hz. It’s also G-Sync compatible, so an RTX 3080 or RTX 3090 driving this monitor wouldn’t be an issue.

It also features a really fast 0.5ms gray to gray response time, and a cinematic-quality, wide color gamut of 98.5% DCI-P3 display. Being an Alienware product, it has a unique and futuristic design, and it even comes with remote control. Definitely more suited for the living or bedroom. However, this OLED 4K gaming monitor is very expensive, retailing just below the $4,000 mark.

If you want the Alienware AW5520QF, you can check it’s latest pricing and availability on here.

AORUS FI32U 4K 144Hz Gaming Monitor

AORUS FI32U 4k Gaming Monitor

The Aorus FI32U is one of Gigabyte’s latest desktop 4K gaming monitors. It features a 31.5″ Super Speed (SS) IPS panel with a resolution of 3840×2160, a GTG response time of 1ms, and a refresh rate of 144Hz with AMD FresSync Premium Pro support. Specs-wise, the FI32U is pretty impressive. When it comes to color accuracy, it covers 95% DCI-P3 and 123% sRGB with 10-bit (8 bits + FRC) color support.

Unlike Gigabyte’s previous Aorus gaming monitors, there are a few unique features that its new gaming monitor has. It comes with a built-in ESS SABRE HiFi DAC for the headphone output. It also has a KVM feature with USB Type-C to control multiple devices. Aside from that, it also features Flicker-free technology, DisplayPort High Bit Rate 3, Aim Stabilizer Sync, Black Equalizer, OSD Sidekick, and Active Noise Cancelling 2.0 for the headphone out.

Its design is reminiscent of the Aorus AD27QD or FI27Q-P, but only larger and with better features. The Gigabyte Aorus FI32U is now available and you can check its latest pricing and availability at here.

AORUS FO48U 4K OLED HDR10 Gaming Monitor

AORUS FO48U 4K OLED Gaming Monitor-01

Aside from the FI32U, Gigabyte also released another impressive 4K gaming monitor. But this time, it’s a 48″ 4K OLED display suitable for a living room or a 4K TV setup. The Aorus FO48U features a 47.53″ OLED panel with a resolution of 3840×2160. It only has a refresh rate of 120Hz, but its response time is 1ms GTG and supports AMD FreeSync Premium.

The Aorus FO48U features a full 10-bit color depth, with 98% DCI-P3 and 130% sRGB. It also features “Space Audio” offering a “true-to-life” sound experience and has the same KVM feature as the FI32U. This monitor is quite large, but it is 300×300 VESA wall mount compatible. Its typical brightness is only 130-150cd/m2, but it can go as high as 800-900 cd/m2 peak and supports HDR10 / HLG.

If you’re looking for a 4K TV/gaming monitor that can be wall-mounted, place on top of a console, or for your living room, the FI32U could be a great option. It’s now available, and you can check its latest pricing and availability at here.

Asus ROG Strix XG27UQ 4K 144Hz DSC Gaming Monitor

Asus ROG Strix XG27UQ 4k 144Hz DSC gaming monitor

The Asus ROG Strix XG27UQ is one of the newer monitors on this list. It’s a 144Hz monitor with 1ms GtG response time and covers 90% of the DCI-P3 color gamut. It also features Display Stream Compression technology. This means that you can achieve a 144Hz refresh rate with only one DisplayPort cable; unlike the Acer 4K 144Hz monitors mentioned above.

However, it’s not clear to me whether it uses FreeSync or another type of adaptive sync technology. It didn’t mention “AMD FreeSync” on its marketing materials, but it is G-Sync compatible.

Its peak brightness is only 400 nits; so although it’s DisplayHDR400 certified, it is still not true HDR. The Strix XG27UQ is very reminiscent of the other Asus gaming monitors. It shares a common design and aesthetics; and it enjoys positive remarks from reviewers and the gaming community alike.

However, being an Asus product, this monitor does come with a more premium price tag as well. For the latest pricing and availability of the Strix XG27UQ, check it on here.

Asus ROG Swift PG27UQ 4K 144Hz HDR10 Gaming Monitor

Asus ROG Swift PG27UQ 4k HDR gaming monitor

Unlike the newer XG27UQ, the Asus ROG Swift PG27UQ is an older 4K 144Hz gaming monitor but features NVIDIA G-Sync Ultimate. It has 1,000 nits of brightness, so it’s DisplayHDR1000 certified. This monitor is in the same ballpark as the Acer Predator X27.

The ROG Swift also features a 384-zone of Full Array Local Dimming, Delta E <3 accuracy covers 97% of DCI-P3 color gamut and supports 99% of AdobeRGB. It’s native resolution though is 120Hz, you can only get 98Hz with 4:4:4 HDR and 120Hz with 4:2:2 HDR.

And, just like the Acer Predator X27, the ROG Swift PG27UQ is also a bit dated but still quite capable, not to mention also an expensive 4K gaming monitor. For the latest pricing and availability of the PG27UQ, check it on here.

ASUS ROG Strix XG438Q HDR Large Gaming Monitor

ASUS ROG Strix XG438Q 4K HDR monitor

Alienware is not the only brand with a large gaming monitor. Asus has the ROG Strix XG438Q, a 43″ 4K monitor, featuring a VA panel and a 120Hz refresh rate via AMD FreeSync2 HDR technology. This monitor is DisplayHDR 600 certified, a bit better than HDR400 but still not true HDR. It also covers 90% DCI-P3 color gamut and it is built with a pair of 10W speakers.

Just like the Alienware AW5520QF, this is designed to be more of a living room or bedroom gaming monitor. At 43″, it’s quite big for a desktop monitor. However, it does only have a VA panel, and it doesn’t come with DSC as well. If you want something similar to the XG438Q, but better, then check out the next monitor.

Meanwhile, if you are satisfied with the ROG Strix XG438Q, it’s available on here.

ASUS ROG Swift PG43UQ 4K 144Hz HDR DSC Gaming Monitor

ASUS ROG Swift PG43UQ 4K 144Hz HDR10 Gaming monitor

If you want something better than the XG438Q, then the ROG Swift PG43UQ is your next best option. This 43″ gaming monitor also features a VA panel, but with a higher 144Hz refresh rate via a “G-Sync compatible” adaptive sync technology. It’s also able to push 1,000 nits of brightness, thus earning DisplayHDR 1000 certification. And it features Display Stream Compression technology.

The ROG Swift PG43UQ is also an ideal gaming monitor in the living room or your bedroom. I wouldn’t use this for a desktop setup due to its size. Since this is better than the XG438Q, the PG43UQ is also more expensive currently retailing for $1,499 USD.

If you need a higher refresh rate, true HDR experience, DSC technology then check out the latest pricing and availability of the PG43UQ on here.

LG UltraGear 27GN950-B and 27GN95B-B 4K Nano IPS 144Hz Gaming Monitor

LG UltraGear 27GN950-B 4k 144hz gaming monitor

The LG UltraGear 27GN950-B is probably one of the most popular, if not the best 4K 144Hz gaming monitor in this list. Its set of features is simply impressive and this monitor was released just last August. Right off the bat, the LG 27GN950 is a 27″ 4K monitor with 144Hz refresh rate and 1ms GtG response time.

It’s an NVIDIA certified G-Sync compatible monitor with AMD FreeSync Premium Pro. It covers 98% of the DCI-P3 color gamut with a DisplayHDR600 certification. It also features VESA DSC or Display Stream Compression technology and on top of that, this monitor is not as expensive compared to the monitors mentioned above.

The LG 27GN950-B comes with an MSRP of $799.99 and since this is a popular monitor, getting one is quite difficult as well. You can check out the latest pricing and availability on here.

Interestingly, there is also another variant of this monitor – the LG UltraGear 27GN95B-B. The naming is quite confusing 27GN950-B -> 27GN95B-B; “B” instead of “0”. I’m not quite sure yet what is the difference, because on paper the 27GN950-B and 27GN95B-B are quite identical.

For the latest pricing and availability of the LG 27GN95B-B, you can check it on here.

The Honorable Mentions

Nixeus NX-EDG274K 4K 144Hz Gaming Monitor

Nixeus NX-EDG274K 4K 144hz gaming monitor

Initially, I would like to include the Nixeus NX-EDG274K as one of the best 4K gaming monitors for the RTX 3080 and RTX 3090. It also has a good set of features, like 4K resolution with 144Hz via AMD FreeSync Premium. It features Display Stream Compression technology, so 1 DisplayPort 1.4 cable is enough to achieve 144Hz.

It’s an okay 4K 144Hz gaming monitor, however, its design is a bit lackluster. It feels or looks cheap compared to the LG 27GN950-B and unfortunately it’s a bit more expensive compared to LG’s monitor as well.

Nevertheless, if you still want to check it out, the Nixeus NX-EDG274K is an okay option and it’s available on here.

Viotek GFI27QXA – “Budget” 4K Gaming Monitor

Viotek GFI27QXA 4k 120hz freesync gaming monitor

The Viotek GFI27QXA is a “budget-friendly” 4K 120Hz gaming monitor that is overclockable to 144Hz and offers up to 1ms of response time. Yes, it’s only “up to” since its typical response time is 5ms and you’ll need to overclock or use overdrive to reach 1ms. It also offers 122% sRGB color gamut (96% NTSC, 91% Adobe RGB, 90% DCI-P3) and 1M:1 DCR.

However, running it at 144Hz will disable HDR and FreeSync and will require two DisplayPorts 1.4. This 4k gaming monitor doesn’t have DSC technology, thus it requires two DisplayPorts to run at 144Hz. Despite being one of the newer 4k 120hz gaming monitor released in the market, it’s not as good compared to the other monitors mentioned above.

For me, it’s just an “okay-ish” monitor, still worth mentioning though since it’s a bit cheaper than the other 4K monitor and it’s capable of 120Hz refresh rate thanks to AMD FreeSync.

For the latest pricing and availability of the Viotek GFI27QXA, you can check it on here.

Closing Remarks

There you have it! These are some of the best 4k high refresh rate gaming monitors available on the market. The last two monitors, from Nixeus and Viotek, aren’t really the best around, but just an alternative. Also, this list doesn’t cover the SmartTVs or Smart OLED TVs. While most of them do have 4K resolution, have at least 120Hz refresh rate, and some are even G-Sync compatible; those are just in a different category.

If you ask me, I’m leaning towards the LG UltraGear 27GN950-B or the Asus ROG Strix XG27UQ. Both monitors feature Display Stream Compression; capable of reaching 144Hz via a single DisplayPort cable. While both monitors don’t offer a true HDR experience, they do come with a really good set of features that tick all the boxes.

How about you? Which 4K gaming monitor are you planning to get?

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I love computers since I was a kid. I’m always fascinated with new technology, especially in the PC world. Many years ago, I was curious if the reviews I read were true and real. So, why not test them myself and share my first-hand experience? And thus, here we are. Thanks for reading!

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