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Best 4K 120Hz Monitor (Review) in 2021

Reviewed by Oguz

Last updated at November 10th, 2020

We have been hearing about 4K monitors frequently for quite some time now, same for 120Hz gaming monitors.

However unlike the initial wave of 4K monitors, there are newer 4K monitors that are now capable of 120Hz response time. In this article we will review the best 4K resolution 120Hz monitors on the market.

Acer Predator X27 4K gaming monitor with 120Hz refresh rate

Additionally, we have compiled a complete list of 4K 120Hz monitors on the market, so that you can explore all the alternatives available.

Quick Picks: Our Top 4k 120Hz Monitors

We have reviewed many monitors below, however if you just get to bottom of this, here are our top picks, but make sure the read all the reviews we have compiled for you.

New
Acer Predator X27 Pbmiphzx 27" UHD (3840 x 2160) IPS Monitor with NVIDIA G-SYNC Ultimate, VESA Certified DisplayHDR 1000, Quantum Dot, 144Hz, Adobe RGB, (Display Port & HDMI Port),Black
Acer 27"
3840x2160 • 4ms • G-sync • Vesa Mount • Hdmi • Dp • X27 Pbmiphzx
View
New
Asus ROG Strix XG438Q 43” Large Gaming Monitor with 4K 120Hz FreeSync 2 HDR Displayhdr 600 90% DCI-P3 Aura Sync 10W Speaker Non-Glare Eye Care with HDMI 2.0 DP 1.4 Remote Control,Black
ASUS 43" 120Hz
3840x2160 • Freesync • Hdmi • XG438Q
View

Before we look in to the best 4K 120Hz monitors on the market, we will go over some of the important things you should pay attention regarding to these monitors.

4K Resolution Evolution

4K resolution (or in other words UHD, Ultra-High Def) tells us how many pixels are displayed on the monitor, and in this case It is 3840 by 2160.

The very first 4K resolution monitor was launched in 2013 for almost $5,000 by ASUS, and It started the new era of high resolution monitors.

This monitor wasn't even 27 Inches, It was 31.5. Which means that same amount of pixels distributed to a larger surface area, lower pixel density, which means lower quality panel.

PC Gaming with 4K 120Hz Monitor

It took many years for 4K resolution display panels to be affordable for consumers. In addition to panel prices, graphic card technology needed to catch up to deliver that many pixels smoothly.

Asus ROG Strix 43 Inch 4K gaming monitor

Nowadays most modern computer systems should have no problem driving 4K monitor with 60Hz refresh rate, and many more graphics cards are now capable of providing higher refresh rates for 4K resolutions.

For example, NVDIA GeForce GTX 1650 is capable of providing 4K resolution at 120Hz refresh rate.

Next Generation Consoles with 4K 120Hz Support

In 2020, Sony and Microsoft are releasing their next generation gaming consoles with many new technologies and upgrades.

These include PlayStation 5, Xbox Series X, and the new Nintendo Switch which is expected to be released in 2021.

Based on the specs that they have released so far, these next generation gaming consoles will support 4K resolution with 120Hz refresh rate.

Overclocking 120Hz Monitors for 144Hz Refresh Rate

There are two high refresh rate standards that are emerging currently, these are 120Hz and 144Hz refresh rates.

144Hz has been around for a while with the help of PC Graphics Cards supporting this refresh rate.

However with the new gaming consoles released we started seeing 120Hz native Gaming monitors.

The interesting part is that, these 120Hz monitors are designed to handle this refresh rate, but additionally most of them support overclocking to 144Hz refresh rate.

DisplayPort 1.4 and HDMI for 4K resolution at 120Hz

120Hz refresh rate simply doubles the number of frames displayed every second compared to the standard 60Hz monitors.

Acer Predator X27 4K gaming monitor with 120Hz refresh rate

Every frame displayed on the screen will need to be transmitted from the computers graphics unit to the monitor, which means that the data bandwidth required to deliver this data is 2 times as well.

The connectivity technology also needs the capacity to deliver this much data in the same amount of time. Currently only Display Port 1.4 and the newer version of HDMI supports this bandwidth.

Best 4K 120Hz Monitors

Based on some of the important factors we have went over, We selected and reviewed the best 4K resolution 120Hz gaming monitors that are currently on the market.

Our Highlights

  • 4K UHD Resolution
  • NVIDIA G-Sync Ultimate
  • DisplayHDR 1000 Certified
  • VESA Mountable
  • 99% Adobe RGB Color Gamut
  • Dynamically Controlled Backlight
  • DCI-P3 Color Space
  • 120Hz with 144Hz Overclock
  • 4ms GTG Response Time
  • Premium Quality

    Our Highlights

  • 4K Resolution LED IPS Panel
  • 120Hz Refresh Rate with (144Hz OC)
  • Focus Shield Attachment
  • AMD FreeSync
  • NVIDIA G-Sync Ready
  • VESA Mount Compatible
  • DCI-P3 Color Gamut
  • Built-In Speakers
  • HDR400 Compliant
  • 3-Year Warranty
  • Premium Quality

    Our Highlights

  • 4K (3840x2160) Resolution
  • HDR 600 Certification
  • 90% DCI-P3 Color Gamut
  • 120Hz with Radeon Free Sync 2
  • Built-In 10W Dual Speakers
  • Included Remote Control
  • VESA Mount Compatible
  • Premium Quality

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