You can enjoy sharp images and realistic colors on the Quad HD OLED display.
With a low response time and high refresh rate, movements and transitions look smooth.
Your monitor and video card work together smoothly thanks to the FreeSync Premium PRO support.
For the 480Hz maximum refresh rate in Quad HD, you have to connect the monitor via DisplayPort.
This monitor doesn't have built-in speakers for the sound of your games and music.
Description
With the 27-inch UltraGear 27GX790A-B gaming monitor, you won't miss a single detail during fast games and you can enjoy a colorful image. Thanks to the Quad HD resolution, all details look sharp on the screen, Color are realistic and bright thanks to the OLED display and the HDR10 color technology. In addition, you can see your opponents appear quickly and sharply on the screen thanks to the 480Hz refresh rate and the low 0.03ms response time. The monitor and video card also work smoothly together thanks to the FreeSync Premium PRO technology, which reduces screen tearing. You're less bothered by strained eyes thanks to the blue light filter and flicker-free technology. Do you often change position? You can tilt, rotate, or adjust the LG UltraGear monitor in height easily to your liking.
Note: the maximum refresh rate via HDMI is 144Hz. For 480Hz gaming, you connect the monitor via DisplayPort.
Very good contrast and color reproduction (DCI-P3 99%!)
High refresh rate
HDR600 does its job very well
No smart options
I was torn between the Samsung Odyssey G7 LS27DG702EUXEN and this LG monitor, both in roughly the same price range. Both are strong screens, but they target different types of users. After extensive testing, I chose the LG. Below, I'll explain why; hopefully, it will help you with your choice too :).
Samsung: a monitor that's almost a TV
Pros:
Good value
Built-in speakers
Smart platform (Netflix, TV, apps)
Lots of features and settings
Cons:
You get a lot of extra features, but that comes at the expense of the focus on image quality
Lower contrast and less vibrant color reproduction (mix of DCI-P3, RGB, and Adobe)
The IPS panel is noticeably lower quality than the LG's
Less focus on pure performance
In summary:
Ideal if you want a single device that serves as both a gaming monitor and an entertainment screen.
LG: Maximum performance, no bells and whistles
Pros
Focused on pure image quality and gaming
Higher quality IPS panel (Nano) with better colors and almost OLED-level
Higher contrast and brightness
Color reproduction = DCI-P3 99%!!!
Extremely high refresh rates, ideal for PC & console gaming
Better HDR
No unnecessary smart platforms: just plug and play
Cons
No built-in smart features
No built-in speakers/remote control
In summary:
The best choice if you're looking for pure performance and image quality within a similar price range.
Final conclusion
Both monitors are good, but they offer something different:
-> Do you want to game and also use Netflix, TV, and smart features? → Go for the Samsung.
-> Do you want the best image quality and performance without unnecessary extras? → Go for the LG.
That was the deciding factor for me: I simply wanted a top-notch monitor for gaming, not a TV-like screen that always started up with a French channel. That's why I chose the LG.
Hope this helps :)
Alex
21 November 2025
Automatically translated from Dutch
Review is 9,6 out of 10.
9,6/10 ()
Recommended
Very nice picture
Speed
Easy to use
Sound
This screen is highly recommended! The design is good. Everything you play is very sharp and games play quickly. If you often play games, this screen is really great. The refresh rate is very fast, which makes everything run very smoothly. I often had this problem with my old screens. The resolution also leaves nothing to be desired. Everything is crystal clear. In addition, the screen was set up within 5 minutes. So no time is lost! I can therefore recommend this screen to every gamer, or anyone who just wants a good screen! It takes your gaming experience to the next level.
Koen123
22 April 2025
Automatically translated from Dutch
Review is 8,0 out of 10.
8,0/10 ()
Good Monitor
price
monitor interface
beautiful picture
software annoyances
For the price a very good monitor. IPS and no Oled no problem. There are some problems with the HDR and windows. LG should solve this with an update. In terms of pixel lottery I was able to exchange my first one at coolblue without any problems. I had 1 white pixel. Second monitor was perfect. Hence pixel lottery. All monitors of all brands suffer from it. just a very good monitor. the operation on the LG monitor can not compete with any other brand.
Paul
12 April 2025
Automatically translated from Dutch
Specifications
The list with properties are filtered when you type
Product
Product
Product number
961681
Manufacturer code
27GX790A-B.AEU
Brand
LG
Warranty
2 years
Processing of your defect
Via Coolblue
Screen
Screen
Recommended display resolution
2560x1440
Sharpness
Quad HD (1440p)
Aspect ratio
Standard (16:9)
Refresh rate
480 Hz
Response time
0,03 ms
Panel type
OLED
Local dimming
HDR support
Contrast ratio
1500000
Touchscreen
Type of HDR
DisplayHDR 400 True Black, HDR10
Screen reflection
Anti-glare
Blue light filter
Flicker-free technology
Color space
DCI-P3
Color depth
1 billion colors (10-bit)
Adaptive Sync
Type of adaptive sync
Freesync Premium Pro, G-Sync Compatible
Resolution width
2560 pixels
Resolution height
1440 pixels
Anti-reflection type
Anti glare
Horizontal viewing angle
178 °
Physical properties
Physical properties
Height
57,93 cm
Width
60,52 cm
Depth
24,91 cm
Weight
9,3 kg
Color
Black
Including stand
Material
Plastic
Cable management
Appearance
Gaming
Curved
Connectors and connections
Connectors and connections
Number of HDMI connectors
2
Number of Female HDMI type A 2.1 ports
2
Number of headphone jacks
1
Type of headphone connection
3.5mm (TRS)
Number of female standard USB-A ports
1
Female standard USB-A port version
3.0
Number of female 3.5mm TRS Audio Jack ports
1
Number of female standard USB-B (3.0 form) ports
2
Type of USB port
Standard USB-A, Standard USB-B (3.0 form)
Number of USB ports
3
Suitable for daisy chaining
Type of USB cable included
USB-A to USB-B
USB-C dock
Included
Included
Included by default
DisplayPort cable, HDMI cable, USB cable
Not included by default
USB-C cable
Adjustability
Adjustability
Adjustable in height
Tiltable
Pivotable stand
Pivot function
VESA mount option
VESA mount
100x100mm
Energy consumption
Energy consumption
Energy label
F
Energy consumption standby
0,5 W
Energy consumption active
48,22 W
Energy consumption per 1000h
25 kWh
Annual energy consumption
36,5 kWh
Annual energy costs
14,6 euros
Other properties
Other properties
Built-in speakers
Webcam
Split screen
Kensington lock
Quality properties
Quality properties
Recommended for use
Gaming, Image editing and graphic design, Internet, email, and text processing, Photo editing, Video editing, Watching movies in Full HD
