Other features
Ease of use
LG 27GX790A-B
3.5
The menu and day-to-day controls are approachable, although extracting peak performance and handling OLED care may be demanding.
Sony INZONE M9 IINo score yet
Backlight bleed control
LG 27GX790A-BNo score yet
Sony INZONE M9 II
3.0
One assessment found inky blacks without obvious bleed, while another encountered pervasive cloudy halos. Dark-scene cleanliness is far from consistently praised.
Bass reproduction
LG 27GX790A-BNo score yet
Sony INZONE M9 II
2.0
Bass is consistently the weak spot of the included audio: some hear a modest improvement over the original M9, but it remains thin, muffled or prone to clipping.
Blooming control
LG 27GX790A-BNo score yet
Sony INZONE M9 II
1.7
The coarse local-dimming zones can throw obvious halos around bright objects on dark scenes. Clouding is one of the most divisive and repeatedly criticized parts of the picture.
Built-in RGB lighting
LG 27GX790A-B
4.0
The hexagonal rear lighting adds restrained gaming flair, though its brightness and customization may feel limited next to showier setups.
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Burn-in protection
LG 27GX790A-B
3.9
Pixel movement, a screen saver, cleaning functions and standby behavior help manage OLED wear, but prolonged static interfaces still require care.
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Dual-mode versatility
LG 27GX790A-B
2.0
There is no 4K/1080p dual-resolution switch; the panel stays focused on native 1440p esports gaming rather than covering two distinct gaming modes.
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Gaming timers
LG 27GX790A-B
2.0
Crosshairs and frame-rate overlays are present, but the omission of timers disappoints users expecting a fuller set of esports aids.
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Gradient smoothness
LG 27GX790A-B
2.0
Dark gradient steps and gray banding can be visible, especially near black; refresh routines or firmware adjustments may reduce the problem without guaranteeing its removal.
Sony INZONE M9 IINo score yet
HDR color saturation
LG 27GX790A-BNo score yet
Sony INZONE M9 II
5.0
HDR games and videos show saturated, lively color that can look almost three-dimensional, especially in brightly lit scenes.
Headphone jack convenience
LG 27GX790A-BNo score yet
Sony INZONE M9 II
4.0
A standard 3.5mm audio output is helpful for replacing the modest built-in speakers with wired headphones or external sound.
Headphone output quality
LG 27GX790A-B
4.5
The four-pole headset output is convenient, and DTS processing can add impressive depth and bass without external speakers.
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Image retention
LG 27GX790A-B
2.0
OLED retention and burn-in remain considerations for long sessions with static heads-up displays, despite onboard protection tools.
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Image scaling
LG 27GX790A-B
1.0
The 24-inch emulation mode can look blurry or incorrectly mapped, making native full-screen 1440p the more reliable choice.
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Included accessories
LG 27GX790A-B
5.0
The package includes useful HDMI, DisplayPort, and USB cables, reducing the need for extra setup purchases.
Sony INZONE M9 IINo score yet
Local dimming flicker
LG 27GX790A-BNo score yet
Sony INZONE M9 II
5.0
The local-dimming system showed no noticeable flicker in testing, a welcome result for anyone sensitive to changes in backlight output.
Packaging quality and presentation
LG 27GX790A-BNo score yet
Sony INZONE M9 II
5.0
The display, base and stand arrive packed separately and securely, keeping the quick assembly process straightforward.
Photo editing
LG 27GX790A-B
4.5
Constant-brightness operation and adjustable color controls help with Photoshop-style work, though high-resolution alternatives remain appealing for detail work.
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Pixel density
LG 27GX790A-B
4.0
QHD at 27 inches is sharp enough for many games, but 4K displays deliver visibly finer details, particularly with tiny interface text.
Sony INZONE M9 IINo score yet
Power-on readiness
LG 27GX790A-BNo score yet
Sony INZONE M9 II
2.0
The factory power-saving preset makes the first picture look too dim. Turning it off and enabling a stronger image mode improves the experience dramatically.
Premium feel
LG 27GX790A-B
4.7
Metal stand components, a slim frame and neat styling give the display an expensive, carefully built feel.
Sony INZONE M9 IINo score yet
PS5 gaming
LG 27GX790A-BNo score yet
Sony INZONE M9 II
4.7
Sony’s console-focused tuning, automatic HDR setup and strong 4K/120Hz support make PS5 gaming a standout strength. Not every tester likes the underlying dimming and black-level performance.
SDR/HDR mode switching
LG 27GX790A-BNo score yet
Sony INZONE M9 II
3.5
HDR can look excellent, but certain Windows games may require manually disabling it for correct color. SDR remains a usable alternative on consoles.
Speaker quality
LG 27GX790A-BNo score yet
Sony INZONE M9 II
1.8
Basic audio playback works but lacks the fullness expected from a premium gaming setup, sounding particularly tinny or muffled at elevated levels.
Text fringing
LG 27GX790A-B
2.0
Small fonts can have colored edges or a hazy outline because of the WOLED subpixel pattern and matte coating, reducing its appeal for heavy reading.
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USB-C power delivery
LG 27GX790A-B
2.0
There is no USB-C charging output, so handhelds and laptops need their own power connection.
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VESA mount compatibility
LG 27GX790A-B
4.0
The standard 100×100mm mount supports alternate stands or arms if the included base is not a good fit.
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Performance
Audio settings
LG 27GX790A-B
5.0
Three DTS headphone modes provide distinct sound presentations, adding welcome flexibility for gaming and entertainment.
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Automatic brightness limiting
LG 27GX790A-B
4.2
Constant-brightness modes keep desktop luminance steady, while variable modes add extra pop for games and video. A higher peak setting can make brightness changes more obvious.
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Color accuracy
LG 27GX790A-B
3.6
Color can look excellent once calibrated, but out-of-box white balance and gamma results vary sharply between tests and modes.
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DisplayPort connectivity
LG 27GX790A-B
3.2
DisplayPort 2.1 is a welcome gaming connection, but UHBR13.5 bandwidth still requires compression for 1440p at 480Hz, and occasional handshake problems have been reported.
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KVM switch performance
LG 27GX790A-B
2.0
There is no built-in KVM, limiting convenience for people who want a single keyboard and mouse to follow multiple computers.
Sony INZONE M9 IINo score yet
Local dimming performance
LG 27GX790A-BNo score yet
Sony INZONE M9 II
1.7
The local-dimming system is a major weak point: limited, slow-moving zones can leave conspicuous blotches, particularly around small highlights on dark images.
Long-range enemy visibility
LG 27GX790A-BNo score yet
Sony INZONE M9 II
4.0
The FPS picture preset lifts brightness and contrast to help distant opponents stand out against game environments.
Operating noise
LG 27GX790A-B
4.0
The internal cooling arrangement is described as very quiet, with no distracting fan noise in normal use.
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Spatial audio quality
LG 27GX790A-B
4.7
DTS Headphone:X adds useful directional cues and fuller sound through headphones, making it a worthwhile extra for headset users.
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Controls and connectivity
Automatic HGiG tone mapping
LG 27GX790A-BNo score yet
Sony INZONE M9 II
5.0
PS5 and PS5 Pro integration automatically adjusts HDR during setup, making it easier to get convincing contrast without manually tweaking the console.
Color calibration controls
LG 27GX790A-B
4.5
Adjustable white balance, gamma, gamut, and even hardware calibration offer unusually flexible fine-tuning. A colorimeter is useful if color precision is a priority.
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HDR tone mapping accuracy
LG 27GX790A-B
4.3
The older panel is praised for preserving intended HDR brightness more faithfully than some newer modes, though peak settings can still compress highlights.
Sony INZONE M9 IINo score yet
PC-based monitor controls
LG 27GX790A-BNo score yet
Sony INZONE M9 II
5.0
Inzone Hub provides a convenient, often faster way to adjust settings and update firmware from Windows. One early test could not access the latest app version yet.
Software support
LG 27GX790A-B
3.0
LG’s Windows utility is usable rather than elegant, and firmware changes have delivered both picture improvements and unresolved glitches.
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Comfort and build
Eye comfort features
LG 27GX790A-B
3.3
Low-blue-light treatment and adjustable brightness help some users, but others report tired eyes or discomfort during extended use.
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Tracking and training
Gamma tracking
LG 27GX790A-B
3.0
Some measurements are very accurate while others find bright midtones, crushed shadows or awkward preset behavior. Calibration and firmware can make a substantial difference.
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Ownership and support
Reliability over time
LG 27GX790A-B
2.0
OLED wear and sporadic display glitches make long-term care and firmware stability more consequential than on a typical LCD.
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Warranty and support service
LG 27GX790A-B
2.7
Warranty duration and burn-in terms are a recurring source of caution, particularly alongside longer rival guarantees and third-party sellers.
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