LG

LG UltraGear OLED GX7 27GX790B

A top-tier 1440p monitor for anyone building a living-room setup, leading with 540 Hz.

86/100
Strong value
Overall score · how we rate
540 HzWOLED0.02 msHDR5002560x144016:9
£700best price at Amazon
In stock at 1 retailer

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Price checked across retailers daily

Why we rate it

  • G-Sync
  • FreeSync
  • VRR
  • Above-average refresh rate
  • Below-average displayport
Score profile

Where the LG UltraGear OLED GX7 27GX790B wins and loses

Scored against the 1440p monitors class
DisplayPortsGamingErgonomics88649494
Display
88
Ports
64
Gaming features
94
Ergonomics
94
Full specification

Specifications

Grouped · supported features marked in blue

Display

Size27 "
Resolution2560
Aspect ratio16
Panel typeWOLED
Refresh rate540 Hz
Response time0.02 ms
Peak brightness1500 nits

HDR and contrast

HDR certificationHDR500

Ports

HDMI version2.1
DisplayPort1
DisplayPort version2.1
USB-C1

Gaming features

G-SyncYes
FreeSyncYes
VRRYes
Motion blur reductionYes

Ergonomics

TiltYes
SwivelYes
PivotYes

More specs

Weight6.8 kg
Adaptive syncYes

Watch it in action

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Head to head

LG UltraGear OLED GX7 27GX790B vs LG LG UltraGear OLED GX7 27GX790A

Highlighted cell = better in that row
DisplayPortsGamingErgonomics
LG UltraGear OLED GX7 27GX790BLG UltraGear OLED GX7 27GX790A
 LGLG UltraGear OLED GX7 27GX790BThis pageLGLG UltraGear OLED GX7 27GX790A
Overall score86 /100Better81 /100
Refresh540 HzBetter480 Hz
Size27 "27 "
Panel typeWOLEDWOLED
Response0.02 msBetter0.03 ms
HDR certifiedHDR500HDR 400
Peak1500 nitsBetter1300 nits
Who it's for

Is the LG UltraGear OLED GX7 27GX790B right for you?

Buy it if
Made for the living room

Anyone building a living-room setup who want a 1440p monitor that delivers without fuss, and this one fits.

Skip it if
Skip it if

You need the brightest, sharpest panel, in which case a higher-tier 1440p monitor is the better call.

Home cinema viewer
Wants the best picture for films and gaming nights.
excellent
Everyday watcher
Mixed TV, streaming and the odd console session.
good
Budget upgrader
Replacing an older set without overspending.
okay
Common questions

Before you buy

Is the LG UltraGear OLED GX7 27GX790B worth it?

For most buyers, yes. It scores 86/100 against other 1440p monitors, a top-tier result where the class average is around 51.

What stands out on the LG UltraGear OLED GX7 27GX790B?

Its g-sync stands out, a genuinely useful feature if your setup calls for it.

How does it compare to the Odyssey Neo G9?

The Odyssey Neo G9 scores 52/100 versus this one at 86/100, so this is the stronger pick on the spec sheet.