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LG UltraGear 27GX704A vs LG UltraGear 27GX790B

Product A: LG

UltraGear 27GX704A

90 of 172 known
Change LG UltraGear 27GX704A

Compare the LG UltraGear 27GX790B with

Product B: LG

UltraGear 27GX790B

103 of 172 known
Change LG UltraGear 27GX790B

Compare the LG UltraGear 27GX704A with

66 of 164 fields differ

Download CSVDownload JSON
  • 42 different values
  • 24 known for one only
  • 36 the same
  • 62 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Refresh rateA: 240HzB: 540HzUltraGear 27GX790B is 300 Hz higher.
  2. Response timeLower is betterA: 0.03msB: 0.02msUltraGear 27GX790B is 0.01 ms lower.
  3. Power use HDR (EU label)Lower is betterA: 22.5WB: 28.5WUltraGear 27GX704A is 6 W lower.
  4. Brightness (typical, SDR)A: 275nitsB: 335nitsUltraGear 27GX790B is 60 nits higher.
  5. Peak brightness (HDR)A: 1,300nitsB: 1,500nitsUltraGear 27GX790B is 200 nits higher.

Refresh rate per resolution

The best rate over any port. Bars run from 0 to 1200 Hz.

2560 × 1440Native for both
A240Hz
B540Hz
2368 × 1332
ANot listed
B540Hz
1280 × 720
ANot listed
B720Hz

Size, drawn to scale

Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.

Weight

0 to 15 kg

Weight with stand
A7.2kg
B6.8kg
Weight without stand
A4.8kg
B4.3kg
Box weight
A9.9kg
B9.8kg

All 172 fields

Every value links to where we found it.

ALG UltraGear 27GX704A
BLG UltraGear 27GX790B

General

6 of 8 differ
Series
UltraGear OLED1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK title says UltraGear OLED GX7 Gaming Monitor.
UltraGear1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026INFO: Product name UltraGear
Model numbers
27GX704A-B, 27GX704A-B.AUS, 27GX704A-B.AEK, 27GX704A-B.AEU, 27GX704A1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Page title and SKU 27GX704A-B.AEK.EEUK.UK.C. LG Germany lists 27GX704A-B.AEU and the US and Canada pages list 27GX704A-B.AUS. The EPREL model identifier is 27GX704A.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Title 27GX704A-B.AUS.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Model identifier 27GX704A.7Maker product pagelg.com/de/monitore/gaming/27gx704a-bRead 23 October 2026SKU 27GX704A-B.AEU.EEDG.DE.C.
27GX790B-B, 27GX790B-B.AUS, 27GX790B-B.AEU, 27GX790B-B.AEK, 27GX790B-B.AHK1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Regional suffixes from the LG UK, DE, HK and US pages2Maker product pagelg.com/de/monitore/gaming/27gx790b-bRead 30 September 20263Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 20264Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026
GTIN / EAN
195174133026, 8806096600047, 88060965999211Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026EAN 8806096600047 from the UK page data, EAN 8806096599921 from the Germany page data and UPC 195174133026 from the US spec sheet and the Canada page data.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026UPC 195174133026 for the US model 27GX704A-B.AUS.7Maker product pagelg.com/de/monitore/gaming/27gx704a-bRead 23 October 2026Page data lists EAN 8806096599921 for 27GX704A-B.AEU.
195174137055, 8806096678008, 8806096736500, 88060966713131Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 20268806096736500 on this UK page (27GX790B-B.AEK). The DE, HK and US codes come from the other sources2Maker product pagelg.com/de/monitore/gaming/27gx790b-bRead 30 September 2026EAN 8806096678008 for SKU 27GX790B-B.AEU3Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 2026EAN 8806096671313 for SKU 27GX790B-B.AHK4Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026UPC 195174137055
Announced
Not available
December 20258Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026China launch reported 2025-12-10
Status
Available1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK, Germany and Canada pages carry an active status.
Available1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026On sale at 599.98 GBP (list 899.99 GBP) on the date accessed
Predecessor
Not available
LG UltraGear 27GX790A11Reviewrtings.com/monitor/reviews/lg/27gx790b-bRead 30 September 2026RTINGS says the 27GX790B-B is a newer version of the 27GX790A-B with a higher native refresh rate.
Successor
Not available
Not available
Launch price (US)
Not available
$999.9910Press releaselgusnewsroom.com/press-release/the-ultragear-gx7-is-changing-the-game-as-lgs-fastest-and-brightest-oled-gaming-monitor-to-dateRead 30 September 2026January 6, 2026 U.S. rollout announcement: pre-order retail price $999.99.
Launch price (EU)
€59913Press articlepcgameshardware.de/Monitor-Display-Hardware-154105/News/LG-Ultragear-27GX704A-B-OLED-mit-Preissturz-1492408Read 23 October 2026PCGH 2026-01-26 states a manufacturer UVP of 599 euro for Germany, and LG Germany lists 599 euro. The article gives no launch-day price, so 599 is the manufacturer list price and not a verified launch price.
Not available
Markets
US, CA, GB, EU1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026UK page and the LG Germany and Canada pages are active. The US spec sheet covers the US.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026US sheet.7Maker product pagelg.com/de/monitore/gaming/27gx704a-bRead 23 October 2026LG Germany page, status active.
US, DE, GB, HK1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026GB from this page, DE and HK from LG Germany and LG Hong Kong, US from the LG US spec sheet2Maker product pagelg.com/de/monitore/gaming/27gx790b-bRead 30 September 20263Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 20264Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026
Colours
Black1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Page title ends with Black.
Not available
Segment
Gaming1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Sold as an UltraGear gaming monitor.
Gaming1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026

Display

3 of 12 differ
Screen size
26.5in(67.3 cm)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Size 26.5 inch (67.32 cm). LG markets it as 27 inch. The EPREL sheet gives 67.4 cm and 27 inches.
26.5in(67.3 cm)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Size [Inch] 26.5. Marketed as 27-inch
Viewable screen diagonal
26.5in(67.3 cm)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Size 26.5 inch is the panel diagonal. The EPREL screen diagonal is 67.4 cm, which is 26.5 inch.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Screen diagonal 67.4 cm, 27 inch class. Visible screen area 19.4 dm2.
Not available
Native resolution
2560 × 1440px1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Resolution 2560 x 1440.
2560 × 1440px1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Aspect ratio
16:91Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Aspect Ratio 16:9.
16:91Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Pixel density
110.8ppi
110.8ppi
Pixel pitch
0.2292mm1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Pixel Pitch 0.2292 x 0.2292 mm.
0.2292mm1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Active display area
Not available
Not available
Curved
Not available
No8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026Flat format
Curvature radius
Not available
Not available
Screen surface
Glossy1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Key features: Glare panel. The US spec sheet says Glossy OLED Display.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 202627 inch QHD Glossy OLED Display.8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS text: glossy coating.
Matte8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026Standard matte anti-glare. RTINGS also calls the coating matte
Anti-reflection coating
Not available
Not available
Touchscreen
Not available
Not available

Panel

9 of 31 differ
Panel type
WOLED1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Key features and spec table: OLED. The feature text says LG WOLED. RTINGS lists the sub-type as WOLED.8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS review published 2026-04-24: panel type OLED, sub-type WOLED. RTINGS calls it a third-gen WOLED panel. Notebookcheck calls it second-gen, so no panel generation is stored.
WOLED8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026LG Display 4th-Gen WOLED, Primary RGB Tandem
Panel type (as published)
OLED with MLA+1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature heading: OLED with MLA+ (Micro Lens Array+).
Primary RGB Tandem OLED7Press releaselgusnewsroom.com/press-release/lg-unveils-ultragear-evo-redefining-5k-gaming-with-worlds-first-ai-upscaling-technologyRead 30 September 2026QHD Primary RGB Tandem OLED display. Global sales from the opening day of CES 2026
Backlight
None (self-emissive)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026OLED is self-emissive.
None (self-emissive)8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
LG Display9Reviewpcmonitors.info/lg/lg-ultragear-27gx704a-b-240hz-glossy-oled-modelRead 23 October 2026PCMonitors describes a 26.5 inch 2560 x 1440 glossy LG Display WOLED panel.
LG Display8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026
Panel part number
Not available
Not available
Panel generation
Not available
4th Gen8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026
Subpixel layout
Not available
Not available
Colour depth
10bits2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Product Specification: 8-bit/10-bit colour is supported.
10bits5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 20268-bit/ 10-bit color is supported. Method not stated
Colour depth method
Not available
Not available
Displayable colours
1.07 billion1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Color Depth (Number of Colors) 1.07B.
1.07 billion1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Published as 1.07B
sRGB coverage
Not available
Not available
DCI-P3 coverage
98.5%1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Color Gamut (Typ.) DCI-P3 98.5% (CIE1976). The minimum is 90.0% (CIE1976). The typical value is stored.
99.5%3Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 2026Color Gamut (Typ.) DCI-P3 99.5% (CIE1976), Min. 94.0%
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Color Calibrated in Factory: YES.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Special features: Factory Calibrated Yes.
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Claimed Delta E
Not available
Not available
Paper calibration report in box
Not available
Not available
Hardware calibration support
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: hardware calibration through the LG Calibration Studio. Spec table HW Calibration: Ready. The software and a calibration sensor are not in the box.
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Static contrast ratio
1,500,000:11Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Contrast Ratio (Typ.) 1500000:1, the minimum is 1200000:1. Footnote: 1.5m:1 is the contrast ratio at 25% average picture level.
1,500,000:11Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Contrast Ratio (Typ.) 1500000:1, Min. 1200000:1
Brightness (typical, SDR)
275nits1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Brightness (Typ.) 275 cd/m2. Feature text: standard luminosity of 275 nits.
335nits1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Brightness (Typ.) 335 cd/m2, Min. 300 cd/m2
Brightness (maker minimum)
250nits1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Brightness (Min.) 250 cd/m2.
300nits1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026DISPLAY: Brightness (Min.) 300 cd/m². Minimum guaranteed specification, not the lowest brightness setting.
Peak brightness (HDR)
1,300nits1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: peak brightness of 1300 nits. No window size or mode is stated on the page.
1,500nits8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 20261500 nits (1.5% APL)
HDR peak test window
Not available
1.5%8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026Stated as 1.5% APL
Full-screen brightness
Not available
335nits8Reviewtftcentral.co.uk/news/lg-27gx790b-is-unleashed-with-27-540hz-4th-gen-woled-panel-and-720hz-dual-mode-supportRead 30 September 2026335 nits for 100% APL
HDR formats
HDR101Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table HDR 10: YES.
HDR101Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
HDR certification
DisplayHDR True Black 4001Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table VESA DisplayHDR: DisplayHDR 400 TRUE BLACK. Footnote: True Black 400 is at 10% average picture level.
DisplayHDR True Black 5001Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Viewing angle (horizontal)
178°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Viewing Angle (CR 10 or more) 178 degrees right and left.
178°1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Viewing angle (vertical)
178°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Viewing Angle (CR 10 or more) 178 degrees up and down.
178°1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026

Refresh rate and motion

11 of 22 differ
Refresh rate per resolution and port
ALG UltraGear 27GX704A
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 1.4
2560 × 1440Native240Hz240Hz
Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: 27GX704A is capable of up to 240 Hz from HDMI 2.1, so QHD and 240 Hz works over DisplayPort or HDMI. A graphics card with HDMI 2.1 and the included HDMI 2.1 cable are required. Bit depth and DSC use are not stated.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Product Specification: Max Resolution and Recommended Resolution 2560 x 1440 @ 240 Hz. The preset tables list 240.083 Hz for HDMI (Input Compatibility Version 2.1 PC) and for DisplayPort (1.4 and 1.4 with DSC).3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Key features: HDMI x 2, DisplayPort x 1, 240 Hz refresh rate, HDMI FRL as compliant with HDMI 2.1.
BLG UltraGear 27GX790B
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1USB-C
2560 × 1440Native540Hz540HzDSC540HzDSC
2368 × 1332540Hz540Hz540Hz
1280 × 720720Hz720Hz720Hz
Source5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Support Mode pages 24-27: native QHD 540, HD 720 Dual-Mode and 2368×1332@540 in 24.5-inch crop mode. DP/USB-C share one table. QHD 540 recommended timing requires Input Compatibility 1.4(DSC) or 2.1(DSC), including USB-C. HDMI native 540 uses 2.1(PC). 1080p240 and HDMI 4K120 are preset signals, not established maxima.
Max refresh rate
240Hz
720Hz
Max refresh rate at native resolution
240Hz
540Hz
Max refresh rate over DisplayPort
240Hz
540Hz
Max refresh rate over HDMI
240Hz
540Hz
Max refresh rate over USB-C
Not available
540Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Refresh Rate (Max.) 240 Hz. No overclock mode is described.
540Hz1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
Yes4Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026VESA Dual-Mode QHD 540Hz / HD 720Hz
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
FreeSync Premium Pro, G-SYNC Compatible, VESA AdaptiveSync Display, Adaptive-Sync, HDMI VRR1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: NVIDIA G-SYNC Compatible, AMD FreeSync Premium Pro and VESA certified AdaptiveSync. The manual names Adaptive-Sync over DisplayPort and VRR over HDMI.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Game Adjust, Adaptive-Sync/VRR: Supported Interface DisplayPort (Adaptive-Sync), HDMI (VRR). A graphics card that supports G-SYNC or FreeSync is needed.
VESA AdaptiveSync Display, HDMI VRR, FreeSync Premium Pro, G-SYNC Compatible, Adaptive-Sync1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Key Features explicitly says VESA certified AdaptiveSync, NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro. This proves the named VESA certification, separately from generic DP protocol support.5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Adaptive-Sync/VRR section explicitly says supported interfaces DisplayPort(Adaptive-Sync), HDMI(VRR). This backs generic adaptive_sync and hdmi_vrr, not VESA certification.
VRR range per port
Not available
Not available
Low framerate compensation
Not available
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Exact-model maker claim for FreeSync Premium Pro supplies the product tier. AMD official definition supplies its required LFC feature. Compatible GPU/mode conditions apply.13Maker product pageamd.com/en/resources/support-articles/faqs/DH3-013.htmlRead 30 September 2026Official tier definition explicitly includes LFC in FreeSync Premium Pro. Applies when a compatible AMD GPU and supported FreeSync mode are enabled. No all-input VRR-range claim is inferred.
Response time (maker GtG claim)
0.03ms1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Response Time 0.03 ms (GTG).
0.02ms1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Response time (maker MPRT claim)
Not available
Not available
Overdrive settings
Not available
Not available
Motion blur reduction
Not available
Not available
Blur-reduction technology
Not available
Not available
Blur reduction works with VRR
Not available
Not available
Flicker-free (claimed)
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Footnote: LG OLED panels are certified Flicker-Free by UL, certificate A196009.
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Eye-comfort section: LG WOLED panel verified Flicker-Free by UL, certificate A196009. This is a panel-level maker claim, not a claim that VRR flicker never occurs.
Black frame insertion
Not available
Not available

Measured

2 of 12 differ
Input lag at maximum refresh rate
Not available
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
Not available
0.06ms14Reviewchimolog.co/lg-27gx790bRead 8 October 2026Reviewer-purchased Japanese 27GX790B-B, the same marketed model as the catalog regional rows. Dual-Mode at 1280 × 720 and 720 Hz gives a mean of 0.06 ms across 30 grey transitions, measured from 10% to 90%. The text also gives 61 microseconds before rounding. No separate overdrive setting is reported. Native 2560 × 1440 at 540 Hz gives a separate 0.08 ms mean. The optical-sensor and oscilloscope method is linked in the article. These are sample measurements. Regional warranty and bundle claims are not transferred.
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
Not available
249nits9Reviewtomsguide.com/computing/monitors/lg-ultragear-27gx790b-b-reviewRead 30 September 2026249 nits SDR in the Max Brightness mode. Window size not stated. 561 nits HDR on a 10% window
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
Not available
Not available
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

8 of 19 differ
Video inputs
ALG UltraGear 27GX704A
TypeVersionCount
HDMI2.12
DisplayPort1.41
Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: HDMI YES (2ea), DisplayPort YES (1ea), DP version 1.4. The HDMI 2.1 version comes from the accessory row (HDMI cable ver 2.1) and the US spec sheet.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Connection sections cover HDMI and DisplayPort. The Input Compatibility Version setting for HDMI offers 1.4 and 2.1.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026HDMI Yes x 2, HDMI Version: supports FRL as compliant with HDMI 2.1. DisplayPort Yes x 1, DP Version 1.4. Bandwidth in Gbps and HDCP are not stated.
BLG UltraGear 27GX790B
TypeVersionCountDSC
HDMI2.12Not available
DisplayPort2.11Yes
USB-CNot available1Not available
Source1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026HDMI YES(2ea), DisplayPort YES(1ea), DP Version 2.1, USB-C Yes. HDMI 2.1 from the accessory and US spec sheet. DSC per the manual timing table4Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026HDMI Yes x 2, Supports FRL as compliant with HDMI 2.1. DisplayPort Yes x 1, DP Version 2.1. USB Type-C Yes x 15Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026DisplayPort needs DSC for 2560x1440 at 540 Hz (Input Compatibility 1.4(DSC) or 2.1(DSC))
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.1
2.1
Highest DisplayPort version
1.4
2.1
HDMI features
VRR2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adaptive-Sync/VRR: HDMI (VRR).
VRR5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026HDMI (VRR)
USB-C video (DP Alt Mode)
No1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The connectivity list has HDMI, DisplayPort, a USB upstream port and USB downstream ports, and no USB-C port. PCGH also states there is no USB-C with DisplayPort Alt Mode.12Press articlepcgameshardware.de/Monitor-Display-Hardware-154105/News/Gaming-Monitor-LG-Ultragear-OLED-GX7-27GX704A-B-27-Zoll-WQHD-OLED-MLA-240-Hz-guenstig-kaufen-Amazon-Angebot-1536075Read 23 October 2026PCGH article of 2026-05-21 lists 1 DisplayPort 1.4 and 2 HDMI 2.1 and states there is no USB-C with DisplayPort Alt Mode.
Yes5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026DP Alternate Mode (DP over USB-C) are supported via USB-C Port
USB-C power delivered
Not available
5W11Reviewrtings.com/monitor/reviews/lg/27gx790b-bRead 30 September 2026Public Office verdict explicitly says USB-C is limited to 5 W Power Delivery. Detailed test cells are membership-locked and were not used.
Thunderbolt
Not available
Not available
USB upstream ports
ALG UltraGear 27GX704A
ConnectorUSB versionCount
USB-B3.2 Gen 11
Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: USB Upstream Port YES (1ea, ver 3.2 Gen1). The connector is type B, since the box has a USB A to B cable.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026USB Device connection: connect the A-B type USB 3.0 cable of the product to the PC.
BLG UltraGear 27GX790B
ConnectorCount
USB-C1
Source1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026USB Upstream Port YES(via USB-C)
USB downstream hub ports
ALG UltraGear 27GX704A
ConnectorUSB versionCount
USB-A3.2 Gen 12
Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: USB Downstream Port YES (2ea, ver 3.2 Gen1). RTINGS describes two USB-A ports.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026USB Device connection: the USB port on the product functions as a hub.8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS text: small USB hub with two USB-A ports.
BLG UltraGear 27GX790B
ConnectorUSB versionCount
USB-A3.02
Source1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026USB Downstream Port YES(2ea/ver3.0). USB-A per TFTCentral and Tom's Guide
KVM switch
No8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS text says the monitor lacks a KVM switch, apart from a small USB hub with two USB-A ports. Read in Chrome. The measured result cells are for members only and are not used.
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
Not available
Not available
3.5 mm headphone output
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: Headphone output 3-pole (Sound Only). The feature text calls it a 4-pole headphone out, so the pole count conflicts.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Headset Connection section.
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
3.5 mm microphone input
Not available
Yes1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Headphone out 4-pole (Sound+Mic), one combined jack
Optical out
Not available
Not available
Picture in picture
Not available
Not available
Picture by picture
Not available
Not available

Smart features

None of 4 known
Smart platform
Not available
Not available
Wi-Fi
Not available
Not available
Bluetooth
Not available
Not available
Remote control
Not available
Not available

Audio and camera

1 of 5 differ
Speakers
Not available
No14Reviewchimolog.co/lg-27gx790bRead 8 October 2026The exact review lists no built-in speakers. Four-pole headphone output and the power-on buzzer are separate features.
Number of speakers
Not available
Not available
Speaker power per channel
Not available
Not available
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

6 of 15 differ
Stand height adjustment
130mm1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK dimensions with stand are 532.6 mm up and 402.6 mm down, a difference of 130 mm. The manual states 130 mm.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adjusting the Stand Height: Max. 130.0 mm.
130mm5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Max. 130.0 mm
Tilt
Forward5°Backward21°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Display Position Adjustments: Tilt, Height, Swivel and Pivot. The ranges are in the manual.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adjusting the Angle: forward or backward from -5 to 21 degrees. Stored as 5 forward and 21 backward.
Forward5°Backward21°5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026-5 to 21 degrees
Swivel
Left30°Right30°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Display Position Adjustments lists Swivel. The range is in the manual.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adjusting the Angle: 30 degrees to the left or to the right.
Left30°Right30°5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 202630 degrees to the left or to the right
Pivot
Counterclockwise90°Clockwise0°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Display Position Adjustments lists Pivot. The range is in the manual.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Pivot Feature: the monitor rotates 90 degrees counter-clockwise only.
Counterclockwise90°5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 202690 degrees counter-clockwise
Removable stand
Yes2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Wall mount instructions: remove the stand by performing the stand attachment in reverse.
Yes5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Wall mount installation with the stand removed
VESA mount
100 x 1001Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Wall Mountable 100 x 100 mm.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Wall Mount 100 x 100 mm, M4 x L10 screws, 4 screws.
100 x 1001Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
VESA adapter needed
No2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026The wall mount plate is attached directly after the stand is removed. No VESA adapter is mentioned.
Not available
Security lock slot
Yes2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Using the Kensington Lock section. The lock itself is optional and sold separately.
Yes5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026
On-screen menu controls
Joystick, Software1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: On-Screen Display and OnScreen Control for settings and the User Defined Key. The manual describes the joystick button.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026The joystick button at the bottom of the monitor opens and controls the OSD menu. Supported software includes LG Switch and Dual Controller.
Joystick, Buttons5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Product and Button Description, page 9: joystick button and separate Dual mode button.
Desktop software
LG Switch, LG Calibration Studio, Dual Controller2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Supported Software: Monitor Driver, LG Switch, LG Calibration Studio and Dual Controller.
LG Switch5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Software list: Monitor Driver / LG Switch / LG Calibration Studio / Dual Controller
User firmware updates
Not available
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Not available
Yes3Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 2026RGB LED Lighting: Unity Hexagon Lighting
Gaming menu features
Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Features list Black Stabiliser, Dynamic Action Sync, Crosshair and FPS Counter.
Black Stabilizer, Crosshair, FPS Counter, Dynamic Action Sync, User-defined Key, Dual-Mode1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026FEATURES list. Dual-Mode and User-defined Key names from the manual5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026

OLED care

1 of 3 differ
OLED care
OLED Screen Move, OLED Screen Saver, OLED Image Cleaning1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The feature text names OLED Care. The manual lists the three functions.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Settings, General: OLED Screen Move, OLED Screen Saver and OLED Image Cleaning.
OLED Screen Saver, OLED Image Cleaning5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026
Burn-in covered by warranty
Not available
Not available
Burn-in warranty length
Not available
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width605.2Height (lowest)402.6Height (highest)532.6Depth220mm(23.8 × 15.9 to 21 × 8.7 in)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Dimension with Stand (W x H x D) 605.2 x 532.6 x 220 mm (up) and 605.2 x 402.6 x 220 mm (down).2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026With stand 605.2 x 532.6 x 220.0 mm (W x H x D), the highest position.
Width605.2Height (lowest)397.6Height (highest)527.6Depth220mm(23.8 × 15.7 to 20.8 × 8.7 in)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026605.2x527.6x220(Up)/605.2x397.6x220(Down)
Dimensions without stand
Width605.2Height351Depth45.3mm(23.8 × 13.8 × 1.8 in)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Dimension without Stand (W x H x D) 605.2 x 351.0 x 45.3 mm.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Without stand 605.2 x 351.0 x 45.3 mm.
Width605.2Height351Depth51.2mm(23.8 × 13.8 × 2 in)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Stand footprint
Not available
Not available
Weight with stand
7.2kg(15.9 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Weight with Stand 7.2 kg.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026With stand 7.2 kg without packaging.
6.8kg(15 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Weight without stand
4.8kg(10.6 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Weight without Stand 4.8 kg.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Without stand 4.8 kg without packaging.
4.3kg(9.5 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Box dimensions
Width673Height168Depth529mm(26.5 × 6.6 × 20.8 in)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Dimension in Shipping (W x H x D) 673 x 168 x 529 mm.
Width790Height182Depth496mm(31.1 × 7.2 × 19.5 in)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Published as Dimension in Shiping (W x H x D) 790x182x496. Height and depth look swapped, stored as published
Box weight
9.9kg(21.8 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Weight in Shipping 9.9 kg.
9.8kg(21.6 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026

Power

8 of 13 differ
Power supply
External adapter1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power Type External Power (Adapter).4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Power supply type external.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026Power supply type external.
External adapter1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Adapter rating
Not available
110W5Owner's manualgscs-b2c.lge.com/open/downloadFileRead 8 October 2026Printed page 23 names ADS-120QL-19A-3 190110E and MS-Z5790R190-110D0-E adapters with rated output 19 V at 5.79 A. These output ratings corroborate the reviewed adapter. The stored 110 W is the review explicitly published maximum adapter wattage. The monitor 19 V at 5.0 A input rating is separate and is not maximum consumption.14Reviewchimolog.co/lg-27gx790bRead 8 October 2026The reviewed supplied adapter is explicitly described as maximum 110 W with 19.0 V × 5.79 A output. The exact-model maker manual independently gives the same output rating for its two named adapter models. Japanese PSE registration and box contents are not transferred.
Input voltage
100-240 V AC, 50/60 Hz1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power AC Input 100 to 240 V (50/60 Hz). This is the adapter input.
100-240 V AC, 50/60 Hz1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026
Power use (typical)
Not available
25W3Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 2026Power Consumption (Typ.) 25W. Not listed on the UK page
Power use (max)
Not available
46.32W3Maker product pagelg.com/hk_en/monitors/gaming/27gx790b-bRead 30 September 2026Power Consumption (Max.) 46.32W
Power use SDR (EU label)
23.5W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026On mode power demand in SDR 23.5 W.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026On mode power demand SDR 23.5 W.
24.7W6EU energy label (EPREL)eprel.ec.europa.eu/api/products/electronicdisplays/2498871Read 30 September 2026
Power use HDR (EU label)
22.5W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026On mode power demand in HDR 22.5 W.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026On mode power demand HDR 22.5 W.
28.5W6EU energy label (EPREL)eprel.ec.europa.eu/api/products/electronicdisplays/2498871Read 30 September 2026
Standby power
0.5W1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power Consumption (Sleep Mode) less than 0.5 W. The EPREL sheet states 0.5 W.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Standby mode power demand 0.5 W.
0.5W6EU energy label (EPREL)eprel.ec.europa.eu/api/products/electronicdisplays/2498871Read 30 September 2026
Off-mode power
0.3W1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power Consumption (DC Off) less than 0.3 W. The EPREL sheet states 0.3 W.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Off mode power demand 0.3 W.
0.3W6EU energy label (EPREL)eprel.ec.europa.eu/api/products/electronicdisplays/2498871Read 30 September 20260.3 W. The US spec sheet says less than 0.5W
EU energy class SDR
F1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK page links the EU energy label and the product information sheet, class F.5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label class F for SDR.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026Product information sheet dated 2025-11-20: SDR class F.
F6EU energy label (EPREL)eprel.ec.europa.eu/api/products/electronicdisplays/2498871Read 30 September 2026
EU energy class HDR
F1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The product information sheet shows HDR class F.5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label class F for HDR.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026HDR class F.
G6EU energy label (EPREL)eprel.ec.europa.eu/api/products/electronicdisplays/2498871Read 30 September 2026
Energy per 1000 h SDR
24kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label SDR value 24 kWh per 1000 h.
25kWh12EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2498871.svgRead 30 September 2026Published energy label SDR kWh/1000h value, read directly from label.
Energy per 1000 h HDR
23kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label HDR value 23 kWh per 1000 h.
29kWh12EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2498871.svgRead 30 September 2026Published energy label HDR kWh/1000h value, read directly from label.

Certifications

3 of 9 differ
VESA ClearMR
13,0003Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Special features: VESA ClearMR 13000.
21,0004Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Not available
Not available
Low blue light
Hardware1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: LG WOLED is certified by UL for low blue light, platinum. Certificate: Low Blue Light Hardware Solution Platinum V745051.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Special features: Live Color Low Blue Light Yes.
Not available
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
Not available
Other certifications
UL Flicker-Free Display A196009, UL Discomfort Glare Free V563481, UL Low Blue Light Hardware Solution Platinum V7450511Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Footnote with certificate numbers: Flicker-Free Display (OLED) A196009, Discomfort Glare Free V563481 (UGR below 22), Low Blue Light Hardware Solution Platinum V745051.
UL Verified Perfect Black, UL Verified Perfect Color, UL Discomfort Glare Free, UL Eyesafe 3.0 CPF60, UL Eyesafe 3.0 RPF401Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Product highlights and eye-comfort section name these UL verifications for the OLED panel. Discomfort Glare Free V563481 (UGR<22), Eyesafe CPF60 V745354, RPF40 V275741. Panel verifications, not a blanket system certification.

In the box

2 of 2 differ
In the box
Monitor, Power adapter, Power cord, DisplayPort cable, HDMI cable, USB-A to USB-B cable1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Accessory rows: HDMI (ver 2.1), Display Port, USB A to B. The manual says to use the power cord in the package, and it lists two AC/DC adaptor models.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Cabinet and accessories list the three cables.
HDMI cable (ver 2.1), DisplayPort cable (ver 2.1)1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026Published ACCESSORY list names these two included cables. This is the published list, not an assertion of a complete physical inventory.
Cables included
ALG UltraGear 27GX704A
Type
DisplayPort cable
HDMI cable
USB-A to USB-B cable
Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Accessory rows: HDMI (ver 2.1), Display Port, USB A to B. Counts are not stated. The US spec sheet lists the same three cables.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Cabinet and accessories: Display Port Cable Yes, HDMI Cable Yes (Ver 2.1), USB A to B Cable Yes.
BLG UltraGear 27GX790B
Type
HDMI (ver 2.1)
DisplayPort (ver 2.1)
Source1Maker product pagelg.com/uk/monitors/gaming/27gx790b-bRead 30 September 2026ACCESSORY: HDMI YES (ver 2.1), Display Port YES (ver 2.1)

Warranty

0 of 2 differ
Manufacturer warranty (source market)
2years3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Limited Warranty 2-Year Parts and Labor, US. The EPREL sheet gives 1 year as the general guarantee in the EU.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Minimum duration of the general guarantee offered by the supplier is 1 year in the EU.
2years4Maker spec sheet (PDF)files.bbystatic.com/YZOOI7fCZc/T/bYmkv5jCA==/f3cd232b-3198-4b7a-9903-5aed19b96302.pdfRead 30 September 2026Limited Warranty 2 Year Parts and Labor. Market: US
Dead pixel policy
Not available
Not available

Both are also in the API. Back to all monitors.