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ASUS ROG Strix OLED XG27AQDMG Gen2 vs LG UltraGear evo GX9 39GX950B

Product A: ASUS

ROG Strix OLED XG27AQDMG Gen2

102 of 172 known
Change ASUS ROG Strix OLED XG27AQDMG Gen2

Compare the LG UltraGear evo GX9 39GX950B with

Product B: LG

UltraGear evo GX9 39GX950B

104 of 172 known
Change LG UltraGear evo GX9 39GX950B

Compare the ASUS ROG Strix OLED XG27AQDMG Gen2 with

95 of 164 fields differ

Download CSVDownload JSON
  • 49 different values
  • 46 known for one only
  • 26 the same
  • 43 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Power use (typical)Lower is betterA: 26.8WB: 54WASUS is 27.2 W lower.
  2. Refresh rateA: 240HzB: 165HzASUS is 75 Hz higher.
  3. Pixel densityA: 108.8ppiB: 142.5ppiLG is 33.7 ppi higher.
  4. ContrastA: 1,500,000:1B: 1,850,000:1LG is 1.2 times higher.
  5. Brightness (typical, SDR)A: 275nitsB: 335nitsLG is 60 nits higher.
  6. Peak brightness (HDR)A: 1,300nitsB: 1,500nitsLG is 200 nits higher.

Refresh rate per resolution

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

5120 × 2160Native for B
ANot listed
B165Hz
3840 × 2160
A120Hz
B165Hz
2560 × 1440Native for A
A240Hz
BNot listed
2560 × 1080
ANot listed
B330Hz
1920 × 1080
ANot listed
B330Hz

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
A6.6kg
B10.7kg
Weight without stand
A4.8kg
B6.8kg
Box weight
A8.6kg
B16.2kg

All 172 fields

Every value links to where we found it.

AASUS ROG Strix OLED XG27AQDMG Gen2
BLG UltraGear evo GX9 39GX950B

General

5 of 8 differ
Series
ROG Strix OLED1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
UltraGear evo GX91Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own product title.
Model numbers
XG27AQDMGR, 90LM0CC0-B011B31Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026Current US maker page JSON-LD directly identifies marketed XG27AQDMGR as part 90LM0CC0-B011B3 and links its exact US ASUS store offer. Gen 2 is a separate product from the original XG27AQDMG, which used HDMI 2.0. No 27AQWMG or ACDMS facts are inherited.
39GX950B-B1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own U.S. SKU, matching exact manual cover.
GTIN / EAN
Not available
1951741464911Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Exact own AllInfo Warranty UPC. Regional Japanese JAN code is not inherited.
Announced
Not available
Not available
Status
Available1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Not available
Predecessor
ASUS ROG Strix OLED XG27AQDMG3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026TFTCentral calls the XG27AQDMG Gen 2 an update to the XG27AQDMG.4Reviewnotebookcheck.net/Asus-ROG-Strix-OLED-XG27AQDMG-Gen-2-arrives-with-upgraded-TrueBlack-Glossy-WOLED-display-and-1300-nits-peak-brightness.1248673.0.htmlRead 23 October 2026Notebookcheck says the XG27AQDMG Gen 2 (XG27AQDMGR) brings three major upgrades over its predecessor, the XG27AQDMG.
Not available
Successor
Not available
Not available
Launch price (US)
Not available
$1,799.9911Press releaselg.com/us/newsroom/media-entertainment/game-on-lg-kicks-off-pre-orders-for-ultragear-evo-gx9-and-gm9-gaming-monitorsRead 5 October 2026April 7, 2026 maker U.S. preorder release explicitly own 39GX950B-B $1799.99. Optional warranty extension excluded. Price does not itself prove retail availability.
Launch price (EU)
Not available
Not available
Markets
US1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Not available
Colours
Black2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Not available
Segment
Gaming1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Gaming1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own maker gaming monitor classification.

Display

11 of 12 differ
Screen size
27in(68.6 cm)1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026Maker US JSON-LD description says 27-inch class. Own user guide separately states 26.5-inch panel.
39in(99.1 cm)1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Exact U.S. AllInfo 39-inch class. Japanese own base-model table separately gives precise 38.86-inch viewable panel.
Viewable screen diagonal
26.5in(67.3 cm)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
38.86in(98.7 cm)3Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own original 39GX950B-B technical table precise 38.86-inch panel, corroborated current producer catalogue. U.S. 39-inch class and Spanish 38.6-rounded label are less precise.
Native resolution
2560 × 1440px1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
5120 × 2160px1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own AllInfo native 5120 x 2160. Not older 39-inch WQHD hardware.
Aspect ratio
16:91Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
21:91Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Maker nominal 21:9 class. The exact pixel ratio 64:27 is different.
Pixel density
108.8ppi
142.5ppi
Pixel pitch
Not available
0.1776mm1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own horizontal and vertical 0.1776 mm, independently original Japanese base-model table. Active area 909 x 384 fits this published precision.
Active display area
Width590.42Height333.72mm(23.2 × 13.1 in)1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026Current maker Display Viewing Area explicitly gives 590.42 x 333.72 mm. No pixel pitch or native-image-only rectangle is calculated from these dimensions.
Width909Height384mm(35.8 × 15.1 in)3Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own base-model technical table active 909 x 384 mm. Independent catalogue agrees. These are published whole-mm values, not inferred from pitch.
Curved
No3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own Curved Yes.
Curvature radius
Not available
1,500mm1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 1500R curvature. Fixed, not a bendable screen.
Screen surface
Glossy1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Matte8Reviewtechradar.com/computing/monitors/lg-ultragear-evo-39gx950b-b-reviewRead 5 October 2026Own exact model Design section explicitly matte finish. No numerical reflections or unstated brightness measurement inferred.
Anti-reflection coating
TrueBlack Glossy1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Not available
Touchscreen
Not available
Not available

Panel

13 of 31 differ
Panel type
WOLED1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
WOLED6Reviewrtings.com/monitor/reviews/lg/39gx950b-bRead 5 October 2026Public own 39GX950B-B Differences Between Sizes table explicitly fourth-gen WOLED/Tandem OLED. The old 45-inch row has incorrect bandwidth and is not inherited. Numeric locked results are omitted.
Panel type (as published)
WOLED1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Tandem OLED6Reviewrtings.com/monitor/reviews/lg/39gx950b-bRead 5 October 2026Own public introduction and producer original Japanese page identify Tandem OLED. Not RGB-stripe technology from another monitor using a related panel.
Backlight
None (self-emissive)3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Review explains OLED black-frame insertion rather than a strobed backlight, with no backlight in this self-emissive panel.
None (self-emissive)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 20 expressly says own OLED pixels emit their own light without a backlight.
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
LG Display3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Exact XG27AQDMGR review Key Specs identifies LG.Display WOLED with MLA. Reviewer calls underlying panel Gen 2 while ASUS calls it Third Generation, so a single panel-generation label is omitted.
LG Display7Reviewpcgamer.com/hardware/gaming-monitors/lg-ultragear-evo-gx9-39gx950b-reviewRead 5 October 2026Exact review expressly distinguishes LG Display as panel maker from LG Electronics as monitor maker.
Panel part number
Not available
Not available
Panel generation
Not available
4th-generation Tandem OLED6Reviewrtings.com/monitor/reviews/lg/39gx950b-bRead 5 October 2026Own public 39-inch row, independently original producer Japanese feature. No fifth-generation or Alienware RGB-stripe panel facts inherited.
Subpixel layout
RWBG3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Exact model subpixel section explicitly original RWBG, distinct from newer RGWB panels.
Not available
Colour depth
Not available
Not available
Colour depth method
Not available
Not available
Displayable colours
1.07 billion2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
1.07 billion1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 1.07B. Native/FRC panel method and accepted per-mode input bit depth remain unproved.
sRGB coverage
Not available
Not available
DCI-P3 coverage
99%2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own colour saturation 99% DCI-P3 typical. No measured gamut is substituted.
99.5%1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own DCI-P3 coverage 99.5%, CIE 1976. Not gamut volume or measured coverage.
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Not available
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own Factory Calibration Yes. U.S. paper report not proved and omitted.
Claimed Delta E
Not available
23Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own feature claims ΔE<=2, CIE DE2000 across all 125 Intertek colour-fidelity patterns. Stored upper bound, not measured average or exact equality. Picture preset and calibration procedure unstated.
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own H/W Calibration True Color Pro Yes. Manual calibrated profiles use LG Calibration Studio.
Static contrast ratio
1,500,000:12Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own intrinsic contrast 1.5M:1 typical, not a dynamic or measured ratio.
1,850,000:11Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own static 1850000:1. No finite measured value invented for black OLED pixels.
Brightness (typical, SDR)
275nits2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own Specifications 3-16 explicitly 275 nits typical, separate from 1300-nit HDR peak. No full-white claim is inferred.
335nits1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 335 cd/m² typical SDR. No full-screen mode claim inferred.
Brightness (maker minimum)
Not available
300nits1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 300 cd/m² maker minimum guarantee, not minimum adjustable luminance.
Peak brightness (HDR)
1,300nits2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own Specifications 3-16 explicitly 1300 nits HDR peak. Stimulus, window size and picture mode are not published.
1,500nits1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 1500 cd/m² HDR at 1.5% APL. Separate 600 cd/m² at 10% APL claim is not stored in a real-scene or full-screen field.
HDR peak test window
Not available
1.5%1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 1.5% average picture level. White-window stimulus is not assumed.
Full-screen brightness
Not available
Not available
HDR formats
HDR103Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Console test explicitly verifies HDR10 via Xbox Series X. Dolby Vision is unsupported at the tested time and is not included.
HDR101Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own HDR10 Yes. No other format inferred.
HDR certification
DisplayHDR True Black 4001Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
DisplayHDR True Black 5001Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own DisplayHDR True Black 500, not LCD DisplayHDR 500.
Viewing angle (horizontal)
178°2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
178°1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 178 degrees R/L.
Viewing angle (vertical)
178°2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
178°1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 178 degrees U/D.

Refresh rate and motion

14 of 22 differ
Refresh rate per resolution and port
AASUS ROG Strix OLED XG27AQDMG Gen2
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 1.4
3840 × 2160120HzNot available
2560 × 1440Native240Hz240Hz
Source3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Gaming input-maxima table explicitly native 1440p 240 Hz for DP and HDMI. Console section separately identifies highest accepted virtual 4K input 120 Hz and verifies Xbox Series X HDMI4K120, with downscaling to 1440p. Bit depth, chroma and compression conditions are not stated. Other resolution maxima are omitted.
BLG UltraGear evo GX9 39GX950B
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1 UHBR20USB-C
5120 × 2160Native165Hz165Hz165Hz
3840 × 2160165Hz165Hz165Hz
2560 × 1080330Hz330Hz330Hz
1920 × 1080330Hz330Hz330Hz
Source2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 17 explicitly limits Dual Mode Off (Full Wide) to native 5120 x 2160 at 165 Hz, Off (16:9) to 3840 x 2160 at 165 Hz, On (Full Wide) or On (21:9 34-inch) to 2560 x 1080 at 330 Hz, and On (16:9), On (16:9 27-inch) or On (16:9 24.5-inch) to 1920 x 1080 at 330 Hz. Own HDMI pages 22-23 and combined DisplayPort/USB-C pages 24-25 accept matching signals. The explicit ceilings and input support together establish maxima, rather than presets alone. HDMI native mode requires 2.1(PC). DP native mode supports 2.1 or 1.4 compatibility, with 2.1 DisplayPort only. USB-C needs compatible host/cable and optimized-resolution preference where necessary. Page 25 requires a DSC-capable GPU for preferred timing. Exact per-mode compression, depth and chroma are unstated and omitted.4Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202606_monitor_ultragear.pdfRead 5 October 2026Page 4 connector maximum-resolution table explicitly native 165 Hz for HDMI, DP and USB-C, plus WFHD 330 Hz for HDMI/DP. These original catalogue rows corroborate core hardware. Additional cropped 4K, FHD and USB-C WFHD modes come from explicit ceilings in own U.S. manual page 17 joined to matching input support on pages 22-25. The catalogue native USB-C row does not explicitly exclude lower-resolution Dual Mode. No per-mode bit depth, chroma or compression state inferred.
Max refresh rate
240Hz
330Hz
Max refresh rate at native resolution
240Hz
165Hz
Max refresh rate over DisplayPort
240Hz
165Hz
Max refresh rate over HDMI
240Hz
165Hz
Max refresh rate over USB-C
Not available
165Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own model menu identifies native 2560x1440 240 Hz, independently confirmed by maker description and TFTCentral input maxima. No overclock or faster dual mode is claimed.
165Hz1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 165 Hz at native 5K2K. Faster 330 Hz needs lower-resolution Dual Mode.
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own direct 5K2K 165 / WFHD 330 paired claim and dedicated manual button.
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, G-SYNC Compatible1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026Current maker names generic Adaptive-Sync and G-SYNC Compatible. TFTCentral additionally describes FreeSync Premium Pro and VESA AdaptiveSync certification, but those are absent from the current maker certificate list and remain unconfirmed.
FreeSync Premium Pro, G-SYNC Compatible, VESA AdaptiveSync Display1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own FreeSync Premium Pro, G-SYNC Compatible and VESA Adaptive Sync. Original Japanese base-model feature explicitly VESA AdaptiveSync Display certification. No native G-SYNC module inferred.
VRR range per port
AASUS ROG Strix OLED XG27AQDMG Gen2
InputMin (Hz)Max (Hz)
HDMI48240
DisplayPort48240
Source2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Gaming 3-2 explicitly says Variable Refresh Rate can activate 48-240 Hz on both HDMI and DisplayPort. Dedicated VRR wording, not general scan frequency.
BLG UltraGear evo GX9 39GX950B
InputMin (Hz)Max (Hz)
HDMI48165
DisplayPort48165
Source3Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own table explicitly separates native VRR 48-165 Hz and Dual Mode 48-330 Hz for HDMI/DP. Stored rows describe native Full Wide/Dual Mode off only. Schema cannot distinguish resolution modes. USB-C generic scan range does not prove its VRR interval.
Low framerate compensation
Yes3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026VRR Flicker tests explicitly observe active 48-240 Hz range and LFC below 48 fps with anti-flicker mode Off. Middle/High anti-flicker modes restrict the native range and raise the LFC threshold, so those are not conflated.
Yes13Maker product pageamd.com/en/products/graphics/technologies/freesync.htmlRead 5 October 2026Official AMD makes LFC mandatory for producer-confirmed FreeSync Premium Pro. No unproved input-specific interval inferred.
Response time (maker GtG claim)
0.03ms2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own 0.03 ms GtG claim, with a minor unit typo in the manual. Maker model description independently supplies 0.03 ms. Mean and transition endpoints are unspecified, so it is not a reviewer mean.
0.03ms1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 0.03 ms GtG claim, not mean measured response. Exact setting for this claim is unstated.
Response time (maker MPRT claim)
Not available
Not available
Overdrive settings
Not available
Not available
Motion blur reduction
Yes2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Gaming 3-2 explicitly ELMB requires 120 Hz and VRR off. The HDR chapter separately disables ELMB in HDR.
Not available
Blur-reduction technology
ELMB2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Not available
Blur reduction works with VRR
No2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Not available
Flicker-free (claimed)
Yes1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Yes5Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own Tandem OLED feature explicitly UL Flicker-Free Display A196009. VRR flicker is separate.
Black frame insertion
Yes3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Public blur-reduction table and tests establish ELMB black-frame insertion at 120 Hz only, SDR only, VRR off. A stray XG27AQWMG name in one introductory sentence is excluded. Own-model table and manual independently agree.
Not available

Measured

6 of 12 differ
Input lag at maximum refresh rate
0.167ms3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Public lag_1b.jpg and Lag prose explicitly total display lag 0.167 ms at native 240 Hz, using overall display lag with oscilloscope-response decomposition. Processing-only 0.04 ms is not substituted. Native 1440p 240 is the highest accepted rate. Firmware and connection are unstated.
Not available
Input lag at 60 Hz
2.286ms3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Public lag_1b.jpg explicitly total display lag 2.286 ms at fixed 60 Hz, ELMB off. Same overall-lag methodology. Individual 60 Hz resolution, firmware and connection are not separately stated. ELMB at 120 Hz with 7.857 ms is another condition.
Not available
Average response time (measured)
0.5ms3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Public response_times-1.png explicitly average initial G2G 0.50 ms at 240 Hz, gamma corrected, RGB 10 tolerance, overdrive n/a. This is a reviewer transition mean, distinct from maker 0.03 ms. Firmware, connection and regional part code are unpublished. Exact globally marketed XG27AQDMGR matches the reference, with no material regional hardware variation documented.
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
262nits3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Measured maximum 262 nits in SDR, Uniform Brightness on, Performance power mode, OLED Care settings disabled. Default Racing preset is described in the next section. Luminance is uniform across window sizes. UPRtek MK550T, X-rite i1 Pro 2 / i1 Display Pro Plus and Calman are named instruments. Firmware, connection and regional part code are unpublished.
Not available
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Min48Max240Hz3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Reviewer directly observed active 48-240 Hz VRR range with anti-flicker Off and LFC below 48 fps. Connection and firmware are unstated. This is not the restricted Middle/High anti-flicker range.
Not available
Colour accuracy (measured Delta E)
2.83Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Default Racing preset, native wide gamut, before calibration and with ICC profiles disabled. Public default_racing_2b.png explicitly mean Delta E2000 2.8 against sRGB. DCI-P3 mean 0.9 is a separate reference. Same named review instruments. Firmware and regional part code are unpublished.
Not available
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

11 of 19 differ
Video inputs
AASUS ROG Strix OLED XG27AQDMG Gen2
TypeVersionCountDSC
DisplayPort1.41Yes
HDMI2.12Not available
Source1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026Maker explicitly one DP 1.4 with DSC and two HDMI 2.1 FRL. Raw port bandwidth, HDCP and per-mode HDMI compression are not separately stated.
BLG UltraGear evo GX9 39GX950B
TypeVersionCountMax bandwidth (Gbps)DSC
DisplayPort2.1 UHBR20180Yes
HDMI2.12Not availableNot available
USB-CNot available1Not availableYes
Source1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Own AllInfo DP 2.1 one, HDMI 2.1 two, USB-C one. Japanese original base-model table explicitly DP UHBR20 and public exact 39-inch review table 80 Gbps. Own manual separately proves DP/USB-C DSC capability. API alone does not establish compression. Port-specific HDCP, HDMI bandwidth and USB-C link revision are unproved and omitted.2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 25 combined DisplayPort/USB-C table requires a DSC-capable graphics card for preferred timing and frequency. This proves compression capability on those inputs. It does not identify compression operation, depth or chroma for each stored mode. HDMI compression capability remains unknown.6Reviewrtings.com/monitor/reviews/lg/39gx950b-bRead 5 October 2026Own 39-inch free differences table explicitly UHBR20/80 Gbps. Original producer Japanese base-model UHBR20 confirms. Other product rows and protected port measurements are excluded.
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.1
2.1
Highest DisplayPort version
1.4
2.1 UHBR20
HDMI features
VRR, ALLM, CEC3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Public console table and Xbox Series X check confirm HDMI VRR, ALLM and HDMI-CEC auto-switch. This does not establish the raw link bandwidth.
VRR2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 17 supported interface explicitly HDMI VRR. Other HDMI feature names unproved.
USB-C video (DP Alt Mode)
No2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Complete rear physical inventory has no USB-C port.
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 13 explicitly supports PD and DisplayPort Alternate Mode through USB-C. The adapter powers the monitor itself.
USB-C power delivered
Not available
90W1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 90 W supplied to compatible host. Monitor still needs separate DC adapter.
Thunderbolt
Not available
Not available
USB upstream ports
AASUS ROG Strix OLED XG27AQDMG Gen2
ConnectorUSB versionCount
USB-B3.2 Gen 11
Source2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Rear inventory 1-3 explicitly one USB 3.2 Gen 1 Type-B host port.
BLG UltraGear evo GX9 39GX950B
ConnectorCount
USB-C1
Source1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own USB upstream via USB-C, one socket. Revision unstated in the own U.S. upstream row.
USB downstream hub ports
AASUS ROG Strix OLED XG27AQDMG Gen2
ConnectorUSB versionCount
USB-A3.2 Gen 12
Source1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
BLG UltraGear evo GX9 39GX950B
ConnectorUSB versionCount
USB-A3.2 Gen 22
Source1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own two peripheral ports explicitly USB 3.2 Gen 2. Matching physical Type-A sockets. Manual data speed depends on USB-C preference and compatible host.
KVM switch
No3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Conclusion explicitly identifies absent USB-C, KVM and PiP/PbP.
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
No2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Complete rear inventory has no Ethernet socket.
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Complete own rear connector inventory has only HDMI, DP, USB-C, USB-A, headset and DC. No RJ45.
3.5 mm headphone output
Yes1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Yes3Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own original base-model stereo-mini headset socket. Producer catalogue footnote 5 expressly 3.5 mm, four-pole sound+mic.
3.5 mm microphone input
No2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Complete rear inventory names headphone output and no microphone input.
Yes3Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Same shared four-pole 3.5 mm headset jack, not a separate microphone socket. Manual page 14 requires upstream USB connection to PC for microphone.
Optical out
No2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Complete rear inventory has no optical audio connector.
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Complete own rear connector inventory has no optical audio socket.
Picture in picture
No3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Conclusion explicitly absent PiP support.
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own PIP Yes, manual input-pairing table.
Picture by picture
No3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Conclusion explicitly absent PbP support.
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own PBP Yes, supplementary maker specifies 2PBP.

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

3 of 5 differ
Speakers
No3Measurementtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 8 October 2026Console section explicitly no integrated speakers in exact Gen 2 model.
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Own exact U.S. AllInfo Speaker Yes. Exact TechRadar Design paragraph separately proves two physical internal speakers.
Number of speakers
Not available
28Reviewtechradar.com/computing/monitors/lg-ultragear-evo-39gx950b-b-reviewRead 5 October 2026Exact own-model Design paragraph explicitly states two internal 7 W speakers. This counts physical speakers, rather than inferring count from channels.
Speaker power per channel
Not available
7W3Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own original base-model built-in 7 W+7 W output. No physical driver count inferred.
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

7 of 15 differ
Stand height adjustment
110mm2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
110mm2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct 110 mm maximum stand travel.
Tilt
Forward5°Backward20°2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Forward8°Backward15°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct -8/+15 degrees. Positive directional magnitudes stored.
Swivel
Left45°Right45°2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Left30°Right30°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct 30 degrees left and right.
Pivot
Counterclockwise90°Clockwise90°2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Adjustment diagram 2-1 explicitly shows 90-degree rotation in both directions.
Not available
Removable stand
Yes2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 8 explicitly removes stand before wall mount by reversing assembly.
VESA mount
100 x 1001Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
100 x 1002Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7 exact 100 x 100 rear pattern.
VESA adapter needed
Not available
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 7-9 direct rear bracket attachment. Optional bracket is separate.
Security lock slot
Yes1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 6 own socket and locking cable procedure. Cable optional.
On-screen menu controls
Joystick, Buttons, Software2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Physical controls 1-4 identifies five-way joystick and buttons. Gaming 3-4 explicitly says DisplayWidget Center changes monitor settings with a mouse. Armoury Crate lighting controls are distinct.
Joystick, Buttons, Software2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 9-10 joystick and dedicated Dual Mode button. Printed page 16 personalized-picture software wizard and calibrated profiles alter display settings. Layout-only software is not counted.
Desktop software
ASUS DisplayWidget Center1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
LG Switch, LG Calibration Studio2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 named supported apps, with actual picture wizard and calibrated profiles on 16. Dual Controller data-sharing software is separate.
User firmware updates
Not available
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Yes2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Own controls 1-4 and OLED Care 3-8 describe distance-based Neo Proximity Sensor. This does not establish an ambient-light sensor or webcam.
Not available
RGB lighting
Yes2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Lighting Effect 3-10 explicitly Aura RGB options and Aura Sync.
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own RGB LED Lighting row Unity Hexagon Lighting 2.0. Manual static/cycling colour controls corroborate.
Gaming menu features
FPS Counter, Crosshair, Sniper, Timer, Stopwatch, Display Alignment, Shadow Boost2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter, AI Upscaling, AI Scene Optimization, AI Sound1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own named four features. Crosshair/FPS counter are mutually exclusive per own manual.2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 16-17 name AI Upscaling High/Low/Off, AI Scene Optimization and AI Sound under AI Boost. AI Scene Optimization is available only in Personalized Picture, Gamer 1, Gamer 2, FPS, RTS, Vivid or Max Brightness presets. AI Sound applies to internal speakers and connected headphones. Own April 7 release separately requires at least WFHD source for AI Upscaling. Existing Crosshair and FPS Counter are mutually exclusive.11Press releaselg.com/us/newsroom/media-entertainment/game-on-lg-kicks-off-pre-orders-for-ultragear-evo-gx9-and-gm9-gaming-monitorsRead 5 October 2026Exact 39GX950B-B April 7 release names AI Upscaling, AI Scene Optimization and AI Sound. Footnote 8 requires WFHD or higher source for AI Upscaling. Picture-preset and audio-output conditions come from own manual page 16.

OLED care

3 of 3 differ
OLED care
Screen Saver, Pixel Cleaning, Screen Move, Auto Logo Brightness, Neo Proximity Sensor2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026OLED Care 3-8/3-9 lists these active protection functions. Reminder toggles and usage counters are omitted from this feature list.
Screen Saver, Image Cleaning2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 19 exact two OLED Care controls. Image Cleaning runs approximately 10 minutes after more than 10 minutes use since last cleaning when entering standby/off. No older Screen Move or separate Pixel Cleaning menu inherited.
Burn-in covered by warranty
Yes1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Not available
Burn-in warranty length
3years1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width605Height (lowest)390Height (highest)500Depth188mm(23.8 × 15.4 to 19.7 × 7.4 in)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Specifications 3-16 explicitly labels highest 500 mm and lowest 390 mm. Their difference agrees with 110 mm travel.
Width921.4Height (lowest)495.4Height (highest)605.4Depth322.8mm(36.3 × 19.5 to 23.8 × 12.7 in)5Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own exact UP/DOWN metric positions. Own U.S. manual page 21 corroborates upper position. No minimum height computed from travel.
Dimensions without stand
Width605Height368Depth63mm(23.8 × 14.5 × 2.5 in)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Specifications 3-16 explicitly 605x368x63 mm for VESA use.
Width921.4Height405Depth118.7mm(36.3 × 15.9 × 4.7 in)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 own direct metric body dimensions. Curved envelope, not flattened active panel span.
Stand footprint
Not available
Not available
Weight with stand
6.6kg(14.6 lb)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Specifications 3-16 estimated net 6.6 kg with stand.
10.7kg(23.6 lb)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 net 10.7 kg with stand, without packaging.
Weight without stand
4.8kg(10.6 lb)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Specifications 3-16 estimated net 4.8 kg without stand.
6.8kg(15 lb)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 net 6.8 kg body, without stand or packaging.
Box dimensions
Width780Height470Depth186mm(30.7 × 18.5 × 7.3 in)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
Width1,035Height296Depth549mm(40.7 × 11.7 × 21.6 in)5Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own maker shipping W x H x D metric. Original Japanese base-model table agrees. Flat-packed orientation retained.
Box weight
8.6kg(19 lb)2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Specifications 3-16 estimated gross 8.6 kg.
16.2kg(35.7 lb)5Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own shipping 16.2 kg, above complete 10.7 kg product. Rounded U.S. 35.7 lb corroborates source rounding.

Power

9 of 13 differ
Power supply
Internal2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Rear inventory 1-3 explicitly AC-IN and setup connects a mains cord directly.
External adapter1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own external adapter.
Adapter rating
Not available
270W2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 two adapter options explicitly 20 V x 13.5 A output, exactly 270 W. Device input 20 V x 12 A, 240 W is separate and not maximum operating consumption.
Input voltage
100-240 V AC, 50/60 Hz2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026
100-240 V AC, 50/60 Hz1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own AC mains range. Not monitor 20 V DC or USB PD input.
Power use (typical)
26.8W2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Specifications 3-16 exact 26.8 W Power ON Consumption with footnote measuring 200 nits and no audio/USB/card-reader connection. Web page publishes <26.8 W without that context. The manual test-conditioned value is retained.
54W4Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202606_monitor_ultragear.pdfRead 5 October 2026Page 4 core 39GX950B column On Mode 54 W. Footnote 8 defines 200 cd/m² one hour measurement video. Original Japanese base-model page also 54 W. EU 40.3 W default 60 Hz test and device 240 W DC input are separate.
Power use (max)
Not available
Not available
Power use SDR (EU label)
Not available
40.3W9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact model English PIS page 2 row 4 EU on-mode SDR, default 60 Hz.
Power use HDR (EU label)
Not available
45.9W9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 6 EU HDR on-mode.
Standby power
0.5W2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Maker upper bound <0.5 W, not an exact measurement.
0.5W9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 8 standby demand. Not network standby.
Off-mode power
0.3W2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Maker upper bound <0.3 W, not an exact measurement.
0.3W9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 7 off demand. Maker less-than qualifier is separate.
EU energy class SDR
Not available
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 3.
EU energy class HDR
Not available
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 5.
Energy per 1000 h SDR
Not available
40kWh10EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact EU label integer 40 read directly, not calculated from decimal 40.3 W.
Energy per 1000 h HDR
Not available
46kWh10EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact EU label integer 46 read directly. Not inherited from SDR.

Certifications

4 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Flicker-free1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026
Not available
Low blue light
Software2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Image 3-5/3-6 provides selectable blue-light filter levels. Hardware certification is not separately established.
Hardware5Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own feature explicitly UL Low Blue Light Hardware Solution Platinum V745051. Reader picture filter is separate.
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
UL Perfect Color V569367, Intertek 100% Color Fidelity 24KRQ0950-02, UL Perfect Reproduction V7567603Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own original base-model certificate names. Perfect Color uses 0/500 lux colour fidelity. Perfect Reproduction uses 95% pixel accuracy at 0-500 lux. These are panel claims, not proof of a paper factory report.
Other certifications
Not available
UL Flicker-Free Display A196009, UL Discomfort Glare Free V563481, UL Low Blue Light Hardware Solution Platinum V745051, Eyesafe 3.0 CPF60 V745354, Eyesafe 3.0 RPF40 V275741, UL Perfect Black OLED V1836325Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own certificate footnote. Discomfort Glare condition UGR<22, Eyesafe CPF60/RPF40 explicitly named.11Press releaselg.com/us/newsroom/media-entertainment/game-on-lg-kicks-off-pre-orders-for-ultragear-evo-gx9-and-gm9-gaming-monitorsRead 5 October 2026Own 39GX950B-B OLED certificate footnote 5 expressly names UL Perfect Black OLED V183632. This is a black-performance certification, not a measured contrast ratio.

In the box

2 of 2 differ
In the box
OLED monitor, Monitor stand, Monitor base, Quick start guide, Warranty card, Power cord, DisplayPort cable, USB Type-B to Type-A cable, ROG wall mount kit, ROG sticker, ROG pouch, Microfiber cloth, Cleaning card2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Package Contents 1-1 lists these items. HDMI cable is optional and is omitted. Wall-mount-kit inclusion does not prove that a separate adapter is required by every mount.
Monitor, Stand, AC/DC adapter, Power cable, HDMI cable, DisplayPort cable, USB-C cable1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own U.S. HDMI, DP and USB-C cable rows, matching core stand/adapter manual assembly. No optional remote, regional paper report or unstated cable counts inferred.
Cables included
AASUS ROG Strix OLED XG27AQDMG Gen2
Type
Power cord
DisplayPort cable
USB Type-B to Type-A cable
Source2Owner's manualbhphotovideo.com/lit_files/1327992.pdfRead 8 October 2026Guaranteed manual list includes these three cable types. Numeric counts are unstated. Optional HDMI cable is omitted.
BLG UltraGear evo GX9 39GX950B
Not available

Warranty

1 of 2 differ
Manufacturer warranty (source market)
3years1Maker product pagerog.asus.com/us/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg-gen2-xg27aqdmgr/specRead 8 October 2026Current US maker warranty directly says three years including panel burn-in.
2years1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own U.S. 2-Year Parts and Labor. Optional two-year LG Premium Care extension in preorder offer is separate. Burn-in-specific coverage is not explicitly proved.
Dead pixel policy
Not available
Not available

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