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LG UltraGear evo GM9 27GM950B vs LG UltraGear evo GX9 39GX950B

Product A: LG

UltraGear evo GM9 27GM950B

97 of 172 known
Change LG UltraGear evo GM9 27GM950B

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 LG UltraGear evo GM9 27GM950B with

63 of 164 fields differ

Download CSVDownload JSON
  • 38 different values
  • 25 known for one only
  • 45 the same
  • 56 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. ContrastA: 1,000:1B: 1,850,000:1UltraGear evo GX9 39GX950B is 1,850 times higher.
  2. Response timeLower is betterA: 1msB: 0.03msUltraGear evo GX9 39GX950B is 0.97 ms lower.
  3. Brightness (typical, SDR)A: 750nitsB: 335nitsUltraGear evo GM9 27GM950B is 415 nits higher.
  4. Pixel densityA: 217.6ppiB: 142.5ppiUltraGear evo GM9 27GM950B is 75.1 ppi higher.
  5. Peak brightness (HDR)A: 1,250nitsB: 1,500nitsUltraGear evo GX9 39GX950B is 250 nits higher.
  6. Power use HDR (EU label)Lower is betterA: 53.5WB: 45.9WUltraGear evo GX9 39GX950B is 7.6 W lower.

Refresh rate per resolution

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

5120 × 2880Native for A
A165Hz
BNot listed
4736 × 2664
A165Hz
BNot listed
5120 × 2160Native for B
ANot listed
B165Hz
3840 × 2160
ANot listed
B165Hz
2560 × 1440
A330Hz
BNot listed
2368 × 1332
A330Hz
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
A8.5kg
B10.7kg
Weight without stand
A5.7kg
B6.8kg
Box weight
A11.9kg
B16.2kg

All 172 fields

Every value links to where we found it.

ALG UltraGear evo GM9 27GM950B
BLG UltraGear evo GX9 39GX950B

General

2 of 8 differ
Series
UltraGear evo GM91Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. product title. This is the LCD Hyper Mini LED family.
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
27GM950B-B1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Exact U.S. SKU, corroborated own 27GM950B manual cover and original 27GM950B-B.AUS sheet.
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
1951741477261Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Exact own U.S. AllInfo UPC, matching original U.S. sheet. Japanese JAN is excluded.
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
Not available
Not available
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
$1,199.998Press releaselg.com/us/press-release/ultragear-gx9-gm9-press-release.pdfRead 5 October 2026Own April 7 maker U.S. release PDF page 1 News Summary expressly $1199.99 for GM9. Later body rounds to $1199. Current maker original MSRP agrees. Preorder price does not prove actual delivered retail date.
$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
Not available
Not available
Colours
Not available
Not available
Segment
Gaming1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own maker gaming-monitor classification.
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

9 of 12 differ
Screen size
27in(68.6 cm)1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. advertised 27-inch size. No more precise viewable diagonal is invented.
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
Not available
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
5120 × 2880px1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own exact AllInfo native 5K. Native panel resolution is distinct from lower-resolution Dual Mode.
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 pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own maker table, matching native pixel ratio.
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
217.6ppi
142.5ppi
Pixel pitch
0.1166mm1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own horizontal and vertical pixel pitch 0.11655 mm. Japanese published whole-mm active area is consistent with rounding.
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
Width597Height336mm(23.5 × 13.2 in)4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own original 27GM950B-B technical table active 597 x 336 mm. Whole-mm published precision is retained. It is not calculated from rounded pitch.
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
No5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact-model front and right-side maker gallery photographs show a flat panel. The side image depicts straight front-screen geometry. No radius or curve is inferred from display size or IPS technology.
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
Matte9Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact concluding paragraph explicitly anti-glare matte finish. Matte plastic chassis alone is not used as screen evidence.
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
Not available
Not available
Touchscreen
Not available
Not available

Panel

17 of 31 differ
Panel type
IPS1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own AllInfo Display Type IPS, independently original U.S. technical sheet.
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)
Not available
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
Mini-LED2Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own Mini-LED Technology Yes and Hyper Mini LED product identity. This is a backlit IPS LCD, not self-emissive OLED.
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
Yes2Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own original U.S. Local Dimming Zone 2304. Exact manual page 20 has adjustable Local Dimming control.
Not available
Dimming zones
2,3042Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own exact Local Dimming Zone row 2304, independently primary release. Physical mini LEDs total 9216 and are not zone count.8Press releaselg.com/us/press-release/ultragear-gx9-gm9-press-release.pdfRead 5 October 2026Own exact GM9 paragraph PDF page 2 separately states 9216 physical mini LEDs and 2304 local dimming zones. Original U.S. sheet agrees.
Not available
Panel maker
Not available
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
Not available
Not available
Colour depth
10bits3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 expressly supports 8-bit/10-bit colour. This proves supported per-channel depth, not native panel method or the bit depth of each maximum-rate mode.
Not available
Colour depth method
Not available
Not available
Displayable colours
1.06 billion1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own literal 1.06B. This is not changed to 1.07B. Native/FRC implementation is unstated.
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%1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own typical DCI-P3 99%, CIE 1976. Coverage, not gamut volume. Minimum 95% on the UK page is a separate guarantee.
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
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Factory Calibration Yes. Physical paper report is not established.
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
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own H/W Calibration True Color Pro Yes, original sheet Ready, and own manual SDR calibrated profiles using LG Calibration Studio. Ordinary ICC calibration is not substituted.
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
1,000:11Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own panel native static 1000:1. Local-dimming dynamic contrast and reviewer prose are separate.
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)
750nits1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own typical SDR 750 cd/m². Window, local-dimming setting and picture preset are unstated.
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)
600nits1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own maker minimum 600 cd/m², not lowest adjustable brightness.
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)
1,250nits1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own peak 1250 cd/m², independently exact UK HDR/DisplayHDR feature. Maker internal test conditions are unstated. No window percentage, real scene or full-screen value inferred.
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
HDR101Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own HDR10 Yes. HDR Effect is SDR processing and is not another accepted HDR format.
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 10001Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own VESA DisplayHDR 1000. This is the LCD certification, not OLED True Black.
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°1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 178 degrees R/L. UK technical table specifies CR at least 10.
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°1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 178 degrees U/D. UK technical table specifies CR at least 10.
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

7 of 22 differ
Refresh rate per resolution and port
ALG UltraGear evo GM9 27GM950B
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1 UHBR20USB-C DisplayPort 1.4 Alt Mode
5120 × 2880Native165Hz165Hz144Hz
4736 × 2664165Hz165Hz144Hz
2560 × 1440330Hz330Hz288Hz
2368 × 1332330Hz330Hz288Hz
Source3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 19 explicitly bounds Dual Mode Off Full Wide native 5120 x 2880 and Off 24.5-inch crop 4736 x 2664 at 165 Hz HDMI/DP or 144 Hz USB-C. Dual Mode On Full Wide 2560 x 1440 and On 24.5-inch crop 2368 x 1332 are bounded at 330 Hz HDMI/DP or 288 Hz USB-C. Own input support tables pages 24-27 accept these matching signals. Explicit per-input ceilings establish maxima, not presets alone. HDMI native requires 2.1(PC), DP native 1.4 or 2.1 and USB-C native 1.4(USB-C) compatibility. Host, cable, USB-C resolution/data preference and GPU performance can affect operation. Per-mode DSC, depth and chroma unstated and 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
330Hz
330Hz
Max refresh rate at native resolution
165Hz
165Hz
Max refresh rate over DisplayPort
165Hz
165Hz
Max refresh rate over HDMI
165Hz
165Hz
Max refresh rate over USB-C
144Hz
165Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
165Hz1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 165 Hz at native 5K on HDMI/DP. USB-C native maximum is separately 144 Hz in current manual.
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
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own explicit 5K 165 Hz / QHD 330 Hz paired mode, with dedicated physical button in manual.
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
G-SYNC Compatible, FreeSync Premium, VESA AdaptiveSync Display1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own exact named G-SYNC Compatible and FreeSync Premium. Original U.S. sheet names VESA Adaptive Sync and VESA Dual-Mode. No FreeSync Premium Pro or native G-SYNC module inherited from erroneous reviewer table.
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
ALG UltraGear evo GM9 27GM950B
Not available
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
Yes11Maker product pageamd.com/en/products/graphics/technologies/freesync.htmlRead 5 October 2026Official AMD makes LFC mandatory for producer-confirmed FreeSync Premium. No unproved per-input VRR interval inferred.
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)
1ms1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 1 ms GtG at Faster overdrive. This is a maker fastest claim, not measured mean or MPRT.
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
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Motion Blur Reduction Technology Yes. Current manual page 19 lists its operating rates.
Not available
Blur-reduction technology
1ms Motion Blur Reduction4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own exact feature name. Manual page 19 requires HDMI/DP 120, 144 or 165 Hz, or USB-C 120/144 Hz before enabling it. No operation at 330/288 Hz, simultaneous VRR or separate MPRT measurement inferred.
Not available
Blur reduction works with VRR
Not available
Not available
Flicker-free (claimed)
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Flicker Safe Yes. Strobing Motion Blur Reduction is a separate selectable mode.
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
Not available
Not available

Measured

None of 12 known
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
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
Not available
Not available
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

7 of 19 differ
Video inputs
ALG UltraGear evo GM9 27GM950B
TypeVersionCount
DisplayPort2.1 UHBR201
HDMI2.12
USB-CDisplayPort 1.4 Alt Mode1
Source2Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own original U.S. Input/Output explicitly DP 2.1 UHBR20 one, HDMI FRL 2.1 two and USB-C DP 1.4 one. No numerical bandwidth, DSC state or port-specific HDCP inferred. UK mislabeled USB-C maximum-resolution row 2.3 is not a rate.
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
2.1 UHBR20
2.1 UHBR20
HDMI features
VRR3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 19 explicitly HDMI VRR supported. Other HDMI feature names are unproved.
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)
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 15 explicitly PD and DP Alternate Mode through USB-C. Monitor power still comes from AC/DC adapter.
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
90W1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 90 W supplied to a compatible host. The monitor requires its separate adapter.
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
ALG UltraGear evo GM9 27GM950B
ConnectorCount
USB-C1
Source1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own USB upstream via USB-C, one socket. USB revision on upstream row unstated.
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
ALG UltraGear evo GM9 27GM950B
ConnectorUSB versionCount
USB-A3.2 Gen 12
Source1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own two peripheral ports, USB 3.2 Gen 1. Original sheet agrees. Current manual page 16 says USB-C to USB-C limits downstream to USB 2.0, while USB-C to USB-A supports USB 3.0 with a compatible host.
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
No9Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact 27GM950B-B review explicitly says no KVM functionality. Incorrect DP 1.4, FreeSync Premium Pro and native-resolution typos in its final table are not inherited.
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
Not available
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
Yes4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own original base-model stereo-mini four-pole headphone/microphone socket. Manual page 16 corroborates shared headset functionality.
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
Yes4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own four-pole stereo-mini socket microphone contacts, not a separate socket. Manual page 16 requires upstream USB connection to PC for microphone function.
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
Not available
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Complete own rear connector inventory has no optical audio socket.
Picture in picture
Not available
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
Not available
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

0 of 5 differ
Speakers
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Speaker Yes. Explicit count is sourced separately from exact reviewer wording.
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
29Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact own-model specification explicitly two 7-watt speakers. This states physical speakers, not merely stereo output channels.
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
7W5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact Speaker 7 W x 2, independently original Japanese 7 W+7 W. Stored per-channel rated output, not 14 W total.
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

4 of 15 differ
Stand height adjustment
130mm3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct stand travel 130 mm. This is not minimum overall height.
110mm2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct 110 mm maximum stand travel.
Tilt
Forward5°Backward21°3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct -5/+21 degrees. Positive directional magnitudes stored.
Forward8°Backward15°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct -8/+15 degrees. Positive directional magnitudes stored.
Swivel
Left30°Right30°3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct 30 degrees left and right.
Left30°Right30°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct 30 degrees left and right.
Pivot
Counterclockwise90°3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 explicitly rotates 90 degrees counterclockwise. Clockwise range is not invented.
Not available
Removable stand
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 8 instructs removing stand before wall mounting by reversing assembly.
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 1003Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7 exact rear wall-mount pattern.
100 x 1002Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7 exact 100 x 100 rear pattern.
VESA adapter needed
No3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 7-9 attach optional wall bracket directly to rear mounting pattern. No separate VESA adapter required.
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 7-9 direct rear bracket attachment. Optional bracket is separate.
Security lock slot
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 6 locking procedure. Kensington cable is optional.
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, Software3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 9-10 show joystick and dedicated Dual Mode button. Page 18 LG Switch Personalized Picture Wizard and calibrated profiles operate display settings. PCWorld separately confirms LG Switch has the same display controls.9Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact control paragraph explicitly LG Switch accesses the same monitor controls. Manual joystick and dedicated button evidence is separate.
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
LG Switch, LG Calibration Studio3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 13 and 18 name actual display-control apps. Dual Controller sharing software is separate from menu control.
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
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Own exact product page expressly instructs downloading LG Switch to install the latest monitor firmware update for picture performance. This is firmware, not only a desktop layout app.
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own RGB LED Lighting Unity Hexagon Lighting. Manual page 21 documents selectable static colours and cycling.
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
Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter, AI Upscaling, AI Scene Optimization, AI Sound1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Own AllInfo expressly names Black Stabilizer, Dynamic Action Sync, Crosshair and FPS Counter. AI Upscaling and AI Sound are own page key features, with full AI Boost menu names and conditions separately sourced to manual pages 18-19 and primary release.3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 18-19 name three AI Boost controls and gaming controls, independently own U.S. table for Dynamic Action Sync. Crosshair and FPS Counter are mutually exclusive. AI Scene Optimization requires Personalized Picture, Gamer 1, Gamer 2, FPS, RTS, Vivid or Max Brightness. AI Sound applies to internal speakers and connected headphones. AI Upscaling minimum input is unresolved: April 7 release footnote 12 and current product-page footnote 3 claim at least WFHD, while current own-page footnote 2 recommends 1080p at 60 Hz and PCWorld directly observed 1080p Nintendo Switch upscaling. Stored feature names do not assert a minimum input resolution.
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

1 of 3 differ
OLED care
Not available
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
Not available
Not available
Burn-in warranty length
Not available
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width615Height (lowest)405Height (highest)535Depth249mm(24.2 × 15.9 to 21.1 × 9.8 in)4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own original base-model table directly states 615 x 405-535 x 249 mm with stand. All dimensions retain this whole-mm source precision and explicitly published minimum/maximum height endpoints. Own U.S. manual and UK 614.5 x 535.3 x 249.1 mm corroborate the rounded upper position. Minimum height is not computed from stand travel. Regional warranty, package cables and Japanese JAN are not inherited.
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
Width614.5Height360.1Depth70mm(24.2 × 14.2 × 2.8 in)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 direct body metrics, independently exact UK table. Rounded inches in early U.S. sheet are not converted.
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
8.5kg(18.7 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 net with stand and without packaging, independently UK and original U.S. rounding.
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
5.7kg(12.6 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 net body without stand/packaging, independently UK.
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
Width811Height166Depth491mm(31.9 × 6.5 × 19.3 in)5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact shipping W x H x D table, matching original Japanese base model. Flat-packed box orientation retained.
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
11.9kg(26.2 lb)5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact shipping 11.9 kg, above complete 8.5 kg product. U.S. original 26.2 lb agrees within source rounding.
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

5 of 13 differ
Power supply
External adapter1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own external AC/DC adapter, independently manual.
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
270W3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 two adapter options each 20 V x 13.5 A output, exactly 270 W. Device rating 20 V x 12 A, 240 W is separate and is not maximum operating consumption.
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 Hz1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own mains input, matching adapter input. Not monitor 20 V DC or USB PD.
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)
Not available
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)
41.6W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 4, EU default 60 Hz on-mode SDR demand. Not native 165 Hz or typical gaming power.
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)
53.5W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 6 HDR on-mode demand.
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
0.5W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 8. Current maker specification is less than 0.5 W. No network standby value invented.
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
0.3W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 7. Current U.S./UK maker less-than 0.3 W qualifier is separate. Early U.S. sheet less-than 0.5 W is less precise.
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
G6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 3 and visually read label.
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 3.
EU energy class HDR
G6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 5 and visually read label.
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 5.
Energy per 1000 h SDR
42kWh7EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact visually read EU label integer 42. Not computed from 41.6 W.
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
54kWh7EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact visually read EU label integer 54, separate from SDR.
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
TÜV Rheinland Anti-blooming Hyper Mini LED8Press releaselg.com/us/press-release/ultragear-gx9-gm9-press-release.pdfRead 5 October 2026Own exact GM9 paragraph PDF page 2 expressly TÜV Rheinland-certified Anti-blooming Hyper Mini LED. Certificate number unstated. Not a low-blue-light or flicker certificate.
Not available
Low blue light
Software3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 18 Reader SDR picture mode, independently Japanese blue-light-reduction feature. No hardware low-blue-light certification is proved.
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

0 of 2 differ
In the box
Monitor, Stand, AC/DC adapter, Power cable, HDMI cable, DisplayPort cable, USB-C cable1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. three cable rows and manual stand/power assembly. Regional cable lengths, report, remote and paper extras are unstated.
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
Not available
Not available

Warranty

1 of 2 differ
Manufacturer warranty (source market)
1year1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. one-year parts and labor. Original U.S. sheet and current manual warranty agree. Japanese three-year warranty and optional two-year Premium Care extension are separate.
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

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