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LG UltraGear 45GX950A vs LG UltraGear evo GX9 39GX950B

Product A: LG

UltraGear 45GX950A

110 of 172 known
Change LG UltraGear 45GX950A

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 45GX950A with

55 of 164 fields differ

Download CSVDownload JSON
  • 42 different values
  • 13 known for one only
  • 53 the same
  • 56 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. ContrastA: 1,500,000:1B: 1,850,000:1UltraGear evo GX9 39GX950B is 1.2 times higher.
  2. Power use (typical)Lower is betterA: 66WB: 54WUltraGear evo GX9 39GX950B is 12 W lower.
  3. Brightness (typical, SDR)A: 275nitsB: 335nitsUltraGear evo GX9 39GX950B is 60 nits higher.
  4. Peak brightness (HDR)A: 1,300nitsB: 1,500nitsUltraGear evo GX9 39GX950B is 200 nits higher.
  5. Pixel densityA: 124.9ppiB: 142.5ppiUltraGear evo GX9 39GX950B is 17.6 ppi higher.

Refresh rate per resolution

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

5120 × 2160Native for both
A165Hz
B165Hz
3840 × 2160
ANot listed
B165Hz
2560 × 1080
A330Hz
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
A14kg
B10.7kg
Weight without stand
A9.4kg
B6.8kg
Box weight
A20.5kg
B16.2kg

All 172 fields

Every value links to where we found it.

ALG UltraGear 45GX950A
BLG UltraGear evo GX9 39GX950B

General

2 of 8 differ
Series
UltraGear evo OLED1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact product headline. GX9 family marketing retained only in aliases.
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
45GX950A-B1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact U.S. productData SKU. No regional variants or inherited bundles.
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
1951741158621Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Warranty UPC.
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)
$1,99910Press releaselg.com/us/newsroom/media-entertainment/lg-ultragear-gx9-preorderRead 5 October 2026March 17, 2025 maker release literally USD 1,999 for exact U.S. 45GX950A-B preorder. Current 1999.99 MSRP is not backfilled into maker launch price. Price qualifier rounded publisher integer preserved.
$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-45gx950a-b-gaming-monitorRead 5 October 2026Maker 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

7 of 12 differ
Screen size
44.5in(113 cm)1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Screen Size 44.5 inches, despite 45-inch class title.
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
44.5in(113 cm)3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Exact producer column 44.5-inch 21:9 panel.
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 × 2160px1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Native Resolution 5K2K. Not 3440 x 1440 of older 45-inch panels.
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
21:91Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Maker nominal marketing ratio. Exact 5120:2160 is 64:27, so 21:9 is the producer class label rather than an exact pixel fraction.
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
124.9ppi
142.5ppi
Pixel pitch
0.2035mm1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo equal horizontal/vertical. Producer active 1042 x 440 mm is consistent at published whole-mm precision. No area derived from pitch.
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
Width1,042Height440mm(41 × 17.3 in)3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Exact producer active area 1042 x 440 mm on the curved panel. Body width 991.6 is the published external curved envelope, so it is not required to equal the panel active width. No shift-reserve or flattened span guessed.
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
Yes1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Curved Screen Yes.
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own Curved Yes.
Curvature radius
800mm1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo 800R. Fixed curvature, no motorized bendable range inherited.
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
Matte6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Screen Coating section explicitly matte coating for this exact model.
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
Anti-Glare, Low-Reflection of the front polarizer1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Surface Treatment.
Not available
Touchscreen
Not available
Not available

Panel

11 of 31 differ
Panel type
WOLED6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Exact-model introduction explicitly new WOLED, not QD-OLED or Tandem by assumption.
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)
WOLED6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Exact named panel technology.
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)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 20 explicitly OLED pixels emit their own light without a backlight.
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 Display6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Subpixel section explicitly LG Display developed this new 45-inch panel.
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
RGWB4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Current maker explicitly RGWB subpixel layout, independently confirmed by TechSpot Subpixel section. Generic prior RGBW colour-component terminology is not used as pixel order.6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Subpixel section specifically new RGWB layout, contrasting prior RWBG ultrawide panel.
Not available
Colour depth
10bits2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 supports 8/10-bit. Native/FRC panel method unproved and omitted.
Not available
Colour depth method
Not available
Not available
Displayable colours
1.07 billion1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo 1.07B.
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
98.5%1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo claimed DCI-P3 coverage CIE 1976. TechSpot measured 98% P3/73% Rec 2020 are not stored in claimed gamut fields.
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-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Color Calibrated and Factory Calibration Yes. Physical paper report unknown for U.S. package, not inferred.
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
24Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact maker feature body Delta E<=2 and Others table Delta E<2. Stored upper-bound claim 2 with inequality qualifier, not equality or measurement. Formula/target mode unstated.
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-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo H/W Calibration True Color Pro Yes, manual 16 two calibrated profiles through LG Calibration Studio.
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
1,500,000:11Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo typical 1.5M:1. Measured infinite contrast cannot be stored as finite numeric 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)
275nits1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo typical 275 cd/m². Minimum guaranteed 250 stored separately.
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)
250nits1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo guaranteed minimum 250 cd/m². Not measured lowest adjustable 15 nits.
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)
1,300nits1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo HDR 1300 cd/m² at 1.5% APL. No measured 700/1200 substituted.
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
1.5%1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo explicitly HDR 1.5% APL.
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
275nits4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact maker feature body standard 275 nits at APL 100%, separate from 1300 at APL 1.5%. Not measured 263 full-screen before calibration.
Not available
HDR formats
HDR101Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo HDR10 Yes. No other format inferred.
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 pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo DisplayHDR True Black 400, not LCD DisplayHDR 400.
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-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo CR>=10 R/L.
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-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo CR>=10 U/D.
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

4 of 22 differ
Refresh rate per resolution and port
ALG UltraGear 45GX950A
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1, 1.4USB-C
5120 × 2160Native165Hz10-bit, DSC165Hz10-bit, DSC165Hz
2560 × 1080330Hz330HzNot available
Source3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026PDF page 4 exact connector maximum-resolution table proves native 165 DP/HDMI/USB-C and Dual Mode WFHD 330 Hz DP/HDMI only. USB-C 330 not separately proved and omitted. Manual 17 direct Dual Mode definitions, not preset inference. Native DP/HDMI 10-bit 165 require DSC per exact TechSpot test. DP 1.4 backward native 165+DSC explicitly supported in same review. USB-C native 165 condition optimized screen resolution, manual 19 High Resolution and High Data Speed options, with hub limitations 14. Unknown chroma/USB-C depth/DSC/dual mode depth omitted. Other lower/cropped per-input maxima not inferred from presets/global mode descriptions.5Maker product pagelge.co.kr/product/monitors/45gx950aRead 5 October 2026Exact maximum-resolution section HDMI 2.1/DP 2.1/USB-C each 5120 x 2160 at 165. No 240/480 values from erroneous current JP page row.6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Design and Ports explicitly both DP/HDMI full 5120 x 2160 at 10-bit 165 require DSC. Also explicitly full panel capabilities through backwards-compatible DP 1.4 with DSC. Dual Mode verified 2560 x 1080 at 330, per-input bindings from producer sheet.
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
165Hz
165Hz
Max refresh rate at 10-bit
165Hz
Not available
Native refresh rate
165Hz1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo native 165 Hz. Faster 330 requires lower-resolution Dual Mode. Generic 240 Hz+ flag is not native rate.
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-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Dual Mode 5K2K 165 Hz / WFHD 330 Hz, corroborated manual 17 and exact producer per-input matrix.
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
FreeSync Premium Pro, G-SYNC Compatible, VESA AdaptiveSync Display, HDMI VRR1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo named certifications. HDMI VRR direct manual 17. No native G-SYNC module inferred.2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 17 supported interfaces DP/USB-C Adaptive-Sync and HDMI VRR.
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 45GX950A
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
Yes1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo FreeSync Premium Pro Yes. AMD certification definition separately proves mandatory LFC.9Maker product pageamd.com/en/products/graphics/technologies/freesync.htmlRead 5 October 2026Official AMD FAQ explicitly every FreeSync Premium/Pro-certified display meets mandatory LFC requirements. Maker exact 45GX950A claims Premium Pro. Capability depends on compatible GPU/driver, no port-specific minimum 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)
0.03ms1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo 0.03 ms GtG at Faster. Not mean measured 0.31 ms.
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
Not available
Not available
Blur-reduction technology
Not available
Not available
Blur reduction works with VRR
Not available
Not available
Flicker-free (claimed)
Yes4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact maker panel UL Flicker-Free Display A196009. VRR flicker can still occur, Korean software Flicker Safe X is a different control.
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

3 of 12 differ
Input lag at maximum refresh rate
Not available
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
0.31ms6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Own initial GtG response chart 24-p.png visually read Average Response 0.31 ms at 165 Hz native 5K2K, overdrive N/A. Mean across 110 transitions, not the claimed best 0.03. Firmware/connection not identified, full settling metric not substituted. Faster Dual 330 latency is not inferred from native 165 chart.
Not available
Overshoot (measured)
0.7%6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Same native 165 Hz initial response chart visually Average Error 0.7% in Peak Overshoot panel, not worst 13.2% or Average RGB Error 0.5 unitless. Review says artefacts not visible, not numeric zero.
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
263nits6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Brightness/Contrast before-calibration full-screen maximum 263 nits, uniform brightness behaviour. Default SDR/D65-P3 profile context, exact preset name/firmware not stated and not invented. After-calibration 255 nits is different. Native 165 test context, no HDR value substituted.
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

4 of 19 differ
Video inputs
ALG UltraGear 45GX950A
TypeVersionCountMax bandwidth (Gbps)DSCHDCP
DisplayPort2.1154Yes2.3
HDMI2.1248YesNot available
USB-CNot available1Not availableNot availableNot available
Source1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo DP 2.1 x 1 (DSC), HDMI 2.1 x 2, USB-C x 1, DP HDCP 2.3. Exact TechSpot identifies DP UHBR13.5/54 Gbps and HDMI 48 Gbps with DSC native 10-bit 165. USB-C DP revision/DSC/chroma and HDMI HDCP unknown, omitted. DP80 cable does not prove 80 Gbps input.6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Design and Ports tested DP 2.1 UHBR13.5 54 Gbps, two HDMI 2.1 48 Gbps, USB-C DP Alt Mode PD 90, and DSC requirement 10-bit native 165 on DP/HDMI.
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
2.1 UHBR20
HDMI features
VRR2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 17 explicitly HDMI VRR. Other HDMI features unproved and omitted.
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)
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 13 explicitly PD and DisplayPort Alternate Mode through USB-C. Monitor itself powered from separate adaptor.
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-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo maximum USB-C PD 90 W for compatible host. Not downstream phone charger or monitor DC power input.
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 45GX950A
ConnectorCount
USB-C1
Source1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo one upstream via USB-C. USB revision unknown and omitted. No USB-B socket, despite false U.S. A-to-B accessory row.
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 45GX950A
ConnectorUSB versionCount
USB-A3.02
Source1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo two ports, USB 3.0. Manual 14 says C-C host connection supports USB 2.0 peripherals and C-A connection USB 3.0 when host supports it. Published maximum capability, not unconditional current hub speed.
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
No6Measurementtechspot.com/review/2982-lg-45gx950aRead 5 October 2026Design and Ports expressly says no KVM switch because one USB-C upstream. U.S. generic KVM Yes conflicts with actual inventory/test and manual 14. Software Dual Controller does not make a hardware KVM.
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Complete own rear connector inventory has DP/HDMI/USB-C/A/headset/DC and no RJ45.
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
Yes3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Exact producer four-pole headphone+mic row and footnote 9 expressly 3.5 mm stereo mini plug.
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
Yes3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Same combined four-pole 3.5 mm socket. Manual 14 requires USB-C upstream connected to PC, not a built-in microphone.
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 manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Complete own rear connector inventory has no optical SPDIF, not inherited from older 27GS95QE.
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Complete own rear connector inventory has no optical audio socket.
Picture in picture
Yes1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo PIP Yes and manual 19 input pairing/size controls. Not a hardware KVM.
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
Yes1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo PBP Yes and manual 19 two-input table.
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

2 of 5 differ
Speakers
Yes1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Speaker Yes and matching producer spec matrix. Physical driver count unknown and omitted.
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
10W3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Exact producer built-in speakers 10 W+10 W Rich Bass, KR 10W x 2 channels agrees. Physical driver count unproved, no count inferred from channels.
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
120mm2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct maximum 120 mm.
110mm2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct 110 mm maximum stand travel.
Tilt
Forward10°Backward15°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct -10/+15 degrees.
Forward8°Backward15°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct -8/+15 degrees. Positive directional magnitudes stored.
Swivel
Left10°Right10°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct 10 degrees each direction.
Left30°Right30°2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct 30 degrees left and right.
Pivot
Not available
Not available
Removable stand
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 8 explicit remove stand before VESA plate, reverse 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 1002Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7 mounting table 100 x 100 mm.
100 x 1002Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7 exact 100 x 100 rear pattern.
VESA adapter needed
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7-9 direct wall plate attachment to rear, no intermediate adapter.
No2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 7-9 direct rear bracket attachment. Optional bracket is separate.
Security lock slot
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 6 socket and cable procedure, locking cable 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, Software2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 9-10 joystick and dedicated Dual Mode button. Printed page 16 LG Switch personalized picture wizard and Calibration Studio profiles. No remote inferred.
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 Studio2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Supported software printed page 11 and personalized picture/calibration screen profiles 16. Dual Controller does not count as hardware KVM.
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
Not available
Not available
RGB lighting
Yes1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo Unity Hexagon Lighting. Manual 19 static/cycling settings.
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 Counter1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo game features and manual 17. Crosshair/FPS counter mutually exclusive. No other model AI features inherited.
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
OLED Screen Move, OLED Screen Saver, OLED Image Cleaning2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 19-20 exact OLED care menus. Image cleaning roughly 10 minutes, automatically after four hours. No separate Pixel Cleaning or physical presence/ambient sensor borrowed.
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
Width991.6Height (lowest)545.6Height (highest)665.6Depth342mm(39 × 21.5 to 26.2 × 13.5 in)4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact UP/DOWN metric dimensions. Manual 21 directly maximum 991.6 x 665.6 x 342, KR both agree. Minimum published, not inferred from 120 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
Width991.6Height460.7Depth225.5mm(39 × 18.1 × 8.9 in)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 direct metric curved body envelope. Lower-precision inch partners not converted into more precision.
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
14kg(30.9 lb)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 net 14.0 kg, same KR and UK exact model.
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
9.4kg(20.7 lb)2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 net 9.4 kg, not computed by subtraction.
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
Width1,142Height301Depth564mm(45 × 11.9 × 22.2 in)4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact shipping W x H x D 1142 x 301 x 564 mm. Box orientation different from installed monitor. U.S. 45 x 11.9 x 22.2 in is compatible lower precision.
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
20.5kg(45.2 lb)4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact shipping 20.5 kg, above 14 kg complete product.
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

8 of 13 differ
Power supply
External adapter2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 external ADS-360RLB-20-1 adaptor, 20 V 18 A. Not an internal supply.
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
360W2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 explicit 20.0 V 18.0 A equals 360 W adapter capacity. Device DC input rating also 360 but neither is maximum monitor consumption, which is omitted.
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 manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 21 adaptor AC input 100-240 V, 50/60 Hz. Not 20 V monitor DC input.
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)
66W1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact AllInfo 66 W typical. March producer sheet 66 W On Mode at 200 nits using one hour video in footnote 11. KR 70 W different published condition/value not substituted. EU 44.7 is separate regulatory field.3Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026PDF page 4 exact 66 W On Mode. Footnote 11 at 200 cd/m² one hour video. Korean 70 W and EU 44.7 different named conditions remain separate.
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)
44.7W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2245820_EN.pdfRead 5 October 2026Row 4 EU SDR On Mode.
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)
44.7W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2245820_EN.pdfRead 5 October 2026Row 6 EU HDR On Mode, literal same value independently checked.
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
0.5W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2245820_EN.pdfRead 5 October 2026Row 8 regulatory standby. Producer less-than threshold separate.
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
0.3W7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2245820_EN.pdfRead 5 October 2026Row 7 regulatory off. Producer less-than threshold separate.
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
F7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2245820_EN.pdfRead 5 October 2026Row 3.
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 3.
EU energy class HDR
F7EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2245820_EN.pdfRead 5 October 2026Row 5. Not assumed to be G from other OLED models.
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 5.
Energy per 1000 h SDR
45kWh8EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2245820.pdfRead 5 October 2026Exact label 45 visually inspected, not derived from 44.7 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
45kWh8EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2245820.pdfRead 5 October 2026Exact label 45 visually inspected, separate HDR metric not assumed 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

2 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Not available
Not available
Low blue light
Hardware4Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact maker UL Low Blue Light Hardware Solution Platinum V745051. Reader software filter is separate.
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
UL Flicker-Free Display A196009, UL Discomfort Glare Free V563481, UL Low Blue Light Hardware Solution Platinum V7450514Maker product pagelg.com/uk/monitors/gaming/45gx950a-bRead 5 October 2026Exact model certificate footnote. Discomfort Glare UGR<22 condition. Generic TUV regulatory approval is not an eye-care certificate.
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

1 of 2 differ
In the box
Monitor, Stand body, Stand base, AC/DC adapter, HDMI cable, DisplayPort cable, USB-C cable, Cable cover, Mouse holder1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact U.S. cable/accessory rows, manual core stand/adapter assembly. Door denotes rear cable cover. Generic USB A-to-B Yes rejected because complete inventory has no USB-B. Regional paper report, cable lengths/counts and optional documents not inferred.
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

0 of 2 differ
Manufacturer warranty (source market)
2years1Maker product pagelg.com/us/monitors/lg-45gx950a-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo 2 Year Parts and Labor. Burn-in-specific guarantee unstated and omitted. KR 1 year and JP bright-pixel policy not inherited.
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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