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LG UltraGear 45GX90SA vs LG UltraGear evo GX9 39GX950B

Product A: LG

UltraGear 45GX90SA

101 of 172 known
Change LG UltraGear 45GX90SA

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 45GX90SA with

73 of 164 fields differ

Download CSVDownload JSON
  • 48 different values
  • 25 known for one only
  • 37 the same
  • 54 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Pixel densityA: 83.8ppiB: 142.5ppiUltraGear evo GX9 39GX950B is 58.7 ppi higher.
  2. Refresh rateA: 240HzB: 165HzUltraGear 45GX90SA is 75 Hz higher.
  3. ContrastA: 1,500,000:1B: 1,850,000:1UltraGear evo GX9 39GX950B is 1.2 times higher.
  4. Brightness (typical, SDR)A: 275nitsB: 335nitsUltraGear evo GX9 39GX950B is 60 nits higher.
  5. Peak brightness (HDR)A: 1,300nitsB: 1,500nitsUltraGear evo GX9 39GX950B is 200 nits higher.
  6. Power use SDR (EU label)Lower is betterA: 46.1WB: 40.3WUltraGear evo GX9 39GX950B is 5.8 W lower.
  7. Power use HDR (EU label)Lower is betterA: 52.5WB: 45.9WUltraGear evo GX9 39GX950B is 6.6 W lower.

Refresh rate per resolution

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

5120 × 2160Native for B
ANot listed
B165Hz
3840 × 2160
ANot listed
B165Hz
3440 × 1440Native for A
A240Hz
BNot listed
2560 × 1080
ANot listed
B330Hz
1920 × 1080
ANot listed
B330Hz

Size, drawn to scale

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

Weight

0 to 15 kg

Weight with stand
A13.5kg
B10.7kg
Weight without stand
A8.9kg
B6.8kg
Box weight
A18.9kg
B16.2kg

All 172 fields

Every value links to where we found it.

ALG UltraGear 45GX90SA
BLG UltraGear evo GX9 39GX950B

General

2 of 8 differ
Series
UltraGear OLED1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B product title and gaming category.
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
45GX90SA-B1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B sold model number. Other regions are not represented as variants.
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
1951741151141Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Warranty UPC. European GTINs are not assigned to the U.S. reference.
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)
$1,6992Press releaselg.com/us/press-release/lg-ug-smart-monitor-pr-4-02-2025.pdfRead 5 October 2026Page 1 explicitly names this model and initial U.S. retail price. The publisher states a whole-dollar amount. Later .99 MSRP and sale prices are not substituted.
$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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B gaming monitor category.
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
44.5in(113 cm)1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Screen Size. The 45-inch class uses the published 44.5-inch panel.
39in(99.1 cm)1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Exact U.S. AllInfo 39-inch class. Japanese own base-model table separately gives precise 38.86-inch viewable panel.
Viewable screen diagonal
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
3440 × 1440px1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Native Resolution. This smart model is WQHD, not the 5K2K GX950A.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B maker nominal 21:9 class. The exact 3440:1440 pixel fraction differs from the nominal class.
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
83.8ppi
142.5ppi
Pixel pitch
0.303mm1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo equal horizontal and vertical pixel pitch in mm. Published precision is retained.
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
Width1,042Height436mm(41 × 17.2 in)5Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Exact column active panel area. Curved panel surface width can exceed external body width. Whole-mm source precision is retained.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B 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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Curvature 800R. Fixed curvature, not a bendable panel.
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
Not available
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Surface Treatment. This alone does not establish a matte or glossy classification.
Not available
Touchscreen
Not available
Not available

Panel

13 of 31 differ
Panel type
WOLED4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact-model feature body explicitly names LG WOLED.
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)
WOLED4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact maker technology name.
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)4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026The producer WOLED description identifies a self-emissive OLED, not an LCD 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
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
10bits4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact maker table Colour Bit 10bit. Native versus FRC implementation is unstated and omitted.
Not available
Colour depth method
Not available
Not available
Displayable colours
1.07 billion1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo number of colours 1.07B. Native colour depth method 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
98.5%1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo DCI-P3 98.5% typical, CIE 1976. Not measured coverage or gamut volume.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Factory Calibration Yes. A U.S. paper report is not independently 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
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table HW Calibration No. Calibration Studio is also No. Factory calibration is a separate claim. The U.S. 45-inch True Color Pro feature is inconsistent and not adopted.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo typical 1.5M:1. The feature explanation uses 25% APL. Infinite reviewer contrast has no finite numeric representation.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo typical SDR 275 cd/m². Measured or minimum brightness is separate.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo minimum guaranteed 250 cd/m². This is not the minimum 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)
1,300nits1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo HDR peak 1300 cd/m² at 1.5% average picture level. Not a full-screen or sustained measurement.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo explicitly uses 1.5% APL, not necessarily a white-window percentage.
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/45gx90sa-bRead 5 October 2026Exact feature body states standard luminance 275 nits at 100% APL, separate from peak 1300 nits at 1.5% APL.
Not available
HDR formats
HDR101Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo HDR10 Yes. HDR Effect does not establish 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 True Black 4001Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo DisplayHDR True Black 400. Not the LCD DisplayHDR 400 tier.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo viewing angle R/L at CR >= 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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo viewing angle U/D at CR >= 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

11 of 22 differ
Refresh rate per resolution and port
ALG UltraGear 45GX90SA
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 1.4USB-C
3440 × 1440Native240Hz240HzDSC240HzDSC
Source5Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026Exact connector maximum-resolution table explicitly gives native 3440 x 1440 at 240 Hz separately for HDMI, DisplayPort and USB-C. Manual pages 19-20 require HDMI 2.1 PC mode and DP/USB-C compatibility 1.4 DSC for preferred native 240 Hz. Bit depth, chroma and HDMI compression are unproved and omitted. Lower-resolution preset rows do not establish maxima.
BLG UltraGear evo GX9 39GX950B
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1 UHBR20USB-C
5120 × 2160Native165Hz165Hz165Hz
3840 × 2160165Hz165Hz165Hz
2560 × 1080330Hz330Hz330Hz
1920 × 1080330Hz330Hz330Hz
Source2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 17 explicitly limits Dual Mode Off (Full Wide) to native 5120 x 2160 at 165 Hz, Off (16:9) to 3840 x 2160 at 165 Hz, On (Full Wide) or On (21:9 34-inch) to 2560 x 1080 at 330 Hz, and On (16:9), On (16:9 27-inch) or On (16:9 24.5-inch) to 1920 x 1080 at 330 Hz. Own HDMI pages 22-23 and combined DisplayPort/USB-C pages 24-25 accept matching signals. The explicit ceilings and input support together establish maxima, rather than presets alone. HDMI native mode requires 2.1(PC). DP native mode supports 2.1 or 1.4 compatibility, with 2.1 DisplayPort only. USB-C needs compatible host/cable and optimized-resolution preference where necessary. Page 25 requires a DSC-capable GPU for preferred timing. Exact per-mode compression, depth and chroma are unstated and omitted.4Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202606_monitor_ultragear.pdfRead 5 October 2026Page 4 connector maximum-resolution table explicitly native 165 Hz for HDMI, DP and USB-C, plus WFHD 330 Hz for HDMI/DP. These original catalogue rows corroborate core hardware. Additional cropped 4K, FHD and USB-C WFHD modes come from explicit ceilings in own U.S. manual page 17 joined to matching input support on pages 22-25. The catalogue native USB-C row does not explicitly exclude lower-resolution Dual Mode. No per-mode bit depth, chroma or compression state inferred.
Max refresh rate
240Hz
330Hz
Max refresh rate at native resolution
240Hz
165Hz
Max refresh rate over DisplayPort
240Hz
165Hz
Max refresh rate over HDMI
240Hz
165Hz
Max refresh rate over USB-C
240Hz
165Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo native 240 Hz. No faster dual mode or overclock is inherited.
165Hz1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own 165 Hz at native 5K2K. Faster 330 Hz needs lower-resolution Dual Mode.
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
Yes1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own direct 5K2K 165 / WFHD 330 paired claim and dedicated manual button.
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
FreeSync Premium, G-SYNC Compatible, VESA AdaptiveSync Display1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo names FreeSync Premium, G-SYNC Compatible and VESA Adaptive Sync. No native G-SYNC module or FreeSync Premium Pro is inferred.
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 45GX90SA
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
Yes8Maker product pageamd.com/en/products/graphics/technologies/freesync.htmlRead 5 October 2026AMD officially requires LFC for FreeSync Premium-certified displays. The exact U.S. monitor has that named certification. No port-specific VRR interval is 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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo 0.03 ms GtG at Faster. Not a mean measured transition time.
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
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table Motion Blur Reduction Tech No. Fast OLED transitions do not themselves establish strobing.
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/45gx90sa-bRead 5 October 2026Exact-model feature body names UL Flicker-Free Display certification A196009. Flicker Safe menu No is distinct from panel certification and VRR flicker.
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

9 of 19 differ
Video inputs
ALG UltraGear 45GX90SA
TypeVersionCountDSCHDCP
HDMI2.12Not availableNot available
DisplayPort1.41Yes2.3
USB-CNot available1Not availableNot available
Source1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact AllInfo counts and input versions. Supplementary producer table explicitly DP 1.4 DSC, and AllInfo DP HDCP 2.3. USB-C is a video input via explicit manual Alt Mode. Link bandwidth, HDMI HDCP/DSC and USB-C link revision are unstated.
BLG UltraGear evo GX9 39GX950B
TypeVersionCountMax bandwidth (Gbps)DSC
DisplayPort2.1 UHBR20180Yes
HDMI2.12Not availableNot available
USB-CNot available1Not availableYes
Source1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Own AllInfo DP 2.1 one, HDMI 2.1 two, USB-C one. Japanese original base-model table explicitly DP UHBR20 and public exact 39-inch review table 80 Gbps. Own manual separately proves DP/USB-C DSC capability. API alone does not establish compression. Port-specific HDCP, HDMI bandwidth and USB-C link revision are unproved and omitted.2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 25 combined DisplayPort/USB-C table requires a DSC-capable graphics card for preferred timing and frequency. This proves compression capability on those inputs. It does not identify compression operation, depth or chroma for each stored mode. HDMI compression capability remains unknown.6Reviewrtings.com/monitor/reviews/lg/39gx950b-bRead 5 October 2026Own 39-inch free differences table explicitly UHBR20/80 Gbps. Original producer Japanese base-model UHBR20 confirms. Other product rows and protected port measurements are excluded.
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.1
2.1
Highest DisplayPort version
1.4
2.1 UHBR20
HDMI features
Not available
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 2026Page 14 explicitly supports PD and DisplayPort Alternate Mode at the upstream USB-C port.
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 13 explicitly supports PD and DisplayPort Alternate Mode through USB-C. The adapter powers the monitor itself.
USB-C power delivered
65W1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo USB-C Power Delivery 65 W supplied to a compatible host. The monitor still needs 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 45GX90SA
ConnectorCount
USB-C1
Source1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo one host-facing USB-C connection. Its USB data revision is unstated in the U.S. table.
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 45GX90SA
ConnectorUSB versionCount
USB-A2.02
Source1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo two USB 2.0 downstream ports. Their Type-A connector form is confirmed by the matching product and connector inventory.
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
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table Built-in KVM No. One USB-C upstream may switch peripherals between the smart platform and its host, but this does not establish a two-host hardware KVM.
Not available
Daisy chain (MST)
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table Daisy Chain No.
Not available
Ethernet
Yes1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo LAN Yes. Data bandwidth is not inferred.
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/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table three-pole headphone output, sound only. No microphone contacts.
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
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table Mic In No and three-pole sound-only output.
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
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table SPDIF Optical Digital Audio Out No.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo PIP Yes. Not a KVM function.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo PBP Yes. The supplementary exact-model table specifies two sources.
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

3 of 4 differ
Smart platform
webOS 241Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo explicitly webOS 24. Present services vary by region and subscription.
Not available
Wi-Fi
Wi-Fi 53Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 17 wireless module LGSBWAC23 supports IEEE 802.11a/b/g/n/ac. Wi-Fi 6 in a review is inconsistent with this exact hardware table and is not stored.
Not available
Bluetooth
Not available
Not available
Remote control
Yes1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo accessory Remote Control Yes. The optional Magic Remote for voice recognition is separate.
Not available

Audio and camera

3 of 5 differ
Speakers
Yes1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo Speaker Yes. Output-channel count does not prove a physical driver count.
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
7W4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table 7 W x 2 output channels. No physical driver count is inferred.
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
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table Camera No. The optional external camera is not an installed camera.
Not available
Microphone
No4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact table Mic No. Optional Magic Remote voice recognition does not establish a monitor microphone.
Not available

Ergonomics and controls

6 of 15 differ
Stand height adjustment
120mm1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo stand travel. Independently confirmed by manual page 8.
110mm2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct 110 mm maximum stand travel.
Tilt
Forward1°Backward15°1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo stand angle and manual page 8. Stored as positive directional magnitudes.
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°1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo stand angle and manual page 8. Left and right are positive magnitudes.
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
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 11 explicitly removes the supplied stand before wall mounting by reversing its attachment.
Yes2Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 8 explicitly removes stand before wall mount by reversing assembly.
VESA mount
100 x 1001Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo mounting size, independently confirmed by manual page 10.
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 2026Pages 10-11 show the wall bracket attaching directly to the rear mounting holes. The optional wall bracket is separate.
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 2026Page 9 explains the physical Kensington socket. Its 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, Remote3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Own manual pages 15-16 describe joystick menu control and the included remote Settings and directional menu controls. The optional voice Magic Remote 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
Not available
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo explicitly RGB Hexagon Lighting. Not the power indicator.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo named gaming functions. No AI feature from another generation is imported.
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
Width992.7Height (lowest)541.7Height (highest)661.7Depth338.6mm(39.1 × 21.3 to 26.1 × 13.3 in)4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact UP and DOWN stand positions. Maximum independently agrees with manual page 18. No minimum height is calculated from 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
Width992.7Height457Depth218mm(39.1 × 18 × 8.6 in)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 exact metric body dimensions. W x D x H source axes are correctly mapped. Rounded inch values are not converted back to fabricated 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
13.5kg(29.8 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 own model row, without packaging. US imperial rounding differs in places, so the direct metric value takes precedence.
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
8.9kg(19.6 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Page 18 own model row without stand or packaging.
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
Width1,143Height301Depth550mm(45 × 11.9 × 21.7 in)4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact shipping W x H x D. Flat-packed box orientation is 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
18.9kg(41.7 lb)4Maker product pagelg.com/uk/monitors/gaming/45gx90sa-bRead 5 October 2026Exact shipping weight including packaging. This exceeds product weight.
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

7 of 13 differ
Power supply
External adapter1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo external adapter.
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 2026Page 18 adapter AD10660LF rated output is 20 V x 13.5 A, exactly 270 W. This is adapter capacity, not monitor 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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo mains input, confirmed by manual page 18 adapter input. Not the monitor 20 V 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)
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)
46.1W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 4 EU on-mode SDR power, at default 60 Hz. Not maker typical operating consumption.
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)
52.5W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 6 EU on-mode HDR power. Not a peak power rating.
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-model English page 2 row 8 standby demand. Off mode is n.a. and not inferred as zero.
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
Not available
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
F6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact-model English page 2 row 3.
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-model English page 2 row 5.
G9EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact PIS page 2 row 5.
Energy per 1000 h SDR
46kWh7EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact EU label explicitly prints this integer. Not calculated from the decimal fiche wattage.
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
53kWh7EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact EU label explicitly prints this HDR integer. Independently read, not inherited 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/45gx90sa-bRead 5 October 2026Exact-model feature body names UL Low Blue Light Hardware Solution Platinum V745051. A Reader filter is a separate software setting.
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/45gx90sa-bRead 5 October 2026Exact feature certificate footnote. Discomfort Glare Free V563481 uses UGR < 22.
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, AC/DC adapter, HDMI cable, DisplayPort cable, USB-C cable, Remote control1Maker product pagelg.com/us/monitors/lg-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo cables and included remote, with the monitor, stand and external adapter in the manual. Optional Magic Remote, regional paper report and unstated cable lengths are omitted.
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-45gx90sa-b-gaming-monitorRead 5 October 2026Exact U.S. 45GX90SA-B AllInfo two-year parts and labor warranty and exact U.S. support. EU one-year regulatory guarantee metadata does not replace U.S. terms. Burn-in-specific coverage is not established.
2years1Maker product pagelg.com/us/monitors/lg-39gx950b-b-gaming-monitorRead 5 October 2026Exact U.S. 39GX950B-B AllInfo. Own U.S. 2-Year Parts and Labor. Optional two-year LG Premium Care extension in preorder offer is separate. Burn-in-specific coverage is not explicitly proved.
Dead pixel policy
Not available
Not available

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