Monitors / Compare
LG UltraGear 39GX90SA vs LG UltraGear evo GX9 39GX950B
Product A: LG
86 of 172 known
Dell Alienware AW3926QW
Samsung Odyssey OLED G7 G73SH
LG UltraGear 45GX950A
ASUS ROG Swift OLED PG32UCWM
LG UltraGear 45GX90SA
ASUS ROG Strix OLED XG32UQWMS
ASUS ROG Strix OLED XG27AQDMG Gen2
LG UltraGear 34GX90SA
ASUS ROG Swift OLED PG27UCWM
Sony INZONE M10S II
LG UltraGear 27GX704A
ASUS ROG Swift OLED PG42UQ
Change LG UltraGear 39GX90SA
Compare the LG UltraGear evo GX9 39GX950B with
Dell Alienware AW3926QW
Samsung Odyssey OLED G7 G73SH
LG UltraGear 45GX950A
ASUS ROG Swift OLED PG32UCWM
LG UltraGear 45GX90SA
ASUS ROG Strix OLED XG32UQWMS
ASUS ROG Strix OLED XG27AQDMG Gen2
LG UltraGear 34GX90SA
ASUS ROG Swift OLED PG27UCWM
Sony INZONE M10S II
LG UltraGear 27GX704A
ASUS ROG Swift OLED PG42UQProduct B: LG
104 of 172 known
Change LG UltraGear evo GX9 39GX950B
Compare the LG UltraGear 39GX90SA with
63 of 164 fields differ
- 33 different values
- 30 known for one only
- 42 the same
- 59 missing for both
Biggest differences
Each bar uses the scale of all 179 monitors.
- Pixel densityA: 95.6ppiB: 142.5ppiUltraGear evo GX9 39GX950B is 46.9 ppi higher.
- Refresh rateA: 240HzB: 165HzUltraGear 39GX90SA is 75 Hz higher.
- ContrastA: 1,500,000:1B: 1,850,000:1UltraGear evo GX9 39GX950B is 1.2 times higher.
- Brightness (typical, SDR)A: 275nitsB: 335nitsUltraGear evo GX9 39GX950B is 60 nits higher.
- Peak brightness (HDR)A: 1,300nitsB: 1,500nitsUltraGear evo GX9 39GX950B is 200 nits higher.
Refresh rate per resolution
The best rate over any port. Bars run from 0 to 1200 Hz.
5120 × 2160Native for B
ANot listed
B165Hz
3840 × 2160
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.
- AUltraGear 39GX90SA: 887.8 × 404.4 mm
- BUltraGear evo GX9 39GX950B: 921.4 × 405 mm
We have no stand height for UltraGear 39GX90SA, so it is drawn without its stand.
Weight
0 to 15 kg
Weight with stand
A11.45kg
B10.7kg
Weight without stand
A7.3kg
B6.8kg
Box weight
A17.5kg
B16.2kg
All 172 fields
Every value links to where we found it.


General
2 of 8 differ
Series
Model numbers
GTIN / EAN
Announced
Not available
Not available
Status
Not available
Not available
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Launch price (EU)
Not available
Not available
Markets
Not available
Not available
Colours
Not available
Not available
Segment
Display
8 of 12 differ
Screen size
Viewable screen diagonal
Not available
Native resolution
Aspect ratio
Pixel density
95.6ppi
142.5ppi
Pixel pitch
Active display area
Not available
Curved
Curvature radius
Screen surface
Not available
Anti-reflection coating
Anti-Glare, Low-Reflection of the front polarizer1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W 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
Panel type (as published)
Backlight
Not available
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
Not available
Panel part number
Not available
Not available
Panel generation
Not available
Subpixel layout
Not available
Not available
Colour depth
Not available
Colour depth method
Not available
Not available
Displayable colours
sRGB coverage
Not available
Not available
DCI-P3 coverage
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Static contrast ratio
Brightness (typical, SDR)
Brightness (maker minimum)
Peak brightness (HDR)
HDR peak test window
Full-screen brightness
Not available
Not available
HDR formats
HDR certification
Viewing angle (horizontal)
Viewing angle (vertical)
Refresh rate and motion
11 of 22 differ
Refresh rate per resolution and port
ALG UltraGear 39GX90SA
| Resolution | HDMI 2.1 | DisplayPort 1.4 | USB-C |
|---|---|---|---|
| 3440 × 1440Native | 240Hz | 240HzDSC | 240HzDSC |
Source2Press releaselg.com/us/press-release/lg-ug-smart-monitor-pr-4-02-2025.pdfRead 5 October 2026Page 2 exact GX9s table lists native 3440 x 1440, maximum 240 Hz and the model names. Footnote 1 expressly requires DisplayPort 1.4 or HDMI 2.1 for up to 240 Hz. Combined text confirms the native maximum for both input families. Manual page 20 requires DP compatibility 1.4 DSC. HDMI requires 2.1 PC mode. Bit depth, chroma and HDMI compression are unstated. Lower-resolution preset rows are not treated as maxima.4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact USB-C Max Resolution at Hz row explicitly states 3440 x 1440 at 240 Hz. Manual page 20 requires compatibility 1.4 DSC. Other port maxima are separately supported by the maker U.S. press sheet, not inferred from preset timing rows.
BLG UltraGear evo GX9 39GX950B
| Resolution | HDMI 2.1 | DisplayPort 2.1 UHBR20 | USB-C |
|---|---|---|---|
| 5120 × 2160Native | 165Hz | 165Hz | 165Hz |
| 3840 × 2160 | 165Hz | 165Hz | 165Hz |
| 2560 × 1080 | 330Hz | 330Hz | 330Hz |
| 1920 × 1080 | 330Hz | 330Hz | 330Hz |
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
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
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-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W 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 39GX90SA
Not availableBLG UltraGear evo GX9 39GX950B
| Input | Min (Hz) | Max (Hz) |
|---|---|---|
| HDMI | 48 | 165 |
| DisplayPort | 48 | 165 |
Low framerate compensation
Response time (maker GtG claim)
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)
Not available
Black frame insertion
Not available
Not available
Measured
1 of 12 differ
Input lag at maximum refresh rate
Not available
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
Not available
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
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
8 of 19 differ
Video inputs
ALG UltraGear 39GX90SA
| Type | Version | Count | DSC | HDCP |
|---|---|---|---|---|
| HDMI | 2.1 | 2 | Not available | Not available |
| DisplayPort | 1.4 | 1 | Yes | 2.3 |
| USB-C | Not available | 1 | Not available | Not available |
BLG UltraGear evo GX9 39GX950B
| Type | Version | Count | Max bandwidth (Gbps) | DSC |
|---|---|---|---|---|
| DisplayPort | 2.1 UHBR20 | 1 | 80 | Yes |
| HDMI | 2.1 | 2 | Not available | Not available |
| USB-C | Not available | 1 | Not available | Yes |
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
USB-C video (DP Alt Mode)
USB-C power delivered
Thunderbolt
Not available
Not available
USB upstream ports
ALG UltraGear 39GX90SA
| Connector | Count |
|---|---|
| USB-C | 1 |
BLG UltraGear evo GX9 39GX950B
| Connector | Count |
|---|---|
| USB-C | 1 |
USB downstream hub ports
ALG UltraGear 39GX90SA
| Connector | USB version | Count |
|---|---|---|
| USB-A | 2.0 | 2 |
BLG UltraGear evo GX9 39GX950B
| Connector | USB version | Count |
|---|---|---|
| USB-A | 3.2 Gen 2 | 2 |
KVM switch
Not available
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
3.5 mm headphone output
3.5 mm microphone input
Not available
Optical out
Not available
Picture in picture
Picture by picture
Smart features
3 of 4 differ
Smart platform
Not available
Wi-Fi
Not available
Bluetooth
Not available
Not available
Audio and camera
1 of 5 differ
Speakers
Number of speakers
Not available
Speaker power per channel
Webcam
Not available
Not available
Microphone
Not available
Not available
Ergonomics and controls
3 of 15 differ
Stand height adjustment
Tilt
Swivel
Pivot
Not available
Not available
Removable stand
VESA mount
VESA adapter needed
Security lock slot
On-screen menu controls
Not available
Desktop software
Not available
User firmware updates
Not available
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Gaming menu features
Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter1Maker product pagelg.com/us/monitors/lg-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W 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
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
Not available
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
Width887.8Height404.4Depth198mm(35 × 15.9 × 7.8 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
Weight without stand
Box dimensions
Width985Height338Depth550mm(38.8 × 13.3 × 21.7 in)4Maker product pagelg.com/es/monitores/monitores-ultragear-gaming/39gx90sa-wRead 5 October 2026Exact shipping W x H x D. The French LG sheet independently agrees.
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
Power
2 of 13 differ
Power supply
Adapter rating
Input voltage
Power use (max)
Not available
Not available
Power use SDR (EU label)
Power use HDR (EU label)
Standby power
Off-mode power
Not available
EU energy class SDR
EU energy class HDR
Energy per 1000 h SDR
Energy per 1000 h HDR
Certifications
3 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
Not available
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
UL Perfect Color V569367, Intertek 100% Color Fidelity 24KRQ0950-02, UL Perfect Reproduction V7567603Maker product pagelg.com/jp/monitors/gaming-monitors/39gx950b-bRead 5 October 2026Own original base-model certificate names. Perfect Color uses 0/500 lux colour fidelity. Perfect Reproduction uses 95% pixel accuracy at 0-500 lux. These are panel claims, not proof of a paper factory report.
Other certifications
Not available
UL Flicker-Free Display A196009, UL Discomfort Glare Free V563481, UL Low Blue Light Hardware Solution Platinum V745051, Eyesafe 3.0 CPF60 V745354, Eyesafe 3.0 RPF40 V275741, UL Perfect Black OLED V1836325Maker product pagelg.com/uk/monitors/ultragear-evo/39gx950b-bRead 5 October 2026Own certificate footnote. Discomfort Glare condition UGR<22, Eyesafe CPF60/RPF40 explicitly named.11Press releaselg.com/us/newsroom/media-entertainment/game-on-lg-kicks-off-pre-orders-for-ultragear-evo-gx9-and-gm9-gaming-monitorsRead 5 October 2026Own 39GX950B-B OLED certificate footnote 5 expressly names UL Perfect Black OLED V183632. This is a black-performance certification, not a measured contrast ratio.
In the box
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-39gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 39GX90SA-W 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)
Dead pixel policy
Not available
Not available
Links
Not compared
Product page
Spec sheet
boulanger.scene7.com/is/content/Boulanger/8806096433102_f_05Maker spec sheet (PDF)boulanger.scene7.com/is/content/Boulanger/8806096433102_f_0Read 5 October 2026Original two-page LG France specification sheet, publicly hosted by Boulanger. Exact 39GX90SA-W. Its copied pivot/body-colour claims and 7.80 kg body weight are excluded in favor of own model manual and current maker table.
www.lg.com/content/dam/channel/wcms/jp/catalog/pdf/202606_monitor_ultragear.pdf4Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202606_monitor_ultragear.pdfRead 5 October 2026Official June 2026 four-page Japanese technical catalogue, fully visually read. Page 4, printed pages 5-6 exact 39GX950B-BAJP column. This is a regional suffix, not a represented variant. Only core hardware facts independently matching own U.S. manual and original Japanese 39GX950B-B table are used. Japanese GTIN, bundle and warranty rows are excluded.
Manual
EPREL registration number
Not available
Not available
Both are also in the API. Back to all monitors.





