Monitors / Compare
ASUS ROG Strix OLED XG27AQDMG vs LG UltraGear 34GX90SA
Product A: ASUS
106 of 172 known
Change ASUS ROG Strix OLED XG27AQDMG
Compare the LG UltraGear 34GX90SA with
Product B: LG
103 of 172 known
Change LG UltraGear 34GX90SA
Compare the ASUS ROG Strix OLED XG27AQDMG with
88 of 164 fields differ
- 42 different values
- 46 known for one only
- 34 the same
- 42 missing for both
Biggest differences
Each bar uses the scale of all 179 monitors.
- Standby powerLower is betterA: 0.3WB: 0.5WASUS is 0.2 W lower.
- Power use HDR (EU label)Lower is betterA: 25.5WB: 38.9WASUS is 13.4 W lower.
- Power use SDR (EU label)Lower is betterA: 24.4WB: 32.3WASUS is 7.9 W lower.
Refresh rate per resolution
The best rate over any port. Bars run from 0 to 1200 Hz.
3440 × 1440Native for B
ANot listed
B240Hz
2560 × 1440Native for A
A240Hz
BNot listed
Size, drawn to scale
Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.
- AASUS: 605 × 368 mm
- BLG: 784.1 × 358.3 mm
Weight
0 to 15 kg
Weight with stand
A6.7kg
B10.4kg
Weight without stand
A4.2kg
B6.2kg
Box weight
A9.5kg
B15.5kg
All 172 fields
Every value links to where we found it.


General
5 of 8 differ
Series
Model numbers
GTIN / EAN
Not available
Announced
Not available
Status
Not available
Predecessor
Not available
Not available
Successor
ASUS ROG Strix OLED XG27AQDMG Gen213Reviewnotebookcheck.net/Asus-ROG-Strix-OLED-XG27AQDMG-Gen-2-arrives-with-upgraded-TrueBlack-Glossy-WOLED-display-and-1300-nits-peak-brightness.1248673.0.htmlRead 23 October 2026Notebookcheck says the XG27AQDMG Gen 2 (XG27AQDMGR) brings three major upgrades over its predecessor, the XG27AQDMG.14Reviewtftcentral.co.uk/reviews/asus-rog-strix-xg27aqdmg-gen-2Read 23 October 2026TFTCentral calls the XG27AQDMG Gen 2 an update to the XG27AQDMG.
Not available
Launch price (US)
Launch price (EU)
Not available
Not available
Markets
Not available
Not available
Colours
Not available
Display
11 of 12 differ
Screen size
Viewable screen diagonal
26.5in(67.3 cm)3Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmgRead 5 October 2026
Not available
Native resolution
Aspect ratio
Pixel density
108.8ppi
109.7ppi
Pixel pitch
Not available
Active display area
Not available
Curved
Curvature radius
Not available
Screen surface
Not available
Anti-reflection coating
Touchscreen
Not available
Not available
Panel
10 of 31 differ
Panel type
Panel type (as published)
Backlight
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
LG Display5Reviewpcworld.com/article/2351497/asus-rog-strix-xg27aqdmg-review.htmlRead 5 October 2026
Not available
Panel part number
Not available
Not available
Panel generation
Not available
Subpixel layout
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
Claimed Delta E
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Static contrast ratio
Brightness (typical, SDR)
Not available
Brightness (maker minimum)
Not available
Peak brightness (HDR)
HDR peak test window
Not available
Full-screen brightness
Not available
HDR formats
HDR certification
Viewing angle (horizontal)
Refresh rate and motion
8 of 22 differ
Refresh rate per resolution and port
AASUS ROG Strix OLED XG27AQDMG
| Resolution | HDMI 2.0 | DisplayPort 1.4 |
|---|---|---|
| 2560 × 1440Native | 144Hz | 240Hz |
BLG UltraGear 34GX90SA
| Resolution | HDMI 2.1 | DisplayPort 1.4 | USB-C |
|---|---|---|---|
| 3440 × 1440Native | 240Hz | 240HzDSC | 240HzDSC |
Max refresh rate
240Hz
240Hz
Max refresh rate at native resolution
240Hz
240Hz
Max refresh rate over DisplayPort
240Hz
240Hz
Max refresh rate over HDMI
144Hz
240Hz
Max refresh rate over USB-C
Not available
240Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
Not available
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
FreeSync Premium, G-SYNC Compatible, VESA AdaptiveSync Display1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/specRead 5 October 2026
FreeSync Premium, G-SYNC Compatible, VESA AdaptiveSync Display1Maker product pagelg.com/us/monitors/lg-34gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 34GX90SA-W AllInfo names FreeSync Premium, G-SYNC Compatible and VESA Adaptive Sync. No native G-SYNC module or FreeSync Premium Pro is inferred.
VRR range per port
AASUS ROG Strix OLED XG27AQDMG
| Input | Min (Hz) | Max (Hz) |
|---|---|---|
| HDMI | 40 | 144 |
| DisplayPort | 40 | 240 |
BLG UltraGear 34GX90SA
Not availableLow 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
Blur-reduction technology
Not available
Blur reduction works with VRR
Not available
Flicker-free (claimed)
Measured
2 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)
HDR brightness in a real scene (measured)
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
11 of 19 differ
Video inputs
AASUS ROG Strix OLED XG27AQDMG
| Type | Version | Count | DSC |
|---|---|---|---|
| DisplayPort | 1.4 | 1 | Yes |
| HDMI | 2.0 | 2 | Not available |
BLG UltraGear 34GX90SA
| 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 |
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.0
2.1
Highest DisplayPort version
1.4
1.4
HDMI features
Not available
Not available
USB-C video (DP Alt Mode)
USB-C power delivered
Not available
Thunderbolt
Not available
Not available
USB upstream ports
AASUS ROG Strix OLED XG27AQDMG
| Connector | USB version | Count |
|---|---|---|
| USB-B | 3.0 | 1 |
USB downstream hub ports
AASUS ROG Strix OLED XG27AQDMG
| Connector | USB version | Count |
|---|---|---|
| USB-A | 3.2 Gen 1 | 2 |
BLG UltraGear 34GX90SA
| Connector | USB version | Count |
|---|---|---|
| USB-A | 2.0 | 2 |
Daisy chain (MST)
Not available
Ethernet
3.5 mm headphone output
3.5 mm microphone input
Optical out
Picture in picture
Not available
Smart features
3 of 4 differ
Smart platform
Not available
Wi-Fi
Not available
Bluetooth
Not available
Not available
Audio and camera
4 of 5 differ
Speakers
Number of speakers
Not available
Not available
Speaker power per channel
Not available
Webcam
Not available
Ergonomics and controls
9 of 15 differ
Stand height adjustment
Tilt
Swivel
Pivot
Counterclockwise90°Clockwise90°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/specRead 5 October 2026
Not available
Removable stand
VESA mount
VESA adapter needed
Security lock slot
On-screen menu controls
Desktop software
ASUS DisplayWidget Center1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/specRead 5 October 2026
Not available
User firmware updates
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Gaming menu features
GamePlus, GameVisual, Shadow Boost2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026
Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter1Maker product pagelg.com/us/monitors/lg-34gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 34GX90SA-W AllInfo named gaming functions. No AI feature from another generation is imported.
OLED care
3 of 3 differ
OLED care
Screen Saver, Pixel Cleaning, Screen Move, Adjust Logo Brightness2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026
Not available
Burn-in covered by warranty
Not available
Dimensions and weight
6 of 7 differ
Dimensions with stand
Width605Height (lowest)388Height (highest)508Depth219mm(23.8 × 15.3 to 20 × 8.6 in)2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026Specifications 3-14 gives 605 x (388-508) x 219 mm. Endpoints match 120 mm stand travel.
Width784.1Height (lowest)470.4Height (highest)580.4Depth291.8mm(30.9 × 18.5 to 22.9 × 11.5 in)4Maker product pagelg.com/uk/monitors/gaming/34gx90sa-wRead 5 October 2026Exact UP and DOWN stand positions. Maximum independently agrees with manual page 18. No minimum height is calculated from travel.
Dimensions without stand
Width605Height368Depth50mm(23.8 × 14.5 × 2 in)2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026
Width784.1Height358.3Depth167.1mm(30.9 × 14.1 × 6.6 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.
Stand footprint
Not available
Not available
Weight with stand
Weight without stand
Box dimensions
Width673Height440Depth220mm(26.5 × 17.3 × 8.7 in)2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026
Width927Height295Depth550mm(36.5 × 11.6 × 21.7 in)4Maker product pagelg.com/uk/monitors/gaming/34gx90sa-wRead 5 October 2026Exact shipping W x H x D. Flat-packed box orientation is retained.
Box weight
Power
10 of 13 differ
Power supply
Adapter rating
Input voltage
Power use (typical)
Not available
Power use (max)
Not available
Not available
Power use SDR (EU label)
Power use HDR (EU label)
Standby power
0.3W2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026Original manual printed p 3-14 states power saving <0.5 W. This upper bound is not stored as an exact demand. The current EU EPREL fiche declares the stored standby value 0.3 W.11EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1957748_EN.pdfRead 8 October 2026Exact-model EU fiche declares standby demand 0.3 W. This is the regulatory declared value, not a reviewer measurement. Original manual printed p 3-14 states the compatible upper bound <0.5 W.
Off-mode power
0.2W2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026Original manual printed p 3-14 states power off <0.3 W. This upper bound is not stored as an exact demand. The current EU EPREL fiche declares the stored off-mode value 0.2 W.11EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1957748_EN.pdfRead 8 October 2026Exact-model EU fiche declares off-mode demand 0.2 W. This is the regulatory declared value, not a reviewer measurement. Original manual printed p 3-14 states the compatible upper bound <0.3 W.
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
TÜV certifications
Flicker-free, Low Blue Light (Hardware Solution)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/specRead 5 October 2026
Not available
Low blue light
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
Not available
Other certifications
Not available
UL Flicker-Free Display A196009, UL Discomfort Glare Free V563481, UL Low Blue Light Hardware Solution Platinum V7450514Maker product pagelg.com/uk/monitors/gaming/34gx90sa-wRead 5 October 2026Exact feature certificate footnote. Discomfort Glare Free V563481 uses UGR < 22.
In the box
2 of 2 differ
In the box
DisplayPort cable, HDMI cable, Microfiber cloth, Power adapter, Power cord, Quick start guide, ROG pouch, ROG sticker, USB 3.2 cable, VESA mount kit, Warranty Card1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/specRead 5 October 2026Global accessories list, expressly varies by region. Cable counts are not inferred.
Monitor, Stand, AC/DC adapter, HDMI cable, DisplayPort cable, USB-C cable, Remote control1Maker product pagelg.com/us/monitors/lg-34gx90sa-w-gaming-monitorRead 5 October 2026Exact U.S. 34GX90SA-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.
Cables included
AASUS ROG Strix OLED XG27AQDMG
| Type |
|---|
| DisplayPort cable |
| HDMI cable |
| Power cord |
| USB 3.2 cable |
BLG UltraGear 34GX90SA
Not availableWarranty
1 of 2 differ
Manufacturer warranty (source market)
Dead pixel policy
Not available
Not available
Links
Not compared
Product page
Spec sheet
rog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/spec1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-oled-xg27aqdmg/specRead 5 October 2026
www.lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdf5Maker spec sheet (PDF)lg.com/content/dam/channel/wcms/jp/catalog/pdf/202503_monitor_ultragear.pdfRead 5 October 2026March 2025 maker technical catalogue, PDF page 4, printed pages 5-6. Only the exact 34GX90SA-W column is used.
Manual
dlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdf2Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27AQDMG/ASUS_XG27AQDMG_UM_English.pdfRead 8 October 2026
gscs-b2c.lge.com/downloadFile3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Exact-model English manual linked by U.S. support. The ZIP contains ENG_US.pdf and separate safety information. Both 34GX90SA and 39GX90SA are named on its cover. The manual date is not product retail availability.
Both are also in the API. Back to all monitors.

















