A 34-inch QD-OLED (5th Generation) monitor with a 3440 × 1440 panel and a listed 360 Hz native-resolution mode. Its specified depth with stand is 294.3 mm.
Specifications checked 27 Sept 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
LG 34GX90SA-W in its manufacturer-documented UK configuration. The complete source table retains its published display, connection, software and physical conditions.
Specifications checked 17 Oct 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
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THE DIFFERENCES, MADE VISIBLE
Visual facts
Differences first. Select a topic for its graphic, sources and conditions.
How to read this comparison
Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.
SPECIFICATIONS SIDE BY SIDE5 topics
SELECTED TOPIC
01 / 05
Panel technology
Check the exact configuration and source conditions for your use.
AOC AGP346UCSDQD-OLED (5th Generation)
Manufacturer specification · Manufacturer panel designation; technology alone does not establish tested image quality.
Match the monitor to the connection. Refresh limits depend on the input, cable and source device. Confirm the exact regional ports, stand adjustment and mount. Manufacturer response-time methods such as MPRT and GtG are different; neither the image nor these figures establish an independent motion or colour-quality test.
Manufacturer specification · At the native panel resolution. Manufacturer lists 360 Hz. Available modes depend on input, cable and source. Listed vertical input range: 48~360Hz.
Manufacturer specification · Manufacturer display-table maximum, not a motion index. Input-specific modes/overclocking remain in original source fields. Original: 240
AOC AGP346UCSDHDMI: HDMI 2.1 x 2; DisplayPort: DP 2.1 x 1 (UHBR 20); USB-C connectivity: USB-C (DP Alt, PD 15W) x 1; USB type downstream: 3 x USB3.2 type A Gen 1, 5 Gbit/s (BC1.2x1 yellow); Audio Output: Headphone out (3.5mm)
LG 34GX90SA-Wd-sub: NO; dvi-d: NO; hdmi: YES(2ea); displayport: YES(1ea); dp version: 1.4 (DSC); thunderbolt: NO; usb-c: YES(1ea); usb-c (max. resolution at hz): 3440x1440@240Hz; usb-c (data transsmission): YES; usb-c (power delivery): 65W; daisy chain: NO; usb upstream port: YES(via USB-C); usb downstream port: YES(2ea/ver2.0); built-in kvm: NO; lan (rj-45): YES; spdif out (optical digital audio out): NO; audio in: NO; mic in: NO; headphone output: 3-pole (Sound Only); line out: NO
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer port counts and versions. Confirm source-device support, cable bandwidth and the exact mode; a connector name alone does not guarantee every advertised configuration.
AOC AGP346UCSD811.7 × (421.5–551.2) × 294.3 mm (width × height × depth, with stand)
LG 34GX90SA-Wdimension with stand (w x h x d) [mm]: 784.1x580.4x291.8(UP)/784.1x470.4x291.8(Down)
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
A size or weight trade-off; it does not establish the better product.
Missing or non-comparable evidence (128)
Listed refresh modes and input limits
AOC AGP346UCSD360 Hz
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · At the native panel resolution. Manufacturer lists 360 Hz. Available modes depend on input, cable and source. Listed vertical input range: 48~360Hz.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
USB-C connection
AOC AGP346UCSDYes
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · The listed connections include USB-C or Thunderbolt. Video, data, upstream/downstream roles and charging power depend on the particular port.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
HDR formats / certification
AOC AGP346UCSDVESA Certified DisplayHDR True Black 500
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer-listed HDR formats or certification. This alone does not establish real-scene HDR quality, local dimming or measured peak brightness.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
VESA mounting pattern
AOC AGP346UCSD100x100
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Match the screw pattern, screw dimensions, product weight and mount load rating; the pattern alone does not verify a safe mount.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Brightness modes and window sizes
AOC AGP346UCSD300cd/m² (100% APL) (typical) 515 cd/m²(Typ.) (10% APL) (Peak for HDR) 1300 cd/m²(Typ.) (HDR 3% APL) (Peak for HDR)
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer claims. Full-screen, HDR peak and different APL window sizes are separate conditions, not directly comparable luminance tests.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Colour depth
AOC AGP346UCSDNot verified
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
AOC's UK specification lists 1.073B colours (10 bits), but the page's WQHD feature text says "True 8-bit color". AOC links no user manual for this model, so the disagreement stays unresolved and no bit depth is chosen. · Manufacturer specification
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Displayable colours
AOC AGP346UCSD1.073 billion
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Specification row reads "1.073B (10 bits)"; the bit-depth statement conflicts with the page's 8-bit feature text (see colour depth).
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Colour space (BT 2020) CIE 1976 %
AOC AGP346UCSD79.2
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Colour space (DCI-P3) CIE 1976 %
AOC AGP346UCSD99.0
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Colour space (sRGB) CIE 1976 %
AOC AGP346UCSD136.5
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Maximum power (W)
AOC AGP346UCSD206.0
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Power when off (W)
AOC AGP346UCSD0.3
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Typical / normal operating power
AOC AGP346UCSD120 W
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ. Source mode: typical.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Specification market
AOC AGP346UCSDAOC UK documentation
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · UK and US retailer searches are provided separately. A UK specification does not prove identical US variants, included plugs, stock or cross-border warranty.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
GtG response-time claim
AOC AGP346UCSD0.03 ms
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer response-time claim; settings and transition method matter. GtG and MPRT values are different measures and are not independent motion-clarity results.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Screen curvature
AOC AGP346UCSD1800R
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · AOC's specification table and product tagline state 1800R. One official gallery image carries a "WQHD CURVED 1500R" badge; that image is not used here and the badge is not treated as a specification.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Standby power (W)
AOC AGP346UCSD0.5
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Dimensions without stand (W × H × D, mm)
AOC AGP346UCSD811.7 (W) ×361.2 (H) × 130.2 (D)
LG 34GX90SA-WNot verified
Sources
AOC AGP346UCSD
Manufacturer specification · Manufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
A listed charging output reaches 15 W on the specified USB-C or Thunderbolt port. Match the laptop and cable to that port’s power and display capabilities.
Manufacturer specifications are claims, not independent measurements, current retailer stock or unstated regional compatibility. Unlisted units and capabilities remain unknown.
Manufacturer specification · Manufacturer resolution notation: 3440x1440. See the separate refresh-mode conditions for any lower-resolution configurations.
Manufacturer specification · Manufacturer claims. Full-screen, HDR peak and different APL window sizes are separate conditions, not directly comparable luminance tests.
Manufacturer specification · AOC's specification table and product tagline state 1800R. One official gallery image carries a "WQHD CURVED 1500R" badge; that image is not used here and the badge is not treated as a specification.
Manufacturer specification · Specification row reads "1.073B (10 bits)"; the bit-depth statement conflicts with the page's 8-bit feature text (see colour depth).
Manufacturer specification · Manufacturer-listed HDR formats or certification. This alone does not establish real-scene HDR quality, local dimming or measured peak brightness.
Manufacturer specification · Manufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
Manufacturer specification · Manufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
Manufacturer specification · Manufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
Manufacturer specification · At the native panel resolution. Manufacturer lists 360 Hz. Available modes depend on input, cable and source. Listed vertical input range: 48~360Hz.
Manufacturer specification · Manufacturer display-table maximum, not a motion index. Input-specific modes/overclocking remain in original source fields. Original: 240
Manufacturer specification · At the native panel resolution. Manufacturer lists 360 Hz. Available modes depend on input, cable and source. Listed vertical input range: 48~360Hz.
Manufacturer specification · Manufacturer response-time claim; settings and transition method matter. GtG and MPRT values are different measures and are not independent motion-clarity results.
Manufacturer specification · Manufacturer port counts and versions. Confirm source-device support, cable bandwidth and the exact mode; a connector name alone does not guarantee every advertised configuration.
HDMI: HDMI 2.1 x 2; DisplayPort: DP 2.1 x 1 (UHBR 20); USB-C connectivity: USB-C (DP Alt, PD 15W) x 1; USB type downstream: 3 x USB3.2 type A Gen 1, 5 Gbit/s (BC1.2x1 yellow); Audio Output: Headphone out (3.5mm)
d-sub: NO; dvi-d: NO; hdmi: YES(2ea); displayport: YES(1ea); dp version: 1.4 (DSC); thunderbolt: NO; usb-c: YES(1ea); usb-c (max. resolution at hz): 3440x1440@240Hz; usb-c (data transsmission): YES; usb-c (power delivery): 65W; daisy chain: NO; usb upstream port: YES(via USB-C); usb downstream port: YES(2ea/ver2.0); built-in kvm: NO; lan (rj-45): YES; spdif out (optical digital audio out): NO; audio in: NO; mic in: NO; headphone output: 3-pole (Sound Only); line out: NO
USB-C connectionSources
AOC AGP346UCSD
Manufacturer specification · The listed connections include USB-C or Thunderbolt. Video, data, upstream/downstream roles and charging power depend on the particular port.
Manufacturer specification · Manufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
Manufacturer specification · Match the screw pattern, screw dimensions, product weight and mount load rating; the pattern alone does not verify a safe mount.
Manufacturer specification · Manufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ. Source mode: typical.
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
Manufacturer specification · Manufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
Manufacturer specification · UK and US retailer searches are provided separately. A UK specification does not prove identical US variants, included plugs, stock or cross-border warranty.
Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.
Specifications without verified values for either product
Colour depthSources
AOC AGP346UCSD
AOC's UK specification lists 1.073B colours (10 bits), but the page's WQHD feature text says "True 8-bit color". AOC links no user manual for this model, so the disagreement stays unresolved and no bit depth is chosen. · Manufacturer specification
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.