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ASUS announced three new 27-inch QHD OLED gaming monitors on March 11, 2026. The range starts at a $599 launch MSRP with the 240Hz ROG Strix OLED XG27AQDMES, while the fastest model, the ROG Strix OLED XG27ACDMS, reaches 280Hz at a $699 launch MSRP. A third option, the glossy WOLED XG27AQDMG Gen2, costs $649 and targets buyers who prioritize HDR highlights and contrast.
All three use a 2560×1440 panel rather than 4K, and ASUS quotes a 0.03ms gray-to-gray response time for each. The launch prices are MSRPs, however, not guarantees of current store pricing.
ASUS ROG’s three new OLED monitors compared
| Model | Launch MSRP | Panel | Refresh rate | Peak HDR brightness | Best for |
|---|---|---|---|---|---|
| ROG Strix OLED XG27AQDMES | $599 | Semi-glossy QD-OLED | 240Hz | 400 nits | Lowest-cost entry point |
| ROG Strix OLED XG27ACDMS | $699 | Semi-glossy QD-OLED | 280Hz | 1,000 nits | Competitive gaming |
| ROG Strix OLED XG27AQDMG Gen2 (XG27AQDMGR) | $649 | TrueBlack Glossy WOLED | 240Hz | 1,300 nits | Glossy presentation and HDR highlights |
The headline needs one important clarification: the $599 model is not the 280Hz monitor. The XG27AQDMES is the least expensive model and runs at 240Hz; only the XG27ACDMS reaches 280Hz. ASUS lists the core specifications in its announcement.
ROG Strix OLED XG27AQDMES: the $599 starting point
The XG27AQDMES is the straightforward value option in this launch. It combines a 27-inch 2560×1440 QD-OLED panel with a 240Hz refresh rate, a claimed 0.03ms GTG response time, 99% DCI-P3 coverage, and true 10-bit color.
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- 27 Inch OLED Gaming Monitor with QD-OLED Technology - Experience true blacks and infinite contrast with advanced QD-OLED panel, delivering ultra-vivid colors (147% sRGB / 110% DCI-P3) for immersive gaming and content.
- 240Hz 1440p Gaming Monitor for Ultra-Smooth Performance - Play at peak performance with 240Hz refresh rate and ultra-fast 0.03ms response time, reducing motion blur and ghosting for competitive gaming.
- QHD 1440p Resolution with HDMI 2.1 Connectivity - Crisp 2560x1440 resolution with HDMI 2.1 and DisplayPort 1.4 supports high refresh rate gaming on PC, PS5, and Xbox Series X.
- G-SYNC Compatible for Tear-Free Gaming - Enjoy smooth, stutter-free gameplay with adaptive sync technology that reduces screen tearing and improves responsiveness.
- Height Adjustable Gaming Monitor with USB Hub - Ergonomic stand with height, tilt, swivel, and pivot adjustment plus USB 3.2 hub, VESA mount compatibility, and Flicker-Free technology for extended comfort.
Its stated peak HDR brightness is 400 nits, considerably below the 1,000-nit rating of the XG27ACDMS and the 1,300-nit rating of the WOLED XG27AQDMG Gen2. Those are peak HDR specifications rather than sustained full-screen brightness, but the gap is still relevant if HDR highlights are a major reason to buy OLED.
- DisplayPort 1.4 with DSC
- Two HDMI 2.1 ports
- G-SYNC compatibility and FreeSync Premium support
- ASUS OLED Care Pro and Neo Proximity Sensor
- Factory calibration, uniform-brightness features, and DisplayWidget Center
- Adjustable stand with tilt, swivel, and height adjustment
- Three-year warranty
Choose this model if 240Hz is sufficient and the priority is getting a QHD QD-OLED display at the announced lowest price. It is a weaker fit for buyers who need USB-C, want the brightest HDR highlights, or specifically want 280Hz.
ROG Strix OLED XG27ACDMS: the 280Hz option
The XG27ACDMS is the fastest of the three monitors. Its semi-glossy QD-OLED panel runs at 280Hz at 2560×1440 and carries the same claimed 0.03ms GTG response time, 99% DCI-P3 coverage, and true 10-bit color.
It also has a higher stated 1,000-nit peak HDR brightness than the $599 model. Connectivity includes DisplayPort 1.4 with DSC, HDMI 2.1, and USB-C with 15W power delivery. ASUS also lists a custom heatsink, uniform-brightness mode, aspect-ratio controls, OLED Care Pro, the Neo Proximity Sensor, and DisplayWidget Center.
The 280Hz refresh rate is most useful for competitive players whose systems can produce very high frame rates consistently. At 1440p, the monitor is easier to drive at high frame rates than a comparable 4K display, but the GPU, game settings, and connection path still determine whether a game can approach 280 frames per second.
ASUS’s U.S. product page showed the XG27ACDMS at $649 when checked on August 16, 2026, below its announced $699 MSRP. That observed price may reflect a promotion or a later pricing change, so buyers should verify the live price and stock on the official product page.
Rank #2
- QHD Resolution (2560 x 1440) has 1.7 times the pixel density of Full HD for incredibly detailed pinsharp images
- HDR10 provides brighter highlights and nuanced shadow for added depth - making every scene feel more vivid and realistic
- The 180Hz refresh rate minimizes lag for gameplay with ultra-smooth action. Plus, the 1ms response time helps capture your moves in real-time, allowing you to react fast for gaming precision
- AMD FreeSync reduces choppiness, screen lag and image tearing, ensuring that your fast-paced, complex in-game action is stable with minimal stutter
- Ergonomic stand allows for tilt, pivot and height adjustments to maximize gaming comfort
ROG Strix OLED XG27AQDMG Gen2: glossy WOLED with the highest peak rating
The XG27AQDMG Gen2, identified as XG27AQDMGR in the specifications, takes a different panel approach. It uses a TrueBlack Glossy WOLED panel rather than QD-OLED and supports 240Hz at 2560×1440.
Its headline specification is a claimed 1,300-nit peak HDR brightness, the highest figure among these three monitors. It also supports 99% DCI-P3 coverage, 10-bit color, DisplayPort 1.4 with DSC, two HDMI 2.1 ports, two USB 3.2 Gen 1 Type-A ports, G-SYNC compatibility, and FreeSync Premium Pro.
The glossy finish can make blacks and bright highlights appear especially vivid in a controlled room. It can also reflect windows, lamps, and other bright sources more readily than a less reflective coating. That makes room lighting an important part of the buying decision.
The monitor includes ASUS OLED Care Pro, the Neo Proximity Sensor, ELMB motion-clarity technology, Aura Sync, factory calibration, and DisplayWidget Center. Its announced MSRP is $649. See ASUS’s official product page for the model-specific details.
WOLED versus QD-OLED
The panel choice is more meaningful than the model names suggest. The XG27AQDMG Gen2 uses WOLED with a glossy surface, while the XG27ACDMS and XG27AQDMES use semi-glossy QD-OLED panels.
QD-OLED is attractive for wide-gamut color and OLED contrast, while the glossy WOLED model is aimed at buyers who prefer its presentation and ASUS’s higher peak HDR specification. Neither technology automatically makes one monitor better for every room or every game. Ambient light, HDR expectations, color preferences, and the importance of USB-C or USB-A connectivity should influence the choice.
Rank #3
- 27" QHD DISPLAY: Immerse yourself in stunning visuals with a 27-inch QHD (2560x1440) resolution, delivering crisp detail and vibrant colors.
- 240Hz REFRESH RATE & 0.03ms RESPONSE TIME: Enjoy smooth, blur-free gameplay with a lightning-fast 240Hz refresh rate and ultra-low 0.03ms (GtG) response time.
- HDR400 TRUE BLACK: Experience deeper blacks and brighter highlights with HDR400 True Black certification, enhancing contrast and visual realism.
- QD OLED TECHNOLOGY: Quantum Dot OLED panel ensures rich colors with 147.6% sRGB and 110.2% DCI-P3 color gamut coverage, providing stunning color accuracy
- ADAPTIVE-SYNC TECHNOLOGY: Eliminate screen tearing and stuttering with Adaptive-Sync compatibility, ensuring a seamless and fluid gaming experience.
The brightness numbers also require context. The listed 400, 1,000, and 1,300 nits are peak HDR figures, not promises that the entire panel will sustain those levels across a full white screen.
What 240Hz and 280Hz mean in practice
At 240Hz, a display refreshes approximately every 4.17 milliseconds. At 280Hz, that interval falls to about 3.57 milliseconds. The difference is real but modest, and it matters most in fast competitive games when the system can maintain correspondingly high frame rates.
For most players, OLED’s near-instant pixel response and the move from a conventional 60Hz or 144Hz panel will be more noticeable than the difference between 240Hz and 280Hz. Do not buy the XG27ACDMS solely because 280 is a larger number unless your games and hardware can make practical use of it.
ASUS’s 0.03ms figure is a manufacturer GTG response-time specification. It is not total system latency and does not include game processing, GPU render time, the display connection, or input-device latency.
All three monitors support variable refresh-rate features, and ASUS includes OLED Anti-Flicker technology for VRR situations. DisplayPort 1.4 with DSC is part of the stated specification, but achieving the maximum refresh rate still depends on a compatible GPU, cable, operating mode, and game.
OLED care, burn-in risk, and warranty
Each model includes ASUS OLED Care Pro and a Neo Proximity Sensor. ASUS says the sensor can dim or black out the screen when it detects that the user has moved away, reducing the time a static image remains visible. Pixel-care routines, panel management, heatsinks on applicable models, and brightness-management features are all intended to reduce OLED wear.
Rank #4
- LG UltraGear OLED Goes Glossy - Experience ultra-smooth, tear-free gameplay with up to 240Hz refresh rate and 0.03ms response time on a glossy, bright 27” QHD OLED display. React instantly, spot every detail, and outpace your opponents in every frame with outrageous speed and clarity.
- Next-Level OLED Brightness, for Next-Level Play - The brilliant OLED display brings every scene to life with jaw-dropping color and intensity. Delivering a standard 275 nits of brightness and peaking at 1300 nits, your games shine with vivid clarity—keeping dark corners detailed, explosions dazzling, and the action always visible no matter the environment.
- VESA DisplayHDR True Black 400 - An OLED display with VESA DisplayHDR True Black 400 and a 1.5M:1 contrast ratio deliver deep blacks and dazzling highlights, so you catch every hidden detail in dark scenes and every spark in the bright ones. With up to 98.5% DCI-P3 color, your worlds burst with vibrant intensity—making every game feel more alive.
- Three UL Certifications. One Clear Advantage for Eye Comfort. - This UltraGear OLED display is three times UL-certified—for Anti-Glare, Flicker-Free, and Low Blue Light. Combined with a glossy finish, the display helps reduce distractions, keep your view crisp, and maintain visual comfort—so you can stay focused and perform at your best, even during extended gaming sessions.
- 27” OLED Brilliance with up to 240Hz of Game-Changing Speed - Experience ultra-smooth, tear-free gameplay with up to 240Hz refresh rate on a glossy, bright 27” QHD OLED display.
They are mitigation tools, not a guarantee that burn-in or image retention cannot occur. Buyers who spend long workdays displaying static windows, taskbars, or desktop elements should use the available care features, allow pixel-refresh routines to complete, and understand the warranty terms before purchase. ASUS lists a three-year warranty for the announced lineup, but regional coverage and exclusions should be confirmed in the buyer’s market.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Launch price versus current price
ASUS announced the monitors on March 11, 2026, with launch MSRPs of $599 for the XG27AQDMES, $699 for the XG27ACDMS, and $649 for the XG27AQDMG Gen2. Those figures establish the announced U.S. pricing structure, but they do not necessarily represent current retail prices.
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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →As of the August 16, 2026 pricing check supplied for this article, ASUS’s U.S. page listed the XG27ACDMS at $649. Promotions, regional availability, inventory, and retailer pricing can change, so check the official product pages before ordering. In particular, “starts at $599” should be read as the launch MSRP, not a promise that the XG27AQDMES is still selling for exactly $599.
Which ASUS ROG OLED monitor should you buy?
| Your priority | Best match | Why |
|---|---|---|
| Lowest announced price | XG27AQDMES | It is the $599 launch model and still provides 240Hz QD-OLED gaming. |
| Competitive 1440p gaming | XG27ACDMS | It is the only model here with a 280Hz refresh rate and adds USB-C. |
| Glossy image and peak HDR specification | XG27AQDMG Gen2 | Its glossy WOLED panel has the highest claimed peak HDR figure at 1,300 nits. |
| Bright room | Usually XG27ACDMS or XG27AQDMES | Their semi-glossy surfaces may be easier to live with than a highly reflective glossy finish. |
| 4K sharpness | ROG Swift PG27UCDM | These three displays are all QHD, not 4K. |
For a lower-cost OLED upgrade, the XG27AQDMES is the logical starting point, provided its 400-nit peak HDR specification and lack of USB-C are acceptable. Competitive players with hardware capable of very high frame rates should consider the XG27ACDMS. The XG27AQDMG Gen2 is the more distinctive choice for buyers who specifically want glossy WOLED presentation and the group’s highest claimed peak HDR figure.
Alternatives worth considering
ASUS also sells options for buyers whose priorities fall outside this three-monitor range. The ROG Strix OLED XG27ACDNG is a 27-inch QHD QD-OLED monitor with a 360Hz refresh rate; ASUS’s U.S. page listed it at $759 when checked. It is more relevant to esports-focused buyers who value 360Hz over the new lineup’s lower pricing.
For higher resolution, the ROG Swift OLED PG27UCDM uses a 27-inch 4K QD-OLED panel at 240Hz and supports DisplayPort 2.1a with up to 80Gbps bandwidth. ASUS announced it at a $1,099 MSRP in January 2025. It is a better fit for buyers who want sharper text and more desktop detail and are prepared to trade some 1440p frame-rate efficiency for 4K resolution.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
