Compare ASUS ROG Strix 5K XG27JCG vs Samsung Odyssey 3D G90XF S27FG900X

Many find the pricing attractive for a 5K high-refresh monitor, but others argue similarly priced OLED alternatives offer better contrast and gaming speed.

Glasses-free 3D is exciting, but the high asking price is hard to defend for most shoppers given its narrow compatible catalog. A minority find the uniqueness worth paying for as dedicated early adopters.

Initial assembly and connecting a Mac are straightforward, apart from some less convenient mounting and setting details.

The stand attaches without fuss, and the basic monitor is straightforward to assemble. Enabling glasses-free 3D requires the companion application and additional USB and display configuration.

PS5 and Xbox testing finds broad 4K/120Hz and VRR support, making this an unusually capable 5K display for consoles.

Consoles can use the screen as a capable conventional 4K display, but the Windows-based 3D features do not translate to Xbox or PlayStation. The 3D premium therefore goes largely unused in console-focused setups.

The anti-glare coating works well in typical conditions, but other tested monitors can handle particularly bright rooms better.

The glossy lens surface can produce sharp-looking color but readily reflects windows and overhead lights. Reflections become particularly frustrating during daytime gaming or when concentrating on the stereo effect.

The analog headphone connection is appreciated as a practical audio option, especially since speakers are not built in.

Availability of a wired headphone jack is uncertain across the described configurations: some found one, while others could not. Check the exact regional model if a direct headphone connection matters.

Multiple HDMI, DisplayPort, USB-C and USB-A connections are a practical advantage, though the limited USB-C charging output holds back laptop use.

Dual HDMI connections, DisplayPort, and USB provide a workable gaming setup, but the lack of USB-C and DisplayPort 2.1 feels stingy at this price. Some layouts are more accessible than others.

The monitor earns enthusiastic recommendations as a flexible high-resolution gaming display, while a few reviewers question whether its specialized benefits justify the price.

The extraordinary 3D effect makes a compelling technology showcase, while the cost and compatibility issues leave the overall purchase divisive. It is easier to admire than to recommend broadly.

Numerous visual modes offer flexibility, but some presets look too dim or poorly judged without manual adjustment.

Genre-oriented modes provide bright, colorful starting points, and an accurate default is usable without extensive tweaking. Differences between presets are modest rather than transformative.

Some describe the stand and controls as reassuringly premium; another finds the housing too plastic-heavy for the asking price.

The metallic silver styling and substantial stand give the monitor an upscale character. The design feels more finished than the experimental nature of the underlying 3D technology might suggest.

VESA mounting is possible, but the recessed mounting area and trim removal can complicate fitting certain arms and stands.

Standard mounting support offers an alternative to the included stand. A wall mount or monitor arm can help personalize a desk or clear more working space.

Three USB-A downstream ports help connect desktop peripherals, and their utility is enhanced by the KVM system.

A USB upstream connection activates additional ports and the tracking hardware. It is a practical convenience, even if a dedicated USB-C laptop connection is absent.

Crosshairs, timers, configurable overdrive, shadow controls and motion settings provide a wide toolkit for gaming adjustments.

The gaming menus offer useful options such as targeting aids, picture modes, input choice, and display tweaks. The selection covers ordinary gaming needs alongside the specialty 3D controls.

No speakers are provided. Some consider this a regrettable omission, while others see it as acceptable for a gaming monitor used with external audio.

The speakers sound clear and reasonably loud for casual viewing, sometimes outperforming ordinary monitor audio. Their limited bass and less convincing directional effects leave room for external sound systems.

Text and fine textures are unusually crisp, often described as the best detail seen on a 27-inch gaming display.

Standard 4K content can look crisp and highly detailed, especially in games and productivity tasks. The lenticular coating and softer edges sometimes undermine that advantage compared with normal 4K monitors.

Reviewers consistently describe gaming input as responsive, with little delay during fast movement and precision aiming.

Input lag can feel practically imperceptible in regular gaming, and some measurements are comfortable for casual play. Serious competitors may want the lower latency available from esports-focused alternatives.

Motion is generally clean with sensible settings, but aggressive overdrive can introduce bright trails or inverse ghosting.

Motion stays comparatively crisp at sensible overdrive settings, with little blur in demanding test scenes. An extreme overdrive level can create distracting trailing artifacts.

Colors are widely praised as vibrant and rich, although the gamut is not as extensive as the best specialist creator displays.

Colors generally look saturated and appealing, with strong sRGB coverage and useful wide-gamut output. OLED alternatives can still look more vivid, and some testing found limited coverage in certain presets.

The 1440p/330Hz mode, responsive controls and motion options suit fast competition well, though OLED rivals may be preferable when pure esports speed is the only priority.

Smooth 165 Hz 2D play and quick responses work well for most fast games. Serious esports players can find even faster, more responsive alternatives, and the 3D mode is a poor fit for maximum frame rates.

Driving modern games at native 5K and high frame rates requires substantial GPU power; older cards may also face a lower 5K refresh ceiling.

Smooth 3D places heavy demands on the connected PC, often calling for high-end Nvidia graphics and substantial system memory. Less powerful or differently configured machines face restricted features or big frame-rate losses.

The anti-glare surface controls reflections well, although a few glossy-screen fans wish the image had a more glass-like finish.

The glossy front can make color look rich and avoid a grainy anti-glare texture. Its optical layer may show a faint grid or other artifacts at close range.

IPS viewing angles are serviceable at a normal desk position, but oblique views can shift brightness or color compared with more uniform displays.

The IPS panel is usable head-on but can lose brightness or shift color as the viewer moves off-axis. Stereo viewing is even more dependent on staying within the tracking range.

Pixel transitions are fast by IPS standards, although the fastest OLED panels retain an advantage and overdrive settings affect the result.

Rapid pixel response keeps conventional movement snappy and reduces visible blur. It performs well for an IPS panel even though leading OLED alternatives can transition faster.

The backlit rear logo offers adjustable visual flair while remaining relatively understated, though its effect is mostly visible from behind the screen.

The lower light strip adds a restrained splash of color and can follow the image on screen. Its front-facing position makes the effect more visible than typical rear-facing monitor RGB.

Most reviewers find blacks grayish or washed out compared with OLED, especially in dark rooms. One Mac-oriented review is more positive about the result.

The IPS panel offers acceptable blacks in ordinary lighting but falls short of OLED depth in a dark room. Some find them decent for LCD, while others notice gray-looking dark scenes.

The flat, compact stand keeps valuable desktop space open and can accommodate items placed on its base.

The relatively flat base and 27-inch format fit standard desks better than the price and novelty might suggest. There is still a solid stand beneath the panel, but it need not overwhelm the workspace.

Dense 5K detail makes high-resolution photographs easy to inspect, with far more definition than lower-resolution alternatives.

Factory-tuned color and 4K detail make occasional photo edits comfortable and precise. It can work as a creative display even if its unusual 3D layer is unnecessary for most editing.

Some tests find acceptable overall consistency, but light output varies across the screen and edge lighting can create distracting patches.

Edge darkening and minor blur can draw attention during web browsing or documents, although other testing found good white-field consistency. The effect is less obvious during games.

High refresh at native 5K plus up to 330Hz at 1440p delivers unusually flexible smoothness. Maximum 5K rates require a compatible GPU.

At 165 Hz, conventional games feel fluid and responsive. The number is respectable but no longer leading-edge for an expensive gaming monitor, and 3D mode has its own limits.

Movement remains impressively crisp across 5K and 1440p modes; ELMB 2 is a particular strength, though OLED still responds faster.

Standard 2D motion is often described as quick and fluid, especially with adaptive sync and a sensible overdrive setting. OLED alternatives provide cleaner fast motion at the premium end.

Height, tilt, swivel and portrait rotation are welcome, but some wish the panel could be raised higher, particularly for vertical use.

Height, tilt, and portrait rotation offer practical ways to position the screen. Multiple assessments call the range generous, though swivel flexibility is disputed or absent in more detailed testing.

A removable connector cover makes the rear connections look tidier after setup.

Rear-facing and outward-facing connections offer mixed convenience, but the stand's cable opening helps keep the desk orderly. The stand opening is not especially large, so several cables may need extra arranging.

Strong factory accuracy leaves little need for adjustment, yet enthusiasts can still fine-tune the monitor to a more exact reference result.

The default image can be accurate enough that calibration is unnecessary. Small gamma or color tweaks are available for anyone who wants to fine-tune further.

Fine-grained settings help balance response and overshoot. Midrange values tend to look best, while maximum settings risk visible inverse ghosting.

The factory Faster setting is a sensible compromise between sharp movement and artifacts. Pushing to Extreme cleans up some blur but creates obvious trails behind moving objects.

At roughly 218 pixels per inch, the display's tiny pixel structure makes text, textures and fine imagery exceptionally crisp.

Packing 4K into a 27-inch panel makes individual pixels hard to distinguish in normal 2D viewing. The fine density also helps counter the apparent resolution loss from its 3D optical layer.

Native 5120-by-2880 resolution is the standout draw, providing remarkably detailed games and text. That extra fidelity is most noticeable in slower scenes and desktop work.

The 4K panel supplies finely detailed imagery for games and ordinary desktop work. The impressive native resolution does not mean each eye sees the full 4K image in stereo mode.

Story-driven and slower games benefit greatly from detailed 5K environments and textures, although deep-dark HDR scenes reveal the IPS contrast limits.

Immersive open-world games benefit from detailed 4K visuals and smooth motion. Supported 3D titles can add striking depth, especially when the player is free to slow down and enjoy the scenery.

Adjustments feel secure and smooth, and the heavy, flat base resists wobble during normal handling.

The wide, substantial stand generally holds the panel firmly with little wobble. Its reassuring weight contributes to the premium feel.

Variable refresh rate helps prevent tearing, with ELMB Sync offering the valuable ability to combine VRR and blur reduction.

Variable refresh support helps keep ordinary games tear-free across capable PCs and consoles. That smoothness is separate from the restricted glasses-free 3D mode.

The organized menus offer deep customization, and convenient software control makes many adjustments easier.

The joystick-driven menu offers useful controls and generally navigable options, though some adjustments require too many clicks. Software-based controls can make repeated changes easier.

Ultra-fine detail and vivid color deliver an eye-catching image, especially in SDR. Weak black levels and limited HDR depth stop it from being universally outstanding.

Its sharp, bright 4K IPS image is enjoyable in many settings, but the lens layer and basic dimming can impair clarity or contrast. Picture quality alone is not the reason to pay the 3D premium.

Shadow Boost is viewed as useful in tactical games for revealing dark-area opponents without overexposing the whole screen.

The dark-area brightening aid can make opponents easier to see in shadowy scenes. It is a practical gaming control alongside the monitor's more experimental 3D options.

Ten edge-lit zones are inadequate for convincing HDR contrast and can create halos or distracting brightness patches.

The edge-lit approach relies on basic whole-frame dimming rather than precise zones. It can boost overall contrast, but it does not reliably protect highlights and may introduce distracting tonal changes.

Measurements show strong HDR brightness, but impressions of SDR punch vary; some appreciate the output while others want more headroom.

Day-to-day SDR brightness can be plentiful, with some strong measured peaks. Other testing found more ordinary output, and the panel does not deliver the dazzling HDR highlights of stronger alternatives.

IPS contrast is the chief image-quality compromise: some find it respectable for LCD, but dark scenes cannot match OLED or high-zone mini-LED.

IPS contrast is serviceable, and whole-frame dimming can improve the measured ratio in some scenes. Dark-room depth still trails comparably priced OLED or stronger mini-LED displays.

G-SYNC and FreeSync support provide responsive, tear-free gaming, including compatibility with a motion-blur reduction mode.

FreeSync and G-Sync compatibility help conventional gaming stay smooth and tear-free. These benefits apply to standard play, not all of the specialized 3D display modes.

Factory calibration is a strong point, with several reviewers observing accurate colors without adjustment; some note minor gamma or temperature deviations.

Factory tuning is frequently a highlight, with natural, accurate color reported without a full calibration process. Some modes fall behind rival gaming monitors, so the chosen picture preset matters.

Some reviewers enjoy the strong measured brightness and vivid color, while others find HDR unconvincing because edge-lit dimming cannot produce deep blacks or clean highlights.

HDR color can be enjoyable, but bright highlights and black depth lack the punch expected from similarly priced OLED or mini-LED monitors. HDR also cannot be enjoyed simultaneously with the proprietary 3D effect.

DisplayPort 1.4 works with compression but feels dated for such a demanding 5K display; several would prefer DisplayPort 2.1.

DisplayPort 1.4 works for conventional connectivity, but the lack of the newer 2.1 standard disappoints at this price. Some would expect more forward-looking ports on such an expensive display.

The compact stand and restrained front appeal to many, while opinions differ on the familiar angular plastic rear casing.

The silver chassis, flat stand, and relatively restrained styling look modern and premium. The extra tracking hardware is incorporated neatly enough that the screen largely resembles a normal gaming monitor.

The stand and assembly feel sturdy and well finished, though the plastic enclosure disappoints at least one buyer expecting more luxurious materials.

The sturdy stand and clean housing create a substantial, polished impression. Even the less elaborate plastic parts generally feel well assembled rather than experimental.

A 27-inch surface gives 5K pixels exceptional density without requiring a massive workspace, fitting the intended high-detail viewing distance.

The 27-inch diagonal is a comfortable middle ground for desktop gaming. It is large enough to appreciate 3D depth without requiring the space of a much bigger display.

Normal operation is reported as flicker-free even at low brightness, although motion-strobing features inherently behave differently.

Brightness control avoids PWM flickering in the reported test, which is welcome for sensitive eyes. This does not eliminate the possibility of visual discomfort from the separate stereo 3D effect.

Thin borders keep attention on the image and help the display look clean from the front.

The tracking cameras require an enlarged upper bezel, but they are discreetly incorporated into the frame. The finished monitor still looks reasonably streamlined from the front.

Several measurements find that indicated gamma runs higher than its actual target, so accurate output may require choosing a lower menu setting.

Default gamma can run slightly above the usual target, giving shadows a deeper look. An available adjustment can bring it closer to standard tracking when precision matters.

DisplayWidget Center is repeatedly praised for making presets, brightness and other settings easier to change without reaching behind the screen.

The companion display-control utility makes changing the monitor's regular settings more convenient than working through the rear joystick. It is a helpful option for a desktop setup.

Side-by-side stereoscopic video is supported and can look impressive, but native frame-sequential 3D Blu-ray playback is missing. This is a meaningful distinction for anyone with a traditional 3D movie collection.

The supported game selection is the monitor's biggest stumbling block. It can make compatible titles spectacular, but the roster has been small and inconsistent enough to make the premium difficult to justify.

Depth and pop-out controls let players tailor the dimensional effect, while remappable shortcuts make adjustments less disruptive. The custom controls are especially welcome when a default shortcut conflicts with game inputs.

Three-dimensional play involves substantial display compromises: HDR and adaptive sync cannot be combined with the effect in the described setups, while 3D refresh or effective resolution may be lower than in 2D.

Stereo rendering divides image information between the eyes, producing some softness, grain, or fringing. The effect nevertheless looks strikingly detailed and natural in its best optimized games.

Tracking permits some head movement without losing the stereo illusion. Sitting too far to the side, moving rapidly, or leaving the viewing range can still compromise the image.

The smaller simulated screen option helps tailor competitive games to a tighter viewing area, with smooth performance in the tested configuration.

The automatic converter can make compatible videos feel layered and surprisingly immersive. Dark scenes, protected streams, unsupported content, and depth-map artifacts keep it from matching games designed for 3D.

Automatic picture-profile selection is a convenient alternative to manual preset switching, particularly when moving between games and work apps.

The IPS panel can show visible glow and bleed in dark scenes, making black areas look less even than on OLED displays.

ASUS's motion-blur reduction is praised for crisp movement without the severe brightness loss associated with many older strobing systems.

The speakers handle basic audio but lack low-end impact. Explosions, music, and cinematic effects benefit from external speakers or headphones.

The sparse edge-lit dimming creates obvious halos around bright objects, a major distraction in HDR scenes.

Copy-protected streaming is a major barrier to automatic 3D video conversion. Netflix and other protected movies may stay in 2D or produce a blank screen rather than the promised dimensional effect.

The combination of exceptionally sharp 5K and 1440p at 330Hz is the monitor's signature advantage. A few find the lower-resolution mode softer than a native 1440p panel.

ELMB 2 earns especially strong praise for reducing blur while preserving brightness. Reviewers generally favor moderate clarity settings to avoid unnecessary artifacts.

The matte housing hides fingerprints effectively, helping the exterior retain a clean appearance.

Lifelike depth without wearing glasses is the standout accomplishment, producing memorable foreground effects and convincing environments. Alignment hiccups, limited content, and occasional artifacts prevent it from feeling completely mature.

Bright details can look vivid, but limited local contrast prevents HDR highlights from standing out consistently against dark surroundings.

Non-native content generally upscales cleanly, but the 1440p high-speed mode can look softer or more pixelated than true native QHD to some eyes.

The usual cables and ROG extras are provided, but one purchaser felt the box's minimal cable selection fell short of a premium unboxing.

An internal power supply eliminates an external brick, simplifying placement and cable routing.

Retina-like 5K text and desktop smoothness make the display appealing for Mac users. Mac-specific limits and weaker connectivity than Apple's own displays remain considerations.

One owner encountered desktop flickering after several hours using the 180Hz overclock and had to restart the PC; the problem did not recur during the brief test period.

The simple carton and sparse contents lack the premium unboxing experience one buyer expected from a high-priced ROG product.

Strong PC gameplay is possible at either resolution, but high-end 5K refresh rates depend heavily on graphics hardware and supported settings.

The 27-inch size and manageable weight make repositioning it easier than moving a larger display. It still feels solid once placed on its desk stand.

A PlayStation can be connected for standard display use, but its games cannot use the Windows-based glasses-free 3D conversion. That makes the costly headline feature unhelpful to a PS5-only setup.

The threaded socket atop the stand is a useful addition for attaching a camera, light or other streaming accessory.

The 15W USB-C output is consistently flagged as insufficient for charging most laptops or handhelds during normal use.

The rear ports are reachable when facing the screen, although their orientation can make it easier to turn the monitor around when plugging in cables.

Head and eye tracking generally keeps the stereo picture anchored as the viewer shifts position. Fast movements can cause a brief loss of alignment, and the system is designed around a single primary viewer.

Supported games can look terrific, but their 3D effects are not uniformly stable. Certain cutscenes, scanning failures, doubled images, and occasional artifacts can break immersion.

The extra rendering work can severely cut frame rates, especially in unsupported or demanding titles. Powerful test systems sometimes handled the effect smoothly, but that is far from guaranteed.

Once configured, mode switching is quick, but changing resolution while a game is open can trigger display problems.

The integrated KVM is useful for sharing peripherals between a gaming desktop and another computer without constantly reconnecting devices.

Directional audio adds some presence to 3D scenes but does not convincingly replace strong external speakers or headphones. The perceived surround effect varies considerably across comparisons.

Avoiding a headset or glasses makes extended 3D sessions feel surprisingly natural for many viewers. Others encounter disorientation, eye strain, or distraction, so individual tolerance matters.

Adjustable blue-light filtering helps warm the picture for more comfortable extended viewing.

Extensive RGB, gamma, gamut and image-mode adjustments give users considerable control over color presentation.

Unlike many gaming monitors, this one lets users adjust HDR brightness and contrast, providing welcome flexibility for different content and consoles.

In ordinary HDR gaming, tone mapping can render colors and scene brightness convincingly. Dynamic mapping is a useful option for getting more from HDR10 material.

The launcher can discover compatible games and manage depth settings, but its stability and usability vary sharply. Missing titles, disruptive visuals, extra setup steps, and a small catalog make the software feel unfinished to some users.