Compare ASUS ROG Swift OLED PG27UCDM vs Samsung Odyssey OLED G81SF S27FG810S

An integrated KVM lets a keyboard and mouse move between a desktop and laptop without constant cable swapping. It's one of the more practical extras.

There is no integrated KVM to share one keyboard and mouse between computers. That is especially disappointing for multi-device workstations at this price.

Full 80Gbps DisplayPort 2.1 can deliver uncompressed 4K at 240Hz with compatible hardware, bypassing DSC-related limitations. The visible difference from working DSC is usually small.

DisplayPort 1.4 with compression can carry the full 4K/240Hz image, but some buyers expect DisplayPort 2.1 in this price range. Actual picture clarity is not a major complaint.

Picture-in-picture and picture-by-picture modes are available, but DSC restrictions reduce refresh and color options and require manual re-enabling afterward.

Picture-in-picture is useful for checking a second source while keeping the main image large. It cannot replace full side-by-side layouts and can feel cramped on 27 inches.

The joystick-controlled on-screen menus are responsive and easy to navigate. They also offer plenty of useful display adjustments.

The simple menu is responsive and straightforward for some, but the rear control is awkwardly located and disliked by others. Controls are more divisive than the picture.

Brightness works well in typical indoor conditions, especially with the right settings. It cannot sustain the luminance of a bright LCD, and large white areas may look subdued.

Highlights can look vivid, and many find everyday SDR brightness sufficient. Sustained bright HDR scenes fall short of brighter LCD or mini-LED options.

Shadow Boost makes opponents hiding in dark areas easier to spot without demanding a separate software workaround.

Adjusting shadow lift can expose opponents in dark areas without increasing overall brightness. It takes experimentation to balance visibility against accuracy.

Broad adaptive-sync support generally keeps frame delivery smooth across different graphics cards. Uneven frame rates can still trigger OLED flicker.

FreeSync and VRR help keep action smooth when frame rates fluctuate. Some setups may require tweaking VRR Control because flicker can be noticeable.

Rich blacks and intense small highlights give HDR games and movies real impact. Large bright scenes and the compromises between HDR modes keep it short of a flawless presentation.

Bright accents against OLED blacks make cinematic HDR compelling, especially in darker rooms. Peak-brightness limits and finicky tone mapping keep bright scenes from being equally spectacular.

Factory color is impressively accurate, particularly in the dedicated sRGB mode. Some HDR modes and the default wider gamut require more care for precision.

Colors generally look pleasing and capable of supporting creative work. Some tuning and preset choices can matter when precision is more important than impact.

Pixel-level light control produces outstanding scene depth and contrast, especially in darker rooms. Strong ambient light can diminish that striking effect.

Pixel-level lighting creates dramatic separation between bright highlights and truly dark areas, without LCD-style halos. Games gain a strong sense of depth.

Per-pixel dimming allows fine control of bright objects against black backgrounds, avoiding the zone-by-zone compromises of typical LCDs.

Each OLED pixel independently controls light, keeping bright details sharply separated from dark ones. The result is effectively halo-free contrast.

Fanless operation keeps the monitor silent, avoiding a distraction found on some actively cooled displays.

The fanless approach is effectively silent during use, avoiding a common concern with complex gaming displays. It preserves immersion during quiet scenes.

Fine details, vivid color, and inky blacks combine into outstanding image quality. The picture is most impressive with room lighting under control.

The 4K QD-OLED image looks intensely detailed, colorful and contrast-rich, particularly in games. Matte haze and a few HDR brightness tradeoffs can temper the effect.

The 90W USB-C connection can carry a laptop's picture, data, and power together. Higher-demand laptops may still need their own charger.

The missing USB-C video and charging connection is an important omission for laptop users. A modern one-cable setup is not possible directly from this screen.

The screen itself is a compact 27 inches, yet its deep, three-legged stand occupies a surprising amount of desk. A monitor arm may be worth considering.

A slim screen and relatively flat, tidy stand work well on standard desks. The 27-inch format avoids the bulk of larger gaming monitors.

A certified high-bandwidth DisplayPort cable is included, but its roughly one-meter length can be restrictive for separated PC and monitor positions.

HDMI and DisplayPort cables, power hardware and the stand make initial setup convenient. The included connections cover a typical desktop gaming arrangement.

The semi-gloss finish preserves a notably clear and vivid image without the grain of some matte coatings. Bright reflections remain an unavoidable compromise.

The coating divides opinion: reflections are greatly subdued, but light backgrounds can look grainy or slightly diffused. Glossy alternatives have a cleaner appearance in controlled lighting.

4K at 27 inches benefits from careful Windows or application scaling; small text and inconsistent software rendering can complicate otherwise crisp desktop use.

Lower-than-4K material generally scales cleanly and can be sharpened to taste. Pre-480p sources are a notable exception.

Running peripherals through the built-in USB hub reduces desk cable clutter and keeps the computer's ports freer.

The rear strap keeps basic wiring together, but it is not a full cable-hiding solution. Wall-flush desks can still expose a cluster of cables.

DisplayPort 2.1, two HDMI 2.1 inputs, USB-C, and a USB hub give this compact display unusually broad connectivity. Its KVM adds everyday utility.

HDMI 2.1, DisplayPort and a USB-A hub cover core gaming needs, but there is no USB-C or KVM. A few prefer newer DisplayPort bandwidth at this price.

OLED power consumption can exceed a comparable 4K LCD by a wide margin during bright full-screen content, despite modest use in mixed scenes.

Lower brightness settings can reduce eye strain and power bills, although efficiency is not the main appeal. High refresh and vivid OLED performance remain the priority.

At this pixel density, the colored fringes associated with older QD-OLED monitors become very hard to notice. A few users may still spot artifacts in certain text or window edges.

Fine pixel density minimizes visible OLED text artifacts for some, but others notice colored edges on small high-contrast text. Matte diffusion adds another sensitivity-dependent variable.

The glossy anti-reflective finish can handle ordinary indoor glare well, but direct lamps and windows remain troublesome. Opinions vary with lighting and where the screen sits.

The matte finish effectively diffuses window and lamp reflections rather than producing mirror-like glare. That advantage comes with some extra perceived grain or haze.

QD-OLED delivers wonderfully deep blacks, vivid color, and fast pixel transitions. It also retains familiar limitations with ambient lighting and prolonged static content.

QD-OLED delivers superb blacks, intense colors and extremely fast motion, giving the display much of its appeal. Its light sensitivity and OLED maintenance needs are real tradeoffs.

High-resolution text, excellent color, USB-C, and KVM make this more useful at work than many gaming displays. Heavy static desktop use remains a less comfortable long-term fit.

The sharp panel is pleasant for general tasks, but competing displays with KVM and USB-C are easier to integrate into a work-first desk.

Cinematic games look gorgeous thanks to deep blacks, highlights, and fine detail. A larger 32-inch screen can still feel more absorbing for single-player adventures.

OLED blacks, vivid color and sharp 4K details make story-driven and atmospheric games immersive. High graphical settings will still challenge the fastest PCs.

Changing frame rates can cause noticeable flicker, especially in dark games. Anti-flicker settings help in some tests but do not reliably remove the problem.

Uneven frame pacing can trigger distracting brightness flicker in dark scenes with VRR Control disabled. The mitigation setting may help, though it is not guaranteed to cure every game.

There are no integrated speakers. That absence is especially inconvenient when watching shows or using the screen without external audio.

There are no onboard speakers, so even simple notification sounds require headphones, a soundbar or external speakers. This can be frustrating at the price.

A custom heatsink enables effective passive cooling without relying on a fan, supporting a quiet desktop setup.

Samsung’s thermal system draws praise for running cool without noisy fans or intrusive maintenance. It is a distinctive strength of the design.

OLED's extremely fast transitions deliver a major clarity advantage over LCD screens at comparable refresh rates, even without strobing.

High-refresh OLED motion is impressively clean, and external BFI can make 60Hz content clearer still. It remains a specialized workaround.

Cardboard-based packaging avoids polystyrene, an environmentally preferable choice that stands out from typical monitor shipping material.

The box is easy to navigate, making the monitor and included parts straightforward to unpack. Initial setup feels approachable.

The solid materials and sturdy construction feel premium, even if the aggressive exterior details are not universally appealing.

Metallic silver finishes, tidy lines and restrained details help the screen feel expensive. The stand and housing stand out against plainer plastic alternatives.

Standard VESA mounting is available and helps free up desk space. ASUS's required adapter bracket adds a small installation step.

Compatible monitor arms offer more positioning options and free up desk space. The standard mount complements the adjustable stand.

Support for major PC and HDMI VRR formats makes the monitor flexible across devices and GPUs. Flicker with sudden frame-rate changes is the main caveat.

Adaptive refresh supports smooth PC and console play across variable frame rates. It is particularly useful when a game cannot hold a steady 240fps.

PS5 and Xbox support reaches 4K at 120Hz, with Dolby Vision providing an extra option on Xbox. Console players cannot use the panel's full 240Hz rate.

4K, HDR, VRR and strong 120Hz responsiveness make modern consoles look excellent. The 240Hz maximum is largely unused, and separate audio is needed.

Height, tilt, swivel, and portrait rotation offer a wide adjustment range. Most movements are smooth, though tilt can feel stiff.

Height, tilt, swivel and portrait rotation provide welcome flexibility. One owner found the movement stiff, but generally the support is stable and versatile.

The built-in USB hub keeps keyboards and mice connected to the display and cuts down on cable runs to a desktop PC.

The USB-A connections provide practical peripheral access, including useful powered-port scenarios. They are welcome but do not replace a laptop dock.

At 240Hz, gameplay is exceptionally smooth without sacrificing 4K sharpness. Reaching that ceiling in demanding games takes a powerful PC.

The 240Hz ceiling makes fast PC gaming beautifully fluid, with ample room for esports frame rates. The benefit is less substantial when demanding 4K games run far below 240fps.

The 240Hz OLED speed, minimal input lag, and compact view make fast shooters highly responsive. It remains a demanding choice for PCs trying to push 4K frames.

Quick pixel response, low input lag and a 240Hz ceiling make it excellent for fast shooters and esports. Players prioritizing the very highest frame rates may prefer a lower-resolution, faster screen.

Crosshairs, Shadow Boost, and other game tools offer meaningful flexibility, though veteran players may find some automated extras unnecessary.

Game and picture modes provide plenty of quick looks and fine-tuning choices. A few settings can produce unnatural color or require adjustment.

Dark-room blacks look almost perfectly inky with no gray backlight haze. Direct lighting can make the QD-OLED panel appear grayish or purplish instead.

Deep, near-perfect blacks bring dark scenes to life when ambient light is controlled. In brighter spaces, the QD-OLED panel can make those blacks look purple or raised.

Input lag is very low, making games feel immediate and responsive. The monitor is particularly attractive for fast competitive play.

Controls feel immediate, with particularly low lag at high refresh rates and strong responsiveness even at 60Hz and 120Hz. That helps both PC and console play.

A high-end PC can make excellent use of the 4K/240Hz panel's sharpness and low latency. More modest graphics hardware will not always reach the top refresh rate.

A powerful gaming PC can take full advantage of the sharp 4K image, fluid refresh and low-latency response. Less capable systems may be better matched to a cheaper 1440p OLED.

OLED Care features include pixel maintenance, logo protection, and a useful proximity sensor. They reduce wear during varied use but cannot make permanent burn-in impossible.

Cooling and static-element dimming are thoughtful OLED-care features and do not interrupt normal gaming often. They reduce risk rather than guarantee permanent immunity.

The sturdy stand holds its position with little to no wobble, even during joystick adjustments.

The slim base is reassuringly firm and keeps the panel steady. Some resistance in the adjustment mechanism may even help prevent accidental movement.

The exceptionally dense 4K panel gives the monitor some of the cleanest-looking text and game detail available in desktop OLEDs. Fine edges look superb.

Games and photos look strikingly crisp at native 4K. The matte coating and some text-scaling preferences can make white desktop elements look softer to sensitive eyes.

The overall experience earns enthusiastic praise for a rare mix of 4K sharpness, 240Hz speed, and OLED imagery. Price, stand design, and OLED tradeoffs prevent a blanket recommendation.

A striking gaming display whose picture quality and responsiveness win strong praise. The high hardware demands, premium cost and missing convenience extras stop it from being an automatic pick.

Individual OLED pixels eliminate the bright halos commonly seen around small highlights and subtitles on zone-lit LCD displays.

Individual OLED pixels keep highlights from spilling light into neighboring dark areas. Subtitles, stars and high-contrast scenes stay clean.

The broad DCI-P3 and Adobe RGB coverage supports rich game color and detailed creative visuals. Wide-gamut material looks especially vibrant.

Vivid, wide-gamut colors are among the monitor’s best qualities, making games and creative visuals look lively. Saturation is especially impressive in colorful HDR scenes.

User-updateable firmware and automatic update support are welcome conveniences for keeping monitor controls current.

Firmware can be updated easily from a USB drive through the monitor menu, without needing a PC connection. The process was quick and uncomplicated.

Rapid motion stays remarkably distinct, with moving objects and fine interface details easier to follow. Clarity remains impressive at lower refresh rates too.

Fast movement stays exceptionally clean, with little blur or smearing. Even lower frame rates can feel responsive thanks to the OLED panel.

Packing 4K into a 27-inch OLED gives games, interface elements, and small text exceptional definition. The extra pixels are especially noticeable next to 1440p OLEDs.

Packing 4K into 27 inches produces fine gaming detail, crisp graphics and a sharp desktop. It takes a powerful GPU to combine that resolution with very high frame rates.

Near-instant OLED transitions keep action crisp from high refresh rates down to slower gameplay. Response performance is a clear strength.

The rapid OLED pixel transitions preserve detail during quick camera movement and high-speed action. It is a standout strength across gaming modes.

Wide viewing angles keep color and contrast consistent well off-center, making the image easy to appreciate from different positions.

Colors and contrast remain strong from wide angles, without the obvious washout of many LCDs. That makes the image dependable off-axis.

ROG lighting and logo projection lend a bold gamer look, but the large three-legged stand and flashy flourishes divide opinion. Several would trade the styling for a simpler base.

The sleek metal look and nearly frameless panel are a strong visual draw. Lighting accents add a subtle gaming touch without dominating the design.

Blue-light filtering and generally flicker-free operation help comfort, although some filters cannot be combined with Uniform Brightness mode.

Eye-saver and flicker-reduction settings are welcome options for longer sessions. They complement the glare-reducing finish.

The 27-inch format brings unusually high pixel density and suits closer desk viewing. Some people still prefer a 32-inch OLED for a roomier canvas or more immersive games.

The 27-inch format packs remarkable detail into a desk-friendly footprint. Some prefer the larger 32-inch version for greater immersion.

Materials and assembly feel solid and high-end, with the sturdy stand and metal details contributing to a premium impression.

The thin metallic housing and sturdy stand give this monitor a solid, upscale construction. Its slimness does not undermine the overall feeling of quality.

Exceptional performance comes with a high price, and several similar OLEDs are cheaper or larger. The premium is easiest to justify when its particular extras matter.

Exceptional visuals and speed justify a premium for the right gamer, but the original high price competes poorly with similarly capable rivals. Sale pricing makes it markedly more attractive.

The high-bandwidth HDMI 2.1 ports make modern PCs and consoles easy to connect. They're especially welcome alongside DisplayPort 2.1.

The HDMI connections are well suited to 4K/120Hz consoles and high-refresh PC sources. Multiple ports simplify switching gaming devices.

Accurate sRGB modes, gamma options, and HDR controls make fine-tuning flexible. The most accurate preset locks many settings, creating a convenience tradeoff.

Granular color and white-balance settings make it possible to tune the picture to taste. They offer useful flexibility beyond the defaults.

The control joystick and logical menus make frequent adjustments quick and intuitive instead of cumbersome.

Multiple virtual aim points can help shooters with difficult aiming situations. The feature is a useful extra rather than a reason to buy by itself.

Selectable 4:3 and simulated 24.5-inch views give competitive players more control over their preferred playing field.

Pixel-level OLED lighting avoids the unwanted edge glow seen on some LCDs. Dark areas stay convincingly dark.

There is no built-in BFI mode, but an external scaler can enable effective low-frame-rate clarity enhancements. That workaround adds complexity and can cost brightness.

The rear light ring adds a customizable, softly glowing backdrop for gaming. It is most visible near a wall in a dim room and may seem subtle elsewhere.

Rich billion-color reproduction gives pictures smooth, natural transitions and bold hues. It supports the monitor’s expressive visual quality.

ELMB improves perceived motion at 120Hz but halves brightness and disables HDR and VRR. It is helpful in particular games rather than a universal setting.

Core gaming tools are present, but the extras feel sparse compared with some rivals. The display prioritizes picture quality over convenience features.

Fast-moving objects show little to no ghosting or overshoot. This is a major advantage over many LCD gaming monitors.

4K at 240fps is a demanding target even for powerful graphics cards. Much of the monitor’s headroom can go unused on midrange systems or in maximum-detail AAA games.

Color shifts appear natural and fluid rather than harshly banded. Subtle gradations complement the screen’s wide color range.

Small bright objects stand out sharply against dark surroundings, adding depth and sparkle. Overall HDR intensity is constrained in very bright scenes.

The headphone jack provides a simple way to route audio through external equipment. It can also help create a tidy soundbar arrangement.

The integrated power supply eliminates a separate external brick, simplifying cabling and desk placement.

OLED's consistent fast response eliminates the need to juggle LCD-style overdrive levels across refresh rates.

OLED-care routines did not interrupt normal gaming during extended hands-on use. That keeps upkeep from becoming a regular annoyance.

A clean, defect-free review sample gives a good first impression of the display. Buyers should still inspect their individual panel.

Detailed 4K images and rich QD-OLED color work well for graphics and photo editing. Exact tonal decisions may call for careful calibration and coating preference.

The inspected unit arrived with no dead pixels or visible defects. That is reassuring for its initial condition, not a guarantee for every unit.

At around 166 pixels per inch, tiny details, text and textures look unusually well defined for a gaming monitor. The close-packed pixels are a major benefit over similarly sized 1440p screens.

The slim, relatively light chassis is easier to reposition than its premium metal look suggests. This matters most if the monitor is moved regularly.

The high-resolution panel and fast 120Hz-class response suit PlayStation gaming well. It lacks a few TV-oriented conveniences, including built-in audio.

The lack of a remote frustrates those accustomed to other Samsung monitors. Basic settings must be handled from the rear joystick.

White and dark-gray fields look notably even, with little distracting dirty-screen effect on the tested panel.

Switching into Dolby Vision triggered repeated display blackouts when opening different programs, prompting a move back to standard HDR.

Fine gradations in dark scenes remain visible without lifting black levels excessively. This adds depth to atmospheric gameplay.

The proximity sensor can blank the screen when you leave and restore it promptly when you return. That makes daily use simpler while reducing unnecessary OLED exposure.

The special ultrawide view expands the horizontal perspective but puts black bars above and below. A real ultrawide screen is preferable for frequent widescreen play.

Some rear ports are awkward to reach around the stand neck. Cable changes can be less convenient than the specification suggests.

Movie image quality is strong, but certain 24Hz or 50Hz disc outputs from consoles are not accepted. A separate player may be needed for native-rate discs.

Low lag can make 60fps games surprisingly responsive, including console titles. This does not imply all older signal formats are compatible.

There is plenty of control over brightness, tone mapping and color, allowing users to refine the image. The number of interactions needed to find a satisfying HDR mode can be a nuisance.

Some scenes look spectacular, but dynamic processing can change brightness too aggressively or leave other parts too dark. Manual settings may produce a more consistent image.

A traditional monitor interface replaces Samsung’s TV-style apps and remote. That simplifies PC settings but removes built-in streaming conveniences.

DisplayWidget Center makes adjusting monitor settings from Windows straightforward. Software and firmware controls add convenience beyond the OSD.

Automatic brightness limiting can make desktop windows change luminance as content shifts. Uniform Brightness largely fixes the distraction but caps maximum output.

Quantum-dot color looks impressively saturated and luminous, especially in vibrant game environments. Intense hues remain a major visual attraction.

One test encountered several seconds of black screen when changing between games with different demands. It can be jarring even though gameplay picture quality is excellent.

Compression over the available ports is described as visually transparent, with little visible difference between HDMI and DisplayPort. It enables high refresh without noticeable image loss.

Dolby Vision is a useful extra for compatible Xbox games and video, supplementing HDR10. One user found switching between programs disruptive enough to disable it.

Short-term operation was trouble-free without burn-in or other issues. Longer ownership still depends on static-content habits and OLED care.

Assembly is quick and generally straightforward, with simple click-and-twist fittings. The mechanism can take a moment to figure out the first time.

Three-year burn-in coverage is reassuring where the product's warranty terms confirm it. Coverage details should be checked for the region and SKU, and protection does not eliminate risk.

The thin-edged screen looks modern, though the silver trim can be more noticeable in a bright room than dark bezels. It is mostly a preference issue.