Compare ASUS ROG Swift OLED PG27AQWP-W vs LG 39GX950B-B

Three-year coverage including burn-in offers peace of mind for such an expensive OLED display; regional terms should still be checked.

The two-year panel warranty feels short beside common three-year OLED coverage, with burn-in terms not always clearly promoted.

The cutting-edge screen earns praise, but several tests suggest 280Hz or 500Hz OLED alternatives can provide much of the experience for less.

The OLED picture quality is top-tier, but its premium price and cheaper competitors make the value proposition hard to defend.

Smaller simulated screen areas and 4:3 or square ratios offer practical flexibility for esports and retro titles.

Standard 16:9 console or video sources can display correctly with black sidebars instead of stretched proportions.

The two HDMI 2.1 inputs provide high-refresh and downscaled-4K console flexibility.

HDMI 2.1 connectivity suits modern consoles and PCs and supports high-resolution, high-refresh video feeds.

The glossy finish preserves clear images but can mirror windows and lamps directly facing the screen. Placement matters more than with matte monitors.

The matte anti-glare coating does a convincing job diffusing reflections, especially for a curved display, though direct sunlight can still distract.

OLED Care settings and the responsive proximity sensor help reduce static-image exposure. They are useful precautions rather than guarantees against burn-in.

OLED-care options are basic compared with rival premium monitors, and prolonged static desktop content still calls for caution.

The tripod-style feet make a design statement but occupy more room than a compact monitor base.

Despite its large 39-inch screen, the monitor occupies less width than many dual-screen arrangements or 45-inch ultrawides, but a deep desk helps.

Around 110 pixels per inch is sensible for 27-inch gaming, though text and fine desktop details look less crisp than on 4K displays.

At roughly 143 PPI, this monitor approaches the text sharpness of a 32-inch 4K display while offering much more horizontal room.

TrueBlack Glossy removes coating grain and gives games a crisp, vivid look. Its exceptional clarity is the main reason to prefer this screen finish over matte alternatives.

The matte finish reduces mirror reflections but does not deliver quite the crystalline sheen favored by fans of glossy OLED.

There is a generous range of controls for esports play, picture adjustment and screen care.

Useful gaming aids and dual-mode are available, but absent anti-flicker, KVM, and black-frame-insertion functions leave the feature set uneven.

White uniformity is generally fine, but dark-gray backgrounds can show vertical banding or faint dirty-screen texture.

Most tested samples showed little distracting banding in routine use, though dark-gray banding can vary between panels or modes.

Native 1440p looks good for 27-inch gaming and makes extreme frame rates more achievable than 4K. The 720p boost mode is much blurrier, and 4K remains sharper for fine text.

The 5120×2160 5K2K resolution is a major upgrade over earlier 39-inch ultrawides, bringing finely detailed games and substantially sharper desktop content.

There are no built-in speakers, so console and other external-device users need headphones or separate audio equipment.

The integrated speakers are a welcome convenience for consoles and occasional listening, though they are not substitutes for dedicated audio.

Near-black shades can be crushed in several gaming and HDR presets, even though other testing found dark-scene detail pleasing. Adjustments improve visibility but can alter the whole image.

Dark-scene detail is generally well preserved, with black-level adjustments available to bring out shadow information.

Switching to 720Hz is convenient and appealing for niche esports scenarios, but the 720p image is soft, with a larger loss of detail than the speed improvement can usually justify.

Switching between highly detailed 165Hz output and much faster 330Hz action adds flexibility, but the lower-resolution mode looks visibly soft.

Native 1440p at 540Hz is exceptionally smooth for high-frame-rate games. The optional 720Hz mode adds smaller improvements and cuts resolution to 720p.

Native 165Hz is fluid for detailed 5K2K gaming, but lower than some flagship alternatives; 330Hz demands a drop to 2560×1080.

The substantial stand keeps the display stable with minimal wobble.

The stand is solid enough in ordinary use but the big panel can wobble when touched or operated.

AI picture tools are available as helpful extras for players who like assistance adjusting game visuals.

Automatic picture adjustment may suit hands-off users, but it can upset creators who need stable color and brightness settings.

Several HDR presets offer different compromises between output and accuracy; Console HDR receives particular praise for balancing them.

Different HDR presets offer distinct brightness and saturation looks, although none combines every desirable accuracy characteristic.

Elite competitive players get ultra-clear motion and extremely low latency, especially when they can exceed 300fps. The 720Hz mode is an optional niche tradeoff.

Very low lag and optional 330Hz speed help fast shooters, but the lower-resolution picture and large form factor make it conditional for esports.

Full-bandwidth DisplayPort and two HDMI 2.1 inputs are strong gaming choices, but the missing USB-C and KVM reduce its appeal for laptop and dual-computer users.

Modern DisplayPort, HDMI, USB-C, and USB-A ports cover many setups, though a missing KVM and certain USB routing limitations temper flexibility.

The updated subpixel arrangement makes text clearer than on older WOLEDs, but small fonts can still look soft or show colored edges compared with LCDs.

High pixel density makes text generally crisp, although white-subpixel fringing is still visible to some people; RGB-stripe rivals can look cleaner.

Small highlights can look unusually bright and impactful, although brighter settings may exaggerate their luminance or lose some intended tonal balance.

Bright effects look striking and fine HDR details generally remain visible, but aggressive tone-mapping settings can sacrifice accuracy.

Vivid OLED color, contrast and HDR make cinematic games attractive, but players staying at lower frame rates may get similar picture quality from cheaper OLED monitors.

Atmospheric and cinematic games flourish on the large, sharp OLED, with high contrast and impressive HDR lighting.

The wide gamut gives games vivid colors and substantially improves on older WOLED generations. Native SDR colors can oversaturate without an appropriate gamut clamp.

Coverage of modern wide color spaces is extensive, producing vibrant games and HDR imagery even if a few saturated colors remain outside its reach.

Fast-moving targets and fine details remain remarkably legible, especially at 540Hz. The 720Hz setting raises clarity further for players willing to give up sharpness.

Instantaneous OLED transitions produce remarkably crisp motion, especially at 330Hz, with some refresh-rate limitations relative to faster OLEDs.

Electricity use compares reasonably with other extreme-refresh OLEDs, though 280Hz Tandem models use less.

Tandem WOLED has surprisingly restrained consumption in full-white usage for a panel this large.

The native 1440p image looks crisp in games, especially through the glossy coating. It cannot match 4K pixel density for small text.

Fine detail in games and desktop apps is one of its signature strengths, particularly compared with 3440×1440 ultrawides.

Dark scenes can flicker when frame rates swing. The anti-flicker option reduces the problem but does not completely remove it and may limit the top refresh rate.

Frame-rate swings can cause visible flickering in dark scenes, especially in the 330Hz mode, without an anti-flicker adjustment to mask it.

HDMI supports downscaled 4K/120Hz and key console gaming features; ELMB at 120Hz is a bonus. Lack of speakers and Dolby Vision may require compromises.

Modern consoles work well with the display at 16:9, although their lack of ultrawide output means black sidebars.

The 720p boosted mode looks soft, while some pixel-mapping choices behave inconsistently with Windows timing.

AI upscaling can sharpen certain low-resolution console signals, but PC use is inconsistent or impractical and cannot replace modern GPU upscaling.

Very high frame rates take exceptional hardware, so an ordinary PC may not exploit the advertised refresh.

Driving eleven million pixels at high frame rates requires substantial graphics horsepower, so weaker systems will need major compromises.

Height, tilt, swivel and pivot give flexible viewing positions, though some reviewers would welcome more height travel.

Height, tilt, and swivel help tailor ergonomics; some users found the height mechanism stiff or noted wobble during adjustments.

An ambitious OLED gaming monitor that earns strong praise for pairing exceptional speed with a rich image. Its high price and specialist refresh rates limit its appeal.

Its cinematic OLED image and unusually useful 39-inch format impress strongly, though price and several feature compromises limit the value proposition.

The panel produces outstanding OLED blacks and retains more depth under ambient lighting than many competing panel and coating combinations.

True OLED blacks look inky and deep, with Tandem WOLED generally retaining their depth under ambient light better than QD-OLED rivals.

OLED pixel-level illumination avoids the halos and backlight bleed that can affect locally dimmed LCDs.

Independent OLED pixels eliminate the halos and backlight blooming that can appear on LCD and Mini-LED screens.

Device compatibility works especially well in supported gaming or desktop scenarios, helping the monitor feel polished and capable.

The monitor accommodates PC, Mac, and current console connections, even though each uses different optimal display modes.

Firmware updateability is useful in some scenarios, but there are compromises to consider depending on how the display is used.

LG’s companion software adds access to firmware updating and useful display controls.

Input lag works especially well in supported gaming or desktop scenarios, helping the monitor feel polished and capable.

Input lag is very low in the gaming presets and main refresh modes, although certain picture modes and low-rate dual-mode inputs add delay.

Fourth-generation Tandem WOLED improves brightness, gamut and ambient-black performance over older WOLED designs while retaining extremely fast response times.

The fourth-generation Tandem WOLED panel offers deep pixel-level blacks, much stronger brightness than older WOLED ultrawides, and rich color.

The monitor offers exceptional 1440p performance, wide PC sync support and usable full-speed connectivity even with some older graphics cards.

PC gaming is excellent with a sufficiently powerful GPU, unlocking full 21:9 views, 5K2K detail, and rapid OLED motion.

Near-instant OLED pixel transitions provide clean, responsive motion across refresh rates with little overshoot.

Extremely fast pixel transitions keep moving objects clear with little conventional ghosting or smearing.

A low-blue-light menu is provided, but those modes cannot be used alongside every brightness setting.

A warmer Reader mode and hardware low-blue-light provisions make lengthy text sessions more comfortable.

The sturdy stand feels premium, although the transparent rear shell flexes more than conventional ROG designs.

Materials and construction are generally solid, although the large display can move on its stand when nudged.

Silver styling, cutouts, translucent rear housing and blue lighting stand out from typical gaming screens, attracting enthusiastic praise.

A restrained chassis, slim bezels, and understated stand give the large OLED a clean, polished appearance.

ASUS DisplayWidget gives convenient control of monitor options from the computer and avoids repeated trips through the on-screen menu.

LG’s desktop software makes adjusting settings easier than using the monitor controls, despite a brief loading delay.

Precision color and gamut adjustments can yield very accurate sRGB performance.

Hardware calibration and selectable sRGB/DCI-P3 presets give unusually flexible options for tailoring color, despite some locked settings.

Default HDR modes can track content closely, but turning brightness up can overbrighten highlights, while other modes roll off or darken details.

HDR presets trade accuracy against brightness and saturation, with some modes overbrightening shadow and midtone content.

Brightness and additional image settings remain adjustable in HDR when the appropriate option is enabled, allowing useful control over the effect.

High, low, and uniform brightness options provide useful control, but achieving the best balance requires choosing settings for the content.

The 720Hz mode is conveniently accessible from a dedicated control and can return to native operation without complicated setup, though some pixel-mapping configurations need attention.

Mode switching is generally convenient, though one review encountered rare Windows layout problems when leaving dual-mode.

The newer Tandem OLED panel is among the brightest high-refresh OLEDs tested, in both SDR and HDR. Some modes sacrifice peak output for steadier or more accurate brightness.

For an OLED ultrawide, brightness is excellent in both SDR and HDR, although sunny windows and larger bright scenes can still expose limits.

Uniform Brightness mode can stop distracting window-size-related luminance changes, but maximum brightness or certain features can reintroduce noticeable shifts.

Uniform brightness controls tame distracting OLED luminance changes, though brighter presets can still dim as content changes.

The joystick-driven menu is fast and extensive, though its styling is ordinary and a few settings require learning their interactions.

The on-screen controls are approachable and the LG software simplifies management, although some menu choices and the interface style divide opinion.

VRR support works across a broad refresh range, with consistently fast OLED response; its main caveat is possible flicker during frame-rate swings.

Adaptive sync works smoothly in tested gaming scenarios, helping avoid tearing and supporting variable frame rates.

There is no built-in KVM switch, limiting convenient sharing between two connected computers.

A built-in KVM is missing, disappointing those hoping to share peripherals between multiple computers.

Colors can look highly accurate in calibrated or sRGB modes, but default wide-gamut SDR settings can oversaturate. Fine tuning helps with serious color work.

The sRGB and calibrated modes can be accurate, but default wide-gamut settings may oversaturate SDR colors and some presets require tuning.

Tandem OLED delivers impressive HDR contrast and highlight brightness, often ahead of older OLED models. The highest-brightness configurations can sacrifice accurate tone tracking.

Tiny highlights look punchy against OLED blacks and HDR games can be spectacular; mode calibration and full-screen luminance are not flawless.

High-bandwidth DisplayPort is useful for high-refresh PC setups, and older DP 1.4 graphics cards can still drive the full mode with DSC.

Full-bandwidth DisplayPort 2.1 UHBR20 is a standout, capable of 5K2K at 165Hz without relying on compression from compatible hardware.

Dynamic shadow boost can raise dark-area visibility without brightening the entire image as aggressively as a simple fixed boost.

The black stabilizer can make dark objects easier to distinguish without unnecessarily lifting the OLED black floor.

Per-pixel lighting makes bright and dark objects coexist without halos, lending games a dramatic sense of depth.

Pixel-level OLED control delivers extraordinary contrast and depth, especially alongside bright effects in otherwise dark scenes.

The Tandem OLED panel brings vivid colors, strong brightness, and inky blacks that make games look striking. Even at 1440p, the overall picture impresses.

Image quality is outstanding with razor-sharp detail, brilliant OLED blacks, and impactful color and HDR.

Greyscale tracking is acceptable overall but varies with preset and factory settings.

Gamma is reasonably controllable, but several factory and HDR settings shift dark or midtone brightness away from the intended target.

The reduced esports-size window works, but the small active area and coarse lower-resolution image are awkward on such a large panel.

The 21:9 format expands game views and workspace substantially; standard 16:9 inputs need side borders rather than full-screen stretching.

A dedicated black-frame-insertion mode is missing, leaving a gap for gamers who want further sample-and-hold blur reduction.

ROG lighting is configurable and visually distinctive, although some consider the projected desk logo unnecessary.

A large cutout in the stand provides a simple path for routing cables behind the monitor.

The gentler 1500R curve draws in the edges for immersive play without the distortion and discomfort associated with LG’s earlier 800R curves.

Black-frame insertion improves motion clarity at 120Hz or 270Hz, but requires fixed refresh, disables VRR and HDR, and can add inconvenience or latency.

Near-instant transitions leave very little ghosting, trailing or overshoot even at extreme refresh rates.

The rear can become noticeably hot after extended sessions, although high heat is understandable for this demanding panel.

The internal power supply avoids an extra desk or floor power brick and simplifies cable clutter.

The monitor worked reliably with a Mac, including dual-mode, making it practical as part of a mixed Mac/PC desk.

The wide color gamut helps with images, although Adobe RGB specialists must profile the display rather than rely on a built-in mode.

The unique finish and high-end presentation feel special, with a minor caveat about the plastic rear housing.

The Neo Proximity Sensor is praised for blanking the screen when you leave and restoring the image promptly when you return, reducing idle static-image exposure.

The best HDR and SDR looks can require separate picture presets, creating extra switching work for mixed media use.

Audio is serviceable at ordinary volumes but lacks bass and can turn thin with demanding music or movie soundtracks.

The 21:9 curved screen supplies a wide field of view and deep immersion, especially in games that natively support ultrawide layouts.

USB-C video and up to 90W charging make a convenient connection for compatible laptops and other desk devices.

The small USB-A hub adds convenience, although routing its upstream signal through USB-C may complicate some desktop/laptop combinations.

OLED viewing remains wide with little loss of image quality at ordinary off-axis positions, though one test noted a green tint at more extreme angles.

FreeSync and G-SYNC-compatible operation help limit tearing across a broad range of PC and console refresh rates.

AI audio enhancement receives mixed-to-negative reactions: voices may become clearer, but compression artifacts and compatibility limits reduce its usefulness.

The uniform-brightness setting keeps the image steadier when content changes, at the cost of limiting maximum output.

Colors are impressive overall, but the white-subpixel design cannot match the brightest saturated colors available from some QD-OLED competitors.

The DisplayPort bandwidth allows native 5K2K at the full refresh rate without DSC, whereas other inputs may still need compression.

A simulated 24.5-inch screen helps players who prefer a compact competitive field of view.

Local dimming performance works especially well in supported gaming or desktop scenarios, helping the monitor feel polished and capable.

The internal cooling fan is nearly inaudible in normal use, with noise noticeable only at extremely close range.

Displaying two inputs at once helps multi-device use, though refresh rate can drop when sharing the panel between a Mac and PC.

Dolby Vision is missing, even though HDR10 works over supported console inputs.

Reliability over time is useful in some scenarios, but there are compromises to consider depending on how the display is used.

The stand assembles through a straightforward slot-and-secure process.

The 39-inch format gives noticeably more vertical presence than 34-inch ultrawides without the imposing dimensions of a 45-inch panel.