Gigabyte MO32U24 OLED: 4K at 240Hz on an OLED Panel Ideal for Gaming
There is a category of monitors that has redefined the concept of "premium" in gaming over the last two years: that of 32-inch QD-OLED panels in 4K with high refresh rates. Gigabyte has already ventured down this path with the MO32U, which we reviewed last year and found to be a solid and convincing offering for the most demanding gamers. The new MO32U24 inherits the same basic philosophy with OLED panel visual quality, a sober design, advanced gaming features, and elevates it to the next level with a refresh rate increasing from 165Hz to 240Hz. This update, as we will see, makes a significant difference.
A Familiar Design with an Important Step Forward
Those who read our review of the Gigabyte MO32U will find the MO32U24 very familiar. The two monitors share the same design setup: a 32-inch QD-OLED panel produced by Samsung, a 4K UHD resolution of 3840×2160 pixels, a minimalist design with a super-thin bezel and fully adjustable stand, the same gaming feature set, and the same OLED management philosophy with the OLED Care system. The substantial difference lies in the refresh rate: the MO32U24 raises the refresh rate from 165Hz to 240Hz, with all the resulting improvements in perceived fluidity and overall system latency.
This is a logical and well-calibrated evolution. Gigabyte has not overhauled a product that was already performing well but has updated the most relevant parameter for high-intensity competitive gaming. The result is a monitor catering to the same audience as its predecessor, that is, demanding gamers who do not want to choose between visual quality and performance, but can now also satisfy those who consider 165Hz a starting point rather than an endpoint.
The Panel: QD-OLED 4K at 240Hz
The MO32U24 is based on a 31.5-inch QD-OLED panel with a resolution of 3840×2160 pixels and a density of 140 PPI. The QD-OLED technology combines the advantages of traditional OLED with absolute blacks, infinite contrast, and extremely fast response times, paired with a quantum dot layer that greatly expands color space coverage, bringing the color performance of these panels closer to that of higher-end direct-emission OLED displays. The visual result is immediately perceptible: deep, saturated, and precise colors, high brightness in highlights, and blacks that have no comparison with any LCD backlit panel.
The maximum refresh rate of 240Hz is a significant leap from the predecessor's 165Hz. In practice, this means gaming with less perceived motion blur and lower display latency. The monitor is compatible with AMD FreeSync Premium Pro and NVIDIA G-Sync Compatible, which synchronize the refresh rate with that of the graphics card to eliminate tearing without introducing artificial latency. The claimed response time is 0.03ms GTG, the theoretical limit of this panel technology.
Subpixel Structure
Like all QD-OLED panels, the MO32U24 does not adopt the classic horizontally adjacent RGB subpixel structure found in IPS and VA panels. The Samsung panel uses a triangular arrangement of the three subpixels (red, green, blue), where the subpixels are not aligned in vertical columns but instead arranged to form an alternating triangular grid. In this configuration, the subpixels of each color are not always located in the same vertical position within the pixel but shift slightly up and down in a repeated pattern.
This structure has two practical consequences to be aware of. The first is positive: it helps reduce certain types of visual artifacts typical of high-density displays and improves overall color rendering. The second concerns the perceived sharpness of text: on some small characters and high spatial frequency graphical elements, the rendering can appear slightly less sharp compared to a traditional IPS RGB stripe panel, especially in the case of white text on a dark background. This is a known and accepted compromise in this category of panels, and both in gaming and multimedia viewing, it remains imperceptible in the vast majority of situations. However, those who primarily use the monitor for working on text or spreadsheets for many hours may notice some difference compared to a traditional IPS.
Design and Ergonomics
The MO32U24 continues the aesthetic tradition of its predecessor: minimalist design, ultra-thin bezels on three sides, and a clean, unobtrusive stand. It is a stylistic choice that stands out from the trend of showcasing LEDs, angular shapes, and illuminated logos typical of many gaming monitors and rewards those who build a neat and understated setup. The monitor integrates well into both a gaming desk and a work environment, without clashing in either context.
The stand is fully adjustable: it offers a height adjustment of 130mm, a tilt from -5° to +21°, a horizontal rotation of ±15°, and a pivot function from 0° to 90° counterclockwise. VESA mount compatibility allows you to replace the included stand with an articulated arm for those requiring a more flexible setup. The construction conveys solidity, and the quality of materials is in line with the product's price range.
Connectivity and Ports
The port setup of the MO32U24 is comprehensive and well-thought-out for mixed gaming and productivity use. At the rear, we find two HDMI 2.1 ports, one DisplayPort 1.4, a USB-C port with DP Alt Mode and 18W Power Delivery support, two USB 3.2 Type-A ports, one USB 3.2 Type-B upstream port, a 3.5mm headphone jack, and a microphone jack. There are also two built-in 5W speakers.
The USB-C port with 18W Power Delivery is sufficient to charge a smartphone or power small devices, but it is not suitable for adequately powering a work laptop, a limitation already present in the predecessor and one worth knowing before purchasing if you intend to use the monitor as a hub for a laptop. The HDMI 2.1 ports support 4K signal transmission at 240Hz, making the monitor compatible with the latest gaming consoles that support high refresh rate output.
Image Quality and HDR
Like the previously analyzed MO32U, the MO32U24 expresses the color characteristics typical of QD-OLED technology. In SDR mode, the panel offers excellent color space coverage, with the DCI-P3 color gamut nearly completely covered.
In HDR mode, the panel shows the characteristic behavior of OLED: a peak luminance exceeding 1000 cd/m² on 1% sampling areas, with a bright and rich tonal rendering that remains one of the best arguments for choosing an OLED panel over any other technology today. The absolute blacks achieved by completely turning off the pixels generate an infinite contrast level that no LCD backlit panel, no matter how sophisticated, can approach. The monitor has obtained VESA ClearMR 9000 certification in HDR mode, which confirms the claimed motion performance.
Response Times and Latency: The Tests
The tests we conducted confirm what OLED technology promises. The measured GtG response time of the MO32U24 stands at 0.086ms, a value practically identical to that of the MSI MPG 271QR QD-OLED X50 at 500Hz, and better than all other monitors in our benchmark, including OLED panels operating at higher frequencies such as the ASUS ROG Swift PG32UCDP at 480Hz. This figure highlights how OLED technology quickly reaches a physical limit in pixel switching speed that is not significantly influenced by further increases in refresh rate: beyond a certain threshold, it is the panel itself that imposes the floor.
This data is crucial not only because it reduces the panel's reaction times, but also because it offers crisp and stable images even in the case of quick movements typical in gaming.
On the display latency front, the MO32U24 at 240Hz has a latency of 2.5ms, a result in line with the MSI MGP321UX QLED operating at the same frequency and significantly better than lower-frequency panels. As expected, monitors with higher refresh rates show lower latencies, but the MO32U24 is competitively positioned in the 240Hz range where the vast majority of users operate.
The combination of ultra-fast response times and contained latency translates into a visual experience that immediately stands out in gaming: movement on the screen is sharp and stable, even in the most frantic scenes, without the trailing or ghosting perceived on LCD panels, even in the fastest versions. For competitive titles where every frame counts, the MO32U24 offers a real and measurable technical advantage.
Colorimetric and Tonal Analysis
The colorimetric and tonal analysis of the Gigabyte MO32U24 monitor was conducted, as usual, with the Calman suite from Portrait Displays and i1 Display Pro and i1 Pro probes on the monitor's Native profile. Below are the findings in SDR and HDR.
RGB Balance
Gigabyte MO32U24 - Native SDR
Measured with Calman from Portrait Displays
SDR Gamma Curve
Gigabyte MO32U24 - Native SDR.
Measured Luminance.
Standard Gamma 2.2
Contrast Ratio: ∞ : 1
Measured with Calman from Portrait Displays
CIE 1931 Color Space - Chromatic Coordinates Yxy
Gigabyte MO32U24 - Native SDR.
Measured Gamut
Coverage
Ratio.
REC BT.709 99.83% 145.40%.
DCI P3 D65 99.53% 107.19%.
Adobe RGB 93.98% 107.79%.
BT.2020 76.89% 76.90%.
Measured with Calman from Portrait Displays
DeltaE - Macbeth Color Checker
Gigabyte MO32U24 - Native SDR
Measures made with Calman from Portrait Displays
The gray balance is as flat as could be asked: the three components remain contained between 98% and 101% along the entire scale, with red gradually dropping to about 98.2% at high levels and green rising symmetrically toward 100.6%, while blue remains mostly glued to the reference. Deviations of this magnitude do not produce noticeable tints, and white remains neutral from mid-tones to peak. The luminance of the grayscale describes a trend that closely follows the reference gamma 2.2 curve, with a slight underexposure in mid-tones that does not alter the tonal progression, peaking at around 250 cd/m². The contrast ratio of ∞:1 confirms an absolute black behavior expected from a self-emissive pixel panel.
On gamut, the coverage is for creative monitor use: 99.53% of DCI-P3 and 93.98% of Adobe RGB. In practice, we have nearly complete coverage of the P3 space, with Adobe RGB being the only space not fully closed, a typical limitation of panels with these primaries.
Color fidelity wraps up the picture: the average DeltaE of the Color Checker samples is below 2 (around 1.5), and no single sample exceeds the visibility threshold of 4: the worst case is the "blue sky" at about 3.4. Errors undetectable to the naked eye across the entire palette.
RGB Balance
Gigabyte MO32U24 - Native HDR
Measured with Calman from Portrait Displays
HDR Gamma Curve
Gigabyte MO32U24 - Native HDR.
Measured Luminance.
SMPTE2084 HDR Gamma
Contrast Ratio: ∞ : 1
Measured with Calman from Portrait Displays
CIE 1931 Color Space - Chromatic Coordinates Yxy
Gigabyte MO32U24 - Native HDR.
Measured Gamut
Coverage
Ratio.
REC BT.709 99.81% 145.27%.
DCI P3 D65 99.49% 107.09%.
Adobe RGB 93.90% 107.69%.
BT.2020 76.81% 76.83%.
Measured with Calman from Portrait Displays
DeltaE - Macbeth Color Checker
Gigabyte MO32U24 - Native HDR
Measured with Calman from Portrait Displays
In HDR mode, the RGB balance expands a bit more than in SDR, but remains controlled: beyond 60% stimulation, blue drops to about 97.4% and red to 98.4%, with green slightly rising to 100.8%. This unbalance is contained within 3 percentage points, translating into a slight tendency to a "warm" rendering in highlights, not a marked dominance.
The EOTF curve (HDR gamma) closely follows SMPTE 2084 throughout the grayscale, with the roll-off occurring around 70% of the signal and luminance flattening in clipping at a peak of about 520 cd/m². This is the physical limit of the panel in this measure, with tone mapping managing it without tearing. By setting the menu mode with a peak at 1000 nits, we can achieve a measured luminance exceeding this value, but with a window at 1%. HDR gamut is practically overlapping with SDR, confirming that color volume does not degrade when switching to HDR. Fidelity also holds: average DeltaE around 1.7, all samples below 4, with "light skin" being the highest at about 3.
OSD and Gaming Functions
The OSD menu is accessed via a physical joystick located under the panel, alongside two dedicated physical buttons. One of these is the Tactical Switch, the configurable button that Gigabyte introduced on the predecessor, allowing for quick switching of the display mode—for example, switching from 4K resolution at 32 inches to FHD at 24 inches. This allows emulation of the format favored by competitive players for greater cursor density and readability of interface elements. The other button provides direct access to OLED Care settings.
The OSD offers access to all the most useful gaming functions. Black Equalizer 2.0 allows increasing visibility in dark areas without blowing out highlights, useful in first-person shooters with dark environments. Game Assist offers an on-screen crosshair, FPS counter, and session timer. PiP and PbP (Picture-in-Picture and Picture-by-Picture) allow for displaying two sources simultaneously on the same screen. The integrated KVM feature enables control of multiple connected computers with a single keyboard and mouse, switching from one system to another without shifting cables or peripherals, a particularly convenient function for those alternating between work PCs and gaming PCs on the same desk. Finally, the Dashboard displays real-time system parameters such as CPU temperature, frequencies, memory usage, and FPS.
All this is also accessible via software through the Gigabyte Control Center, which interacts with the monitor via HDMI/DisplayPort or through the included upstream USB cable. The software allows you to manage luminance, contrast, image profiles, and Black Equalizer directly from Windows without touching the physical OSD.
OLED Care and Burn-in Prevention
As on its predecessor, Gigabyte implements OLED Care technology, which uses an AI-based algorithm to reduce the risk of burn-in, the typical problem of organic panels where static elements displayed for long periods leave a permanent trace on the panel. The system operates transparently during use, with minimal interference on the daily visual experience. As an additional guarantee, Gigabyte offers a premium 3-year warranty that explicitly includes coverage for panel burn-in, a choice that demonstrates confidence in the product's durability over time.
Advanced ObsidianShield: The Film that Improves Blacks
One of the innovations that distinguishes the MO32U24 from the previous generation QD-OLED panels is the presence of a proprietary protective layer called Advanced ObsidianShield. This is a film applied to the panel's surface that serves a dual purpose: on one hand, it reduces reflections and absorbs part of the ambient light, increasing the perceived black level by up to 40% compared to previous versions; on the other hand, it preserves saturation and vibrancy of colors even in brightly lit environments, where OLED panels tend to lose depth of contrast. It is a valid answer to one of OLED's historic limitations when used during the day or in well-lit rooms: the absolute black guaranteed by the pixel emission absence is perceived as such only if ambient light does not reflect off the panel's surface. The ObsidianShield measurably reduces this problem.
Gigabyte MO32U24 Gaming Monitor OLED 32” 4K UHD - 3840 x 2160, 240Hz, 0.03ms, 300 cd/m², G-Sync Compatible, FreeSync Premium Pro, Display HDR True Black 500, HDMI 2.1, DisplayPort 1.4
999.48 €
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Gigabyte MO32U2 Gaming Monitor OLED 32” 4K UHD - 3840 x 2160, 240Hz, 0.03ms, 250 cd/m², G-Sync Compatible, FreeSync Premium Pro, Display HDR True Black 400, HDMI 2.1, DisplayPort 1.4
724.49 €
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The film is also physically more resistant than previous versions: the surface hardness increases from 2H to 3H. This detail matters in the long run, especially for those who tend to clean the screen regularly or work in environments where the monitor is exposed to accidental contacts. One last point to note: the OLED VRR Anti-Flicker certification ensures that the activation of VRR necessary to take advantage of FreeSync Premium Pro or G-Sync Compatible does not introduce visible flicker, a well-known issue on some previous generation OLED panels that exhibited perceivable flickering at certain frequency ranges.
Verdict
The Gigabyte MO32U24 OLED is the natural, well-calibrated evolution of one of the best gaming monitors we reviewed in the last year regarding responsiveness and clarity of rapidly moving images. Compared to the MO32U, it offers a higher refresh rate of 240Hz versus 165Hz and retains the OLED visual quality, solid build quality, and rich ecosystem of gaming features. Tests confirm GtG response times of 0.086ms, among the best in the category, and a display latency of 2.5ms that is fully competitive in the 240Hz range. Of course, the subpixel arrangement is not ideal for ensuring the best text readability, but those seeking a gaming monitor that does not force a choice between performance and image quality will find the Gigabyte MO32U24 one of the most compelling answers currently available on the market.