ASUS ROG Strix OLED XG27ACDNG Review – Good Enough for Pro Gamers

Introduction

The ASUS ROG Strix OLED XG27ACDNG is a 27-inch gaming monitor built around Samsung Display’s third-generation QD-OLED panel. It combines a QHD resolution of 2560×1440 with a maximum refresh rate of 360 Hz. Considering the snappy pixel transitions that the OLED technology is known for, the XG27ACDNG is clearly positioned toward competitive gamers who value speed and responsiveness. At the same time, the QD-OLED panel technology promises the usual strengths of self-emissive displays, including high contrast, deep blacks, and wide color coverage. In terms of image quality, ASUS advertises 99% DCI-P3 coverage, true 10-bit color depth, and factory calibration with an average ∆E of less than 2. The monitor is certified for VESA DisplayHDR 400 True Black and can reach peak brightness levels of up to 1,000 cd/m² on small highlights, and its typical brightness is specified at 275 cd/m². These figures place it in line with other QD-OLED panels of its generation. In fact, identical specs can be found on several other gaming OLEDs, such as the AORUS FO27Q3, Dell Alienware AW2725DF and Samsung Odyssey OLED G6 (G60SD), which all use the same panel.

ASUS equips the XG27ACDNG with a custom heatsink designed to improve thermal efficiency, while the OLED Care+ suite introduces a range of burn-in mitigation features. In terms of connectivity, the XG27ACDNG offers DisplayPort 1.4 with DSC (Display Stream Compression), two HDMI 2.1 inputs, and a USB-C port that supports DisplayPort Alt Mode alongside 90 W of power delivery. A USB hub with two downstream USB-A ports and an integrated KVM switch extends the monitor’s utility in multi-device setups. Ergonomic adjustments include tilt, swivel, height, and pivot support, and the stand is complemented by a standard 100×100 VESA mount option. Some of these features—along with the Aura Sync lighting integration—are what sets the ASUS ROG Strix OLED XG27ACDNG apart from its direct competitors and makes it not feel like their carbon copy. The scene is set for a compelling high-end gaming monitor, so let’s find out if this $650 beast has what it takes to prove its worth.
Specifications
| ASUS ROG Strix OLED XG27ACDNG | |
|---|---|
| Screen Size | 26.5″ (marketed as 27″) |
| Native Resolution | 2560×1440 (16:9), ~111 PPI |
| Panel Technology | Samsung Display QD-OLED (3rd generation), 10-bit |
| Refresh Rate | 360 Hz (48–360 Hz VRR range) |
| Curvature | No |
| Screen Coating | Matte, anti-glare |
| Supported Adaptive Synchronization | AMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible |
| Brightness | 275 cd/m² typical, up to 1,000 cd/m² peak (HDR, small window) |
| Contrast | 1,500,000:1 (static, OLED native) |
| Viewing Angles | 178° (horizontal) / 178° (vertical) |
| Response Time | 0.03 ms GtG (quoted) |
| HDR | HDR10, VESA DisplayHDR 400 True Black |
| Adjustability | Height, tilt, swivel, pivot |
| Video Inputs | 1× DisplayPort 1.4 (DSC), 2× HDMI 2.1 |
| USB-C | 1× USB-C with DisplayPort Alt Mode and 90 W Power Delivery |
| USB Hub | 2× USB-A (USB 3.2 Gen 1) |
| Audio | 1× 3.5 mm headphone jack |
| Speakers | No |
| VESA Mounting | 100×100 |
| Dimensions & Weight | 614 × 420–540 × 255 mm, 6.9 kg (with stand) |
| Extras | OLED Anti-Flicker, OLED Care+ features, KVM switch, Aura Sync lighting |
