Asus ROG monitor speed and pixel density review

Sophia Harris 09/14/2026

Featured image Asus ROG monitor speed and pixel density review

This text is an excerpt from a review focusing on the color accuracy, HDR performance, and overall quality of the Asus ROG Swift PG27UCWM OLED monitor.

Here is a synthesis of the key points:

1. Color Gamut and Accuracy

Testing Method: The review uses Portrait Displays’ Calman software for color gamut and volume testing.
DCI-P3 Coverage: The monitor utilizes Tandem RGB Stripe OLED technology, achieving near-perfect coverage of DCI-P3.
sRGB Performance: The sRGB gamut is noted as slightly undersaturated in red, magenta, and blue, resulting in a score of 91.87%.
Comparison: The monitor shows impressive color gamut errors (1.05dE) when compared to other screens, performing as well as other high-end OLEDs.
Color Volume: Color volume is described as high and nearly equals that of many Quantum Dot displays.

2. HDR Brightness and Contrast

Luminance Modes: The monitor offers different modes for handling HDR content:
Gaming Mode: Delivers the brightest image, peaking at almost 500 nits from a 25% window pattern.
True Black Mode: Provides deeper shadows and better for subdued tones, peaking at around 470 nits.
Grayscale Accuracy: The choice of mode affects the visual appearance: Gaming mode is brighter and has more impact, while True Black mode emphasizes deeper shadows.
HDR Color: The monitor makes full use of its large gamut in HDR content, with an emphasis on warmer tones to give the picture punch.

3. Overall Test Takeaway

Color Accuracy: The PG27UCWM is very color-accurate out of the box, although the reviewer notes that attention is needed in the gamma department.
HDR Performance: The monitor delivers significant HDR impact and is slightly brighter than its predecessor.
Verdict: The monitor is highly recommended for gamers seeking a premium experience, offering excellent grayscale and color accuracy in both Gaming and True Black modes, and rendering HDR content beautifully.

In summary, the review positions the Asus PG27UCWM as a highly capable, vibrant, and color-accurate gaming monitor that excels in HDR performance, despite minor compromises in gamma settings.