LG's 27GX790A OLED Display: Brilliant, Vibrant, and Quick in Performance
The LG 27GX790A monitor offers very good default color accuracy, with minor hue errors in magenta and yellow, as well as slight oversaturation in the red primary color. However, its grayscale performance requires calibration for improved consistency and color fidelity.
Out of the box, the 27GX790A's grayscale accuracy is somewhat inconsistent, particularly in magenta and yellow hues. Compared to other gaming monitors like the Alienware AW3425DW, which boasts near-perfect color accuracy and grayscale performance, the 27GX790A requires calibration to reach similar levels of grayscale accuracy. The Alienware model achieves very low grayscale errors (below 1 dE after minor calibration) and nearly perfect gamma, exceeding what is typical for many gaming monitors.
In terms of color accuracy, the 27GX790A's gamma tracking improves notably with calibration, making it a competitive offering among gaming OLED monitors. The 27GX790A's gamma tracking shows a small 0.14 range of values and a 2.27% deviation from the reference, with an actual value of 2.25, which is excellent performance.
The 27GX790A's default color results have hue errors in magenta and yellow, and a slight oversaturation in the red primary. However, calibration reduces all errors below the visible threshold, resulting in a grayscale score of 1.40dE.
The 27GX790A monitor has 13 picture modes and boasts almost 100% coverage of DCI-P3, making it plenty colorful. However, it lacks a Quantum Dot layer, resulting in less color volume compared to other monitors.
If you plan to color grade with the 27GX790A, calibration is necessary to correct the color issues in the sRGB mode. After calibration, the 27GX790A performs on par with the best screens tested, offering visually improved color accuracy.
In summary, the LG 27GX790A offers competitive color and grayscale accuracy among gaming OLED monitors but benefits from calibration to optimize performance, especially in grayscale. While it may not match the near-perfect color fidelity of some premium gaming OLEDs out of the box, calibration makes it a strong contender in the market.
[1] Source for default color accuracy and grayscale performance: [URL] [2] Source for comparison with Alienware AW3425DW: [URL]
The LG 27GX790A's initial performance with smart-home devices like monitors may not match the near-perfect color fidelity of some premium models, but gadgets such as calibration tools can bring its color and grayscale accuracy on par with the best screens in the market. The technology of calibration offers a significant improvement in grayscale performance and reduces hue errors in magenta and yellow, making the 27GX790A a strong contender among gaming OLED monitors.
