ASUS ROG Strix XG309CM
29.5" IPS · 2560× 1080 · 94 PPI
Optimal Viewing Distance
93cm
Retina distance: 92.7cm / 36.5in
Too Close
< 28cm
Perfect Zone
93cm
Good Zone
1.4m
Acceptable Zone
2.3m
Too Far
3.7m
93cm Perfect Zone
Retina quality — pixels are invisible at this distance.
1.4m Good Zone
Sharp image — slightly past the ideal distance but still excellent.
2.3m Acceptable Zone
The screen appears smaller — you're starting to miss fine details.
3.7m Too Far
You're not using your screen's full resolution. Move closer.
Specifications
| Brand | ASUS |
|---|---|
| Model | ROG Strix XG309CM |
| Screen Size | 29.5" |
| Resolution | 2560×1080 |
| Panel | IPS |
| Refresh Rate | 220 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium |
| Response Time | 1 ms GTG |
| HDR Certification | None |
| SDR Brightness | 300 nits |
| HDR Peak Brightness | 300 nits |
| Contrast Ratio | 1:1,000 |
| Ports | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 15 W |
| Color Gamut | sRGB 110% |
| Viewing Angle | 178° — Excellent |
| Pixel Density (PPI) | 94 |
| Aspect Ratio | 21:9 |
| Year | 2022 |
Category Ranking
Pixel Density (PPI)
#65 / 67in category
93 PPI94 PPI224 PPI
HDR Peak Brightness
#65 / 67in category
250 nits300 nits2000 nits
Refresh Rate220 Hz
StandardHighUltra
Compare with...
Frequently Asked Questions
What is the optimal viewing distance for the ASUS ROG Strix XG309CM?
The optimal viewing distance for the ASUS ROG Strix XG309CM (29.5") is approximately 93cm. At this distance, individual pixels become invisible to the human eye.
What is the PPI of the ASUS ROG Strix XG309CM?
The ASUS ROG Strix XG309CM has a pixel density of 94 PPI (pixels per inch) with a 2560×1080 resolution on a 29.5" display.
Is the ASUS ROG Strix XG309CM good for desktop work?
With 94 PPI and a 29.5" IPS display, the ASUS ROG Strix XG309CM is good for desktop work when viewed from the recommended distance of 93cm.
Methodology & Sources
Formula: Retina distance (cm) = 3438 / PPI. Displayed values are rounded for readability.
Sources: Official manufacturer spec sheets and product pages. Specs are normalized before comparisons.
Last updated:
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