ASUS ROG Strix XG309CM vs ASUS ROG Swift PG42UQ 42"
Side-by-side comparison of viewing distance, PPI, and specifications
ASUS ROG Swift PG42UQ 42"
41.5" · 3840×2160 · OLED
Optimal Viewing Distance 82cm
Open in calculator →
Category Ranking
Pixel Density (PPI)67in category
ASUS ROG Strix XG309CM94 PPI #65
ASUS ROG Swift PG42UQ 42"106 PPI #64
93 PPI224 PPI
HDR Peak Brightness67in category
ASUS ROG Strix XG309CM300 nits #65
ASUS ROG Swift PG42UQ 42"1000 nits #7
250 nits2000 nits
DCI-P3 Color Gamut
ASUS ROG Swift PG42UQ 42"98% #31
79%100%
Refresh Rate
ASUS ROG Strix XG309CM220 Hz
ASUS ROG Swift PG42UQ 42"138 Hz
StandardHighUltra
Summary
- Sharpness: advantage ASUS ROG Swift PG42UQ 42" — Neither screen reaches retina quality at 65cm. The ASUS ROG Swift PG42UQ 42" gets there at 82cm vs 93cm for the ASUS ROG Strix XG309CM.
- Brightness: advantage ASUS ROG Swift PG42UQ 42" — The ASUS ROG Swift PG42UQ 42" is 50% brighter in SDR (450 vs 300 nits), a noticeable difference for outdoor readability. HDR peak: 1000 vs 300 nits.
Key Differences
| Specification | ASUS ROG Strix XG309CM | ASUS ROG Swift PG42UQ 42" |
|---|---|---|
| Refresh Rate | 220 Hz | 138 Hz |
| Color Gamut | sRGB 110% | sRGB 133% · DCI-P3 98% · Adobe RGB 94% |
| Screen Size | 29.5" | 41.5" |
| Resolution | 2560×1080 | 3840×2160 |
| Pixel Density (PPI) | 94 | 106 |
| Optimal Viewing Distance | 93cm | 82cm |
| Response Time | 1 ms GTG | 0.1 ms GTG |
| SDR Brightness | 300 nits | 450 nits |
| HDR Peak Brightness | 300 nits | 1000 nits |
| Contrast Ratio | 1:1,000 | 1:1,000,000 |
All specifications
| Specification | ASUS ROG Strix XG309CM 2022 | ASUS ROG Swift PG42UQ 42" 2022 |
|---|---|---|
| Screen Size | 29.5" | 41.5" (Better) |
| Resolution | 2560×1080 | 3840×2160 (Better) |
| Pixel Density (PPI) | 94 | 106 (Better) |
| Optimal Viewing Distance | 93cm | 82cm (Better) |
| Panel Type | IPS | OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 21:9 | 16:9 |
| Refresh Rate | 220 Hz (Better) | 138 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium | G-SYNC Compatible |
| Response Time | 1 ms GTG | 0.1 ms GTG (Better) |
| HDR Certification | None | None |
| SDR Brightness | 300 nits | 450 nits (Better) |
| HDR Peak Brightness | 300 nits | 1000 nits (Better) |
| Contrast Ratio | 1:1,000 | 1:1,000,000 (Better) |
| Ports | 1x HDMI · 1x DP · USB-C · USB Hub | 4x HDMI · 1x DP · USB Hub |
| USB-C Power Delivery | 15 W | — |
| Color Gamut | sRGB 110% (Better) | sRGB 133% · DCI-P3 98% · Adobe RGB 94% |
| Year | 2022 | 2022 |
Frequently Asked Questions
Which has better PPI: ASUS ROG Strix XG309CM or ASUS ROG Swift PG42UQ 42"?
The ASUS ROG Swift PG42UQ 42" has 106 PPI compared to 94 PPI for the ASUS ROG Strix XG309CM.
Which has a closer optimal viewing distance?
The ASUS ROG Swift PG42UQ 42" requires 82cm vs 93cm for the ASUS ROG Strix XG309CM to reach retina quality.
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs ASUS ROG Strix XG309CM 2022 · 94 PPI · 29.5" · 220 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs ASUS ROG Swift PG42UQ 42" 2022 · 106 PPI · 41.5" · 138 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs ASUS ROG Strix XG309CM 2022 · 94 PPI · 29.5" · 220 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs ASUS ROG Swift PG42UQ 42" 2022 · 106 PPI · 41.5" · 138 Hz
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.
Comparison winners are calculated metric by metric (higher is better for most specs; lower is better for distance/response time).
Last updated: