Asus Zenbook 14X OLED (Q420) vs Vivobook S 15 OLED (K5504)
Please select specific configurations for the laptops to get a more accurate comparative review
Review
Performance
System and application performance
Gaming
Performance in popular 3D games
Display
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Connectivity
Ports, webcam and other interfaces
Portability
Design, materials, durability and usability
Pick the usage scenario that best matches your needs
Value for money (Beta)
Key Differences
Advantages of the Asus Zenbook 14X OLED (Q420)
- Higher screen refresh rate: 120 versus 60 Hz
- Slightly easier to carry: weighs 140 grams less (around 0.31 lbs)
- Higher number of cutting-edge USB Type-C ports: 2 versus 1
- Thinner bezels and 3% higher screen-to-body ratio
- Display has support for touch input
- Provides 83% higher max. screen brightness: 550 vs 300 nits
- 66% sharper screen – 234 versus 141 pixels per inch (PPI)
- Much smaller footprint: 12% more compact case (112.5 vs 127.7 square inches)
Advantages of the Asus Vivobook S 15 OLED (K5504)
- Includes an old-school USB-A port
Tests and Specifications
Comparison table of test results and technical specsCase
| Weight | 1.56 kg (3.44 lbs) | 1.7 kg (3.75 lbs) |
| Dimensions | 321.8 x 225.6 x 16.9 mm 12.67 x 8.88 x 0.67 inches |
359.3 x 229.4 x 17.9 mm 14.15 x 9.03 x 0.7 inches |
| Area | 726 cm2 (112.5 inches2) | 824 cm2 (127.8 inches2) |
| Screen-to-body ratio | ~84% | ~81.4% |
| Side bezels | 4.8 mm | 7 mm |
| Colors | Gray | White, Black, Silver, Blue |
| Material | Aluminum | Top: Aluminum Middle: Plastic Bottom: Plastic |
| Transformer | No | No |
| Opening angle | 180° | 180° |
Size comparison
| Cooling system | Active | Active |
| Vapor chamber | No | No |
| Liquid metal | No | No |
| Number of fans | 1 | 2 |
| Noise level (max. load) | 47 dB | - |
Display
| Size | 14.5 inches | 15.6 inches |
| Type | OLED | IPS LCD |
| Refresh rate | 120 Hz | 60 Hz |
| Adaptive refresh rate | - | No |
| PPI | 234 ppi | 141 ppi |
| Aspect ratio | 16:10 | 16:9 |
| Resolution | 2880 x 1800 pixels | 1920 x 1080 pixels |
| HDR support | Yes, HDR10 | No |
| Sync technology | No | No |
| Touchscreen | Yes | No |
| Coating | Glossy | Glossy |
| Ambient light sensor | Yes | Yes |
Screen space comparison
Vivobook S 15 OLED (K5504)
15.6″ (16:9 ratio) = 104 in2
Zenbook 14X OLED (Q420)
14.5″ (16:10 ratio) = 94.5 in2
~10% more screen space
| Contrast | 319710:1 | - |
| sRGB color space | 100% | 100% |
| Adobe RGB profile | 99.1% | - |
| DCI-P3 color gamut | 99.6% | - |
| Response time | 1 ms | - |
Max. brightness
Battery
Capacity
| Full charging time | 2:00 hr | 1:40 hr |
| Battery type | Li-Ion | Li-Ion |
| Replaceable | No | No |
| Fast charging | Yes | Yes |
| Charging via USB (Power Delivery) | Yes | Yes |
| Charging port position | Right | Right |
| Charge power | 90 W | 90 W |
| Weight of AC adapter | 390 grams | 390 grams |
CPU
CPU name
| Base frequency | 2.6 GHz | 2.6 GHz |
| Turbo frequency | 4.7 GHz | 4.7 GHz |
| Cores | 12 (4P + 8E) | 12 (4P + 8E) |
| Threads | 16 | 16 |
| L3 Cache | 18 MB | 18 MB |
| Integrated GPU | Intel Iris Xe Graphics (80EU) | Intel Iris Xe Graphics (80EU) |
| Fabrication process | 10 nm | 10 nm |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Cinebench 2024 (Single-Core)
Cinebench 2024 (Multi-Core)
Graphics Card
GPU name
| TGP | 15 W | 15 W |
| Type | Integrated | Integrated |
| Fabrication process | 10 nm | 10 nm |
| GPU base clock | 300 MHz | 300 MHz |
| GPU boost clock | 1450 MHz | 1450 MHz |
| FLOPS | 1.9 TFLOPS | 1.9 TFLOPS |
| Memory size | System Shared | System Shared |
| Memory type | LPDDR5 | LPDDR5 |
| Memory speed | 4.8 Gbps | 4.8 Gbps |
| Shading units (cores) | 640 | 640 |
| Texture mapping units (TMUs) | 40 | 40 |
| Raster operations pipelines (ROPs) | 20 | 20 |
| GPU performance | 1.9 TFLOPS | 1.9 TFLOPS |
GPU Benchmarks
Steel Nomad Lite Score
Expected FPS based on average performance across 9 popular games. Details
RAM
RAM size
| Channels | 2x4 GB | 2x4 GB |
| Clock | 4800 MHz | 4800 MHz |
| Type | LPDDR5 | LPDDR5 |
| Upgradable | No | No |
Storage
Storage size
| Bus | PCI-E Gen 4.0 (4x) | PCI-E Gen 4.0 (4x) |
| Storage type | SSD (M2) | SSD (M2) |
| Channels | 1x256 GB | 1x256 GB |
| Upgradable | Yes | Yes |
| Total slots | 1 | 1 |
| NVMe | Yes | Yes |
Sound
| Speakers | 2.0 | 2.0 |
| Dolby Atmos | Yes | No |
| Microphones | 2 | 2 |
Connectivity
| Wi-Fi standard | v6E | v6E |
| Bluetooth | v5.3 | v5.3 |
| Fingerprint | No | Yes |
| Infrared sensor | Yes | No |
| Optical drive | No | No |
| Webcam | Above the display | Above the display |
| Webcam resolution | 1920 x 1080 | 1920 x 1080 |
| USB-A | 1x USB 3.2 | 2x USB 3.2 |
| USB Type-C | 2x USB 4.0 | 1x USB 4.0 |
| Thunderbolt | Thunderbolt 4 | Thunderbolt 4 |
| HDMI | 1x HDMI 2.1 | 1x HDMI 1.4 |
| DisplayPort | No | No |
| VGA | No | No |
| Audio jack (3.5 mm) | Yes | Yes |
| Ethernet (RJ45) | No | No |
| SD card reader | No | Yes |
| Proprietary charging port | No | Yes |
Input
| Keyboard type | Island | Island |
| Numpad | No | No |
| Backlight | Yes | Yes |
| Key travel | 1.4 mm | 1.35 mm |
| Surface | Glass | Plastic |
| Windows Precision | Yes | Yes |
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.
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Total votes: 7