Asus Zenbook 14 OLED (UM3402) vs Vivobook 14X OLED (K3405)

Please select specific configurations for the laptops to get a more accurate comparative review
Display
Battery 75 Wh
CPU
RAM
Storage

Review

Evaluation of Asus Zenbook 14 OLED (UM3402) and Vivobook 14X OLED (K3405) important characteristics
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
Primary usage:

Value for money (Beta)

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Key Differences

What are the key differences between the notebooks
Advantages of the Asus Zenbook 14 OLED (UM3402)
  • Higher screen refresh rate: 90 versus 60 Hz
  • Higher number of cutting-edge USB Type-C ports: 2 versus 1
  • Features a much bigger (~50%) battery – 75 against 50 watt-hours
  • Thinner bezels and 2% higher screen-to-body ratio
  • Provides 100% higher max. screen brightness: 600 vs 300 nits
  • 50% sharper screen – 243 versus 162 pixels per inch (PPI)
  • Better webcam recording quality
Advantages of the Asus Vivobook 14X OLED (K3405)
  • Performs significantly better (up to 5x) in 3DMark Steel Nomad Lite
  • Can run popular games at about 144-197% higher FPS
  • Includes an old-school USB-A port
  • Around 59% better multi-core CPU performance in the Cinebench 2024 test
  • User-upgradable RAM (up to 16GB)
  • High-speed PCI Express Gen 4 interface

Tests and Specifications

Comparison table of test results and technical specs

Case

Weight 1.35 kg (2.98 lbs) 1.4 kg (3.09 lbs)
Dimensions 313.6 x 220.6 x 16.9 mm
12.35 x 8.69 x 0.67 inches
317.1 x 222.5 x 18.9 mm
12.48 x 8.76 x 0.74 inches
Area 692 cm2 (107.3 inches2) 706 cm2 (109.3 inches2)
Screen-to-body ratio ~82.2% ~80.6%
Side bezels 6.1 mm 7.8 mm
Colors Black Black, Silver
Material Aluminum Top: Aluminum
Middle: Plastic
Bottom: Plastic
Transformer No No
Opening angle 180° 140°
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber No No
Liquid metal No No
Number of fans 1 1
Noise level (max. load) 52.5 dB 52.6 dB

Display

Size 14 inches 14 inches
Type OLED IPS LCD
Refresh rate 90 Hz 60 Hz
PPI 243 ppi 162 ppi
Aspect ratio 16:10 16:10
Resolution 2880 x 1800 pixels 1920 x 1200 pixels
HDR support Yes, HDR10 No
Sync technology No No
Touchscreen No No
Coating Glossy Matte
Ambient light sensor No No
Display tests
Contrast 1000000:1 -
sRGB color space 100% -
DCI-P3 color gamut 100% -
Response time 1 ms -
Max. brightness

Battery

Capacity
Full charging time 1:50 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 65 W 90 W
Weight of AC adapter 221 grams 390 grams

CPU

CPU name
Base frequency 2.3 GHz 2 GHz
Turbo frequency 4.3 GHz 4.4 GHz
Cores 6 8 (4P + 4E)
Threads 12 12
L3 Cache 16 MB 12 MB
Integrated GPU AMD Radeon Vega 7 Intel UHD Graphics (48EU)
Fabrication process 7 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 50 W
Nvidia Optimus - MUX
Type Integrated Dedicated
Fabrication process 7 nm 8 nm
GPU base clock 300 MHz 1185 MHz
GPU boost clock 1800 MHz 1417 MHz
FLOPS 1.6 TFLOPS 5.8 TFLOPS
Memory size System Shared 4 GB
Memory type LPDDR4X GDDR6
Memory bus - 128 bit
Memory speed 4.27 Gbps 12 Gbps
Shading units (cores) 448 2048
Texture mapping units (TMUs) 28 64
Raster operations pipelines (ROPs) 8 40
GPU performance 1.6 TFLOPS 5.8 TFLOPS

GPU Benchmarks

Steel Nomad Lite Score
Blender GPU - 931
Solar Bay - 18048
Expected FPS based on average performance across 9 popular games. Details

RAM

RAM size
Channels 2x4 GB 1x8 GB
Clock 4266 MHz 3200 MHz
Type LPDDR4X DDR4
Upgradable No Yes
Total slots - 1
Max. ram size - 16 GB

Storage

Storage size
Bus PCI-E Gen 3.0 (4x) PCI-E Gen 4.0 (4x)
Storage type SSD (M2) SSD (M2)
Channels 1x256 GB 1x512 GB
Upgradable Yes Yes
Total slots 1 1
NVMe Yes Yes

Sound

Speakers 2.0 2.0
Dolby Atmos Yes No
Loudness ~81.7 dB ~70.7 dB
Microphones 2 2

Connectivity

Wi-Fi standard v6E v6E
Bluetooth v5.3 v5.3
Fingerprint Yes Optional
Infrared sensor No No
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1920 x 720 1280 x 720
Ports
USB-A 1x USB 3.2 2x USB 3.2
USB Type-C 2x USB 3.2 1x USB 3.2
Thunderbolt No Thunderbolt 4
HDMI 1x HDMI 2.1 1x HDMI 2.1
DisplayPort No No
VGA No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) No No
SD card reader Yes No
Proprietary charging port No Yes

Input

Keyboard
Keyboard type Island Island
Numpad No No
Backlight Yes Yes
Key travel 1.4 mm 1.4 mm
Touchpad
Size 13.0 x 7.4 cm 13.0 x 7.5 cm
Surface Plastic Plastic
Windows Precision Yes Yes
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.

Cast your vote

So, which laptop would you choose?
2 (50%)
2 (50%)
Total votes: 4

Comments

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