Lenovo IdeaPad S540-15IML (81NG) vs. ASUS Vivobook 14X (K3405ZF)

Laptop Comparison, Reviews and Tests

Detailed comparison and review of Lenovo IdeaPad S540-15IML (81NG) and ASUS Vivobook 14X (K3405ZF). With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.

Lenovo IdeaPad S540-15IML (81NG) Review

Advantages and disadvantages of Lenovo IdeaPad S540-15IML (81NG) based on its technical characteristics, features, user experience, expert reviews and price level.

sleek aluminum design

sharp full HD display

fast processing speeds

ample storage capacity

good battery life

heavier than competitors

no optical drive

limited port selection

average graphics performance

ASUS Vivobook 14X (K3405ZF) Review

Advantages and disadvantages of ASUS Vivobook 14X (K3405ZF) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful intel processor

lightweight and portable

vivid oled display

fast ssd storage

competitive price point

average battery life

limited port selection

no dedicated gpu

standard design

Laptop Comparison and Tests

Difference between Lenovo IdeaPad S540-15IML (81NG) and ASUS Vivobook 14X (K3405ZF)
82 % - Design
72 % - Display
75 % - Performance
75 % - Connectivity
75 % - Battery
82 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
80 % - Battery

Laptop Specifications Comparison

Lenovo IdeaPad S540-15IML (81NG) vs. ASUS Vivobook 14X (K3405ZF) Comparison Chart
DESIGN AND DIMENSIONS Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 35.8 cm x 24.5 cm x 1.69 cm 31.71 cm x 22.25 cm x 1.89 cm
Weight 1.95 kg 1.4 kg
Case Material Aluminum, glass Aluminum
Colour Mineral grey Cool silver
DISPLAY Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Screen Size (Type) 15.6" - IPS 14" - IPS
LCD Backlight Technology LED backlight -
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1200 (WUXGA)
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness 300 cd/m² 300 cd/m²
Colour Gamut 72% 45% NTSC
Features Glossy, glass cover Glossy
PROCESSOR Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
CPU Intel Core i5 (10th Gen) 10210U / 1.6 GHz Intel Core i5 (12th Gen) 12450H / 2 GHz
Max Turbo Speed 4.2 GHz 4.4 GHz
Number of Cores Quad-Core 8-core
Cache 6 MB L3 - 12 MB
64-bit Computing Yes -
Features Integrated memory controller Intel Smart Cache
MEMORY Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
RAM 8 GB (1 x 4 GB + 4 GB (soldered)) 16 GB (1 x 8 GB + 8 GB (soldered))
Max RAM Supported 12 GB 16 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2400 MHz -
Rated Speed 2400 MHz -
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 1 1
Empty Slots 0 0
STORAGE Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) Intel UHD Graphics NVIDIA GeForce RTX 2050 / Intel UHD Graphics
Video Memory - 4 GB GDDR6 SDRAM
Camera Yes - 720p Yes - HD
Resolution 1 Megapixel -
Camera Features Privacy shutter Privacy shutter
Sound Stereo speakers, dual array microphone Dual speakers, microphone
Compliant Standards High Definition Audio, Dolby Audio -
Audio Features - Output: ASUS SonicMaster, Audio by Dirac, Asus Audio Booster
COMMUNICATIONS Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3
Wireless Controller M.2 Card -
Features Dual stream (2x2) Single stream (1x1)
BATTERY Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Technology Lithium Ion 3-cell Lithium Ion
Battery Capacity (Size) 70 Wh 50 Wh
Battery Life Up to 15 hours -
AC ADAPTER Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 90 Watt, 19 V, 4.74 A
INPUT Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight Yes Yes
Features Multi-touch touchpad, buttonless touchpad 1.4mm travel distance, ASUS ErgoSense
CONNECTIONS & EXPANSIONS Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Interfaces USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 1
HDMI
Headphone/microphone combo jack
HDMI 2.1
Headphone/microphone combo jack
2 x USB 3.2 Gen 1
USB-C 3.2 Gen 1 (Power Delivery)
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) -
SOFTWARE Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 11 Home
Software Included Microsoft Office (30 days trial) MyASUS, ScreenXpert, GlideX
MISCELLANEOUS Lenovo IdeaPad S540-15IML (81NG) ASUS Vivobook 14X (K3405ZF)
Included Accessories Power adapter Power adapter, wired mouse, Carry bag
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Firmware Trusted Platform Module (TPM) Security Chip
Features Administrator password, hard drive password, power-on password, RapidCharge ASUS IceCool design, MIL-STD-810H tested
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 RoHS, REACH
SAR Value 1.81 W/kg (body), 1.81 W/kg (limb) -
Manufacturer Warranty Limited warranty - 1 year - pick-up and return -
Model Number - LY134W
Other Comparisons with Lenovo IdeaPad S540-15IML (81NG)
Other Comparisons with ASUS Vivobook 14X (K3405ZF)
Other Popular Laptop Comparisons
Other projects: