Lenovo ThinkBook 15-IIL (20SM) vs. ASUS Vivobook 14X (K3405ZF)

Laptop Comparison, Reviews and Tests
Lenovo ThinkBook 15-IIL (20SM)
Lenovo ThinkBook 15-IIL (20SM)

Our Rating: 75 %

In depth comparison and review of Lenovo ThinkBook 15-IIL (20SM) and ASUS Vivobook 14X (K3405ZF). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.

Lenovo ThinkBook 15-IIL (20SM) Review

Advantages and disadvantages of Lenovo ThinkBook 15-IIL (20SM) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price point

solid build quality

decent battery life

good processor performance

adequate storage options

average display quality

limited graphics capability

no thunderbolt support

heavier design

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 ThinkBook 15-IIL (20SM) and ASUS Vivobook 14X (K3405ZF)
78 % - Design
72 % - Display
72 % - Performance
78 % - Connectivity
74 % - Battery
82 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
80 % - Battery

Laptop Specifications Comparison

Lenovo ThinkBook 15-IIL (20SM) vs. ASUS Vivobook 14X (K3405ZF) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 36.4 cm x 24.5 cm x 1.89 cm 31.71 cm x 22.25 cm x 1.89 cm
Weight 1.8 kg 1.4 kg
Case Material Aluminum, polycarbonate ABS Aluminum
Colour Mineral grey Cool silver
DISPLAY Lenovo ThinkBook 15-IIL (20SM) 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 250 cd/m² 300 cd/m²
Colour Gamut - 45% NTSC
Features Anti-glare Glossy
PROCESSOR Lenovo ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
CPU Intel Core i5 (10th Gen) 1035G1 / 1 GHz Intel Core i5 (12th Gen) 12450H / 2 GHz
Max Turbo Speed 3.6 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 ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
RAM 8 GB (1 x 8 GB) 16 GB (1 x 8 GB + 8 GB (soldered))
Max RAM Supported 16 GB 16 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2666 MHz -
Rated Speed 2666 MHz -
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 1 1
Empty Slots 0 0
STORAGE Lenovo ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkBook 15-IIL (20SM) 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
Camera Features ThinkShutter camera privacy Privacy shutter
Sound Stereo speakers, dual array microphone Dual speakers, microphone
Codec Realtek ALC3287 -
Compliant Standards High Definition Audio, Dolby Audio -
Audio Features - Output: ASUS SonicMaster, Audio by Dirac, Asus Audio Booster
COMMUNICATIONS Lenovo ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Wireless Bluetooth 5.0, 802.11a/b/g/n/ac/ax 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3
Wireless Controller M.2 Card -
Network Interface Gigabit Ethernet -
Features Dual stream (2x2) Single stream (1x1)
BATTERY Lenovo ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Technology Lithium Ion 3-cell Lithium Ion
Battery Capacity (Size) 45 Wh 50 Wh
Battery Life Up to 9 hours -
AC ADAPTER Lenovo ThinkBook 15-IIL (20SM) 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 ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight Yes Yes
Features Spill-resistant, multi-touch touchpad, buttonless touchpad 1.4mm travel distance, ASUS ErgoSense
CONNECTIONS & EXPANSIONS Lenovo ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Interfaces USB 2.0
USB 3.1 Gen 1 (Always On)
USB 3.1 Gen 1
USB-C 3.1 Gen 1
USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery)
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 ThinkBook 15-IIL (20SM) ASUS Vivobook 14X (K3405ZF)
Operating System (OS) Windows 10 Pro 64-bit Edition - French Windows 11 Home
Software Included Microsoft Office (30 days trial) MyASUS, ScreenXpert, GlideX
MISCELLANEOUS Lenovo ThinkBook 15-IIL (20SM) 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
Security Slot Type Kensington security slot -
Theft/Intrusion Protection Security lock slot (cable lock sold separately) -
Features Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested ASUS IceCool design, MIL-STD-810H tested
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 RoHS, REACH
Manufacturer Warranty Limited warranty - 1 year - pick-up and return -
Model Number - LY134W
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