Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) vs. ASUS ROG Zephyrus Duo 15 (GX550LXS)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) and ASUS ROG Zephyrus Duo 15 (GX550LXS). 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 IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) Review

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

slim aluminum design

full hd display

solid keyboard feel

decent battery life

quiet cooling system

average color accuracy

no thunderbolt support

limited upgrade options

mediocre webcam quality

ASUS ROG Zephyrus Duo 15 (GX550LXS) Review

Advantages and disadvantages of ASUS ROG Zephyrus Duo 15 (GX550LXS) based on its technical characteristics, features, user experience, expert reviews and price level.

innovative dual-screen design

powerful gaming performance

high-quality build materials

excellent cooling system

vivid 4k display

high price point

short battery life

heavy and bulky

limited port selection

Laptop Comparison and Tests

Difference between Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) and ASUS ROG Zephyrus Duo 15 (GX550LXS)
83 % - Design
75 % - Display
72 % - Performance
75 % - Connectivity
75 % - Battery
82 % - Design
85 % - Display
90 % - Performance
85 % - Connectivity
65 % - Battery

Laptop Specifications Comparison

Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) vs. ASUS ROG Zephyrus Duo 15 (GX550LXS) Comparison Chart
DESIGN AND DIMENSIONS Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.8 cm x 24.5 cm x 1.91 cm 36 cm x 26.8 cm x 2 cm
Weight 1.8 kg 2.48 kg
Case Material Aluminum -
Colour Mineral grey Gunmetal gray
DISPLAY Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Screen Size (Type) 15.6" - IPS 15.6"
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 3840 x 2160 (Ultra HD 4K)
V-Sync Rate at Max Res. - 60 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 300 cd/m² 400 cd/m²
Colour Gamut 72% 100% Adobe RGB, 132.7% sRGB, 95.54% NTSC
Features Anti-glare Anti-glare, NVIDIA G-SYNC compatible, Pantone Validated
PROCESSOR Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
CPU Intel Core i5 (8th Gen) 8265U / 1.6 GHz Intel Core i9 (10th Gen) 10980HK / 2.4 GHz
Max Turbo Speed 3.9 GHz 5.3 GHz
Number of Cores Quad-Core 8-core
Cache 6 MB 16 MB
64-bit Computing Yes Yes
Chipset - Intel HM470
Features Integrated memory controller Intel Turbo Boost Max Technology 3.0
MEMORY Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
RAM 8 GB (1 x 4 GB + 4 GB (soldered)) 32 GB (1 x 16 GB + 16 GB (soldered))
Max RAM Supported 12 GB 48 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2400 MHz 3200 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 S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Total Capacity - 2 TB
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) 2 x 1 TB SSD M.2 PCIe - NVM Express (NVMe), HyperDrive RAID 0
RAID Level - RAID 0
AUDIO & VIDEO Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Multi-GPU Configuration 1 single GPU card / integrated GPU 1 single GPU card / integrated GPU
Graphics Processor (GPU) NVIDIA GeForce GTX 1650 / Intel UHD Graphics 620 NVIDIA GeForce RTX 2080 SUPER / Intel UHD Graphics
Video Memory 4 GB GDDR5 SDRAM 8 GB GDDR6 SDRAM
Video System Features Max-Q design NVIDIA Optimus, Max-Q design
Gaming - Yes
Camera Yes - 720p -
Resolution 1 Megapixel -
Camera Features Privacy shutter -
Sound Stereo speakers, dual array microphone Stereo speakers, array microphone
Compliant Standards High Definition Audio, Dolby Audio -
Audio Features - ESS SABRE HiFi audio DAC technology, Smart Amp
VR Ready - Yes
COMMUNICATIONS Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 802.11a/b/g/n/ac/ax, Bluetooth 5.1
Wireless Controller M.2 Card -
Network Interface - Gigabit Ethernet
Compliant Standards - Wi-Fi CERTIFIED 6
Features Dual stream (2x2) Dual stream (2x2)
BATTERY Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Technology Lithium Ion 4-cell Lithium Ion
Battery Capacity (Size) 52.5 Wh 90 Wh
Battery Life Up to 12 hours -
AC ADAPTER Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Input AC 120/230 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 90 Watt 240 Watt, 20 V, 12 A
INPUT Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Type Keyboard, touchpad Keyboard, touchpad, NumberPad
Numeric Keypad Yes -
Keyboard Backlight Yes Yes (RGB)
Features Multi-touch touchpad, buttonless touchpad Chiclet keyboard, per-key RGB
CONNECTIONS & EXPANSIONS Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Interfaces USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 1
HDMI
Headphone/microphone combo jack
USB-C 3.2 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery)
USB 3.2 Gen 2
2 x USB 3.2 Gen 1
HDMI
LAN
Headphone/microphone combo jack
Microphone input
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) -
SOFTWARE Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 10 Pro
Software Included Microsoft Office (30 days trial) -
MISCELLANEOUS Lenovo IdeaPad S540-15IWL GTX (Lenovo IdeaPad S540) ASUS ROG Zephyrus Duo 15 (GX550LXS)
Included Accessories Power adapter Power adapter
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader -
Features Administrator password, hard drive password, power-on password, RapidCharge System password, ASUS Aura Sync technology, Active Aerodynamic System (AAS), 65W power delivery
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 -
SAR Value - 0.028 W/kg (body), 0.028 W/kg (limb)
ENERGY STAR Certified Yes -
Manufacturer Warranty Limited warranty - 1 year - pick-up and return -
Model Number 15IWL GTX 81SW HC029R
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