In depth comparison and review of Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) and ASUS ROG Zephyrus Duo 15 (GX550LWS). 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.
| DESIGN AND DIMENSIONS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.8 cm x 24.5 cm x 1.715 cm | 36 cm x 26.8 cm x 2 cm |
| Weight | 1.8 kg | 2.48 kg |
| Case Material | Aluminum, polycarbonate ABS | - |
| Colour | Abyss blue | Gunmetal gray |
| DISPLAY | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| 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. | - | 300 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 300 cd/m² |
| Colour Gamut | 45% | 100% sRGB, 72% NTSC, 75.35% Adobe RGB |
| Features | Anti-glare | Anti-glare, 3 ms response rate, Pantone Validated, 72% NTSC colour gamut |
| PROCESSOR | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| CPU | Intel Core i3 (8th Gen) 8145U / 2.1 GHz | Intel Core i7 (10th Gen) 10875H / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 5.1 GHz |
| Number of Cores | Dual-Core | 8-core |
| Cache | 4 MB | 16 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | - | Intel HM470 |
| Features | Integrated memory controller | Hyper-Threading Technology, Intel Smart Cache, Intel Turbo Boost Max Technology 3.0 |
| MEMORY | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| 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 | 2933 MHz |
| Rated Speed | 2400 MHz | 3200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 0 | 0 |
| STORAGE | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) | 1 TB SSD M.2 PCIe - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | NVIDIA GeForce RTX 2070 SUPER / Intel UHD Graphics |
| Video Memory | - | 8 GB GDDR6 SDRAM |
| Video System Features | - | 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 (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| 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 |
| Features | Single stream (1x1) | - |
| BATTERY | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Technology | Lithium Ion | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 70 Wh | 90 Wh |
| Battery Life | Up to 15 hours | - |
| AC ADAPTER | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 240 Watt, 20 V, 12 A |
| INPUT | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Type | Keyboard, touchpad | Keyboard, NumberPad, ScreenPad Plus |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes (RGB) |
| Features | Multi-touch touchpad, buttonless touchpad | Chiclet keyboard, N-key rollover, per-key RGB, 14" 4K UHD (3840 x 1100) touch display |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Interfaces | USB 3.1 Gen 1 USB-C 3.1 Gen 1 HDMI Headphone/microphone combo jack USB 3.1 Gen 1 (Always On) |
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 output Microphone input |
|---|---|---|
| Memory Card Reader | 4 in 1 (MultiMediaCard, microSD, microSDHC, microSDXC) | - |
| SOFTWARE | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 10 Home |
|---|---|---|
| Software Included | Microsoft Office (30 days trial) | - |
| MISCELLANEOUS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | ASUS ROG Zephyrus Duo 15 (GX550LWS) |
|---|
| 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, 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 81NE | HF055T |
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