In depth comparison and review of ASUS ROG Zephyrus Duo 15 (GX550LWS) and LG gram 14Z90R. 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.
Advantages and disadvantages of ASUS ROG Zephyrus Duo 15 (GX550LWS) based on its technical characteristics, features, user experience, expert reviews and price level.
innovative dual-screen design
powerful gaming performance
high-refresh-rate display
premium build quality
effective cooling system
high price point
short battery life
heavy and bulky
limited port selection
Advantages and disadvantages of LG gram 14Z90R based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-lightweight design
long-lasting battery
high-resolution display
robust processing power
fast ssd storage
higher price range
limited gaming performance
no dedicated gpu
fewer ports available
| DESIGN AND DIMENSIONS | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36 cm x 26.8 cm x 2 cm | 21.1 cm x 21.39 cm x 1.68 cm |
| Weight | 2.48 kg | 999 g |
| Case Material | - | Polycarbonate ABS, magnesium alloy |
| Colour | Gunmetal gray | Obsidian black |
| DISPLAY | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Screen Size (Type) | 15.6" | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 3840 x 2160 (Ultra HD 4K) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | 300 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 350 cd/m² |
| Colour Gamut | 100% sRGB, 72% NTSC, 75.35% Adobe RGB | 99% DCI-P3, 95% DCI-P3 |
| Features | Anti-glare, 3 ms response rate, Pantone Validated, 72% NTSC colour gamut | Anti-glare, 60 Hz refresh rate |
| PROCESSOR | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| CPU | Intel Core i7 (10th Gen) 10875H / 2.3 GHz | Intel Core i7 (13th Gen) 1360P / 2.2 GHz |
|---|---|---|
| Max Turbo Speed | 5.1 GHz | 5 GHz |
| Number of Cores | 8-core | 12-core |
| Cache | 16 MB | 18 MB |
| 64-bit Computing | Yes | - |
| Chipset | Intel HM470 | - |
| Platform Technology | - | Intel Evo |
| Features | Hyper-Threading Technology, Intel Smart Cache, Intel Turbo Boost Max Technology 3.0 | - |
| MEMORY | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| RAM | 32 GB (1 x 16 GB + 16 GB (soldered)) | 16 GB |
|---|---|---|
| Max RAM Supported | 48 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2933 MHz | 6000 MHz |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Main Storage Size (HDD/SSD) | 1 TB SSD M.2 PCIe - NVM Express (NVMe) | 1 TB SSD M.2 2280 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 2070 SUPER / Intel UHD Graphics | Intel Iris Xe Graphics |
| Video Memory | 8 GB GDDR6 SDRAM | - |
| Video System Features | NVIDIA Optimus, Max-Q design | Functions as Intel UHD graphics (for single-channel memory) |
| Gaming | Yes | - |
| Camera | - | Yes - Full HD |
| Camera Features | - | Face recognition, IR camera |
| Sound | Stereo speakers, array microphone | Stereo speakers, two microphones |
| Compliant Standards | - | Dolby Atmos |
| Audio Features | ESS SABRE HiFi audio DAC technology, Smart Amp | Output: Smart Amp |
| VR Ready | Yes | - |
| COMMUNICATIONS | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| Features | - | Dual stream (2x2) |
| BATTERY | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Technology | 4-cell Lithium Ion | - |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 80 Wh |
| Battery Life | - | Up to 28.5 hours |
| AC ADAPTER | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Input | AC 120/230 V (50/60 Hz) | - |
|---|---|---|
| Output | 240 Watt, 20 V, 12 A | 65 Watt |
| INPUT | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Type | Keyboard, NumberPad, ScreenPad Plus | Touchpad, 101 keys keyboard |
|---|---|---|
| Keyboard Backlight | Yes (RGB) | Yes |
| Features | Chiclet keyboard, N-key rollover, per-key RGB, 14" 4K UHD (3840 x 1100) touch display | Precision touchpad |
| CONNECTIONS & EXPANSIONS | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Slots | - | 2 x SSD (1 free) |
|---|---|---|
| Interfaces | 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 |
Headphone/microphone combo jack (mini-phone 3.5 mm) 2 x USB 3.2 Gen 2x1 (supports DisplayPort) 2 x USB4 Gen 3x2 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI |
| Memory Card Reader | - | Yes (microSD) |
| SOFTWARE | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Operating System (OS) | Windows 10 Home | Windows 11 Home |
|---|---|---|
| Software Included | - | Microsoft 365 (30 days trial), McAfee LiveSafe (30 days trial), LG On Screen Display 3, Alexa, Intel Connectivity Performance Suite, PCmover Professional, LG PC Manuals, LG Update & Recovery, LG Glance by Mirametrix, New Wallpaper, Intel Unison, Dolby Atmos sound, LG Lively Theme, LG Display Extension, LG Security Guard, Sync on Mobile, LG Smart Assistant 2.0 |
| MISCELLANEOUS | ASUS ROG Zephyrus Duo 15 (GX550LWS) | LG gram 14Z90R |
|---|
| Included Accessories | Power adapter | 65W USB-C power adapter |
|---|---|---|
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | System password, 65W power delivery | LED indicator |
| Compliant Standards | - | MIL-STD 810H |
| SAR Value | 0.028 W/kg (body), 0.028 W/kg (limb) | - |
| Manufacturer Warranty | - | Limited warranty - parts and labour - 1 year |
| Model Number | HF055T | K.AA78A1 |
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