In depth comparison and review of ASUS ROG Zephyrus Duo 15 SE (GX551QS) and ASUS X515EA (BQ945T). 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 SE (GX551QS) based on its technical characteristics, features, user experience, expert reviews and price level.
innovative dual-screen design
powerful gaming performance
high-quality build
excellent cooling system
vivid display resolution
high price point
short battery life
heavy and bulky
limited port selection
Advantages and disadvantages of ASUS X515EA (BQ945T) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
solid build quality
efficient multitasking
adequate connectivity options
average battery life
modest display resolution
no backlit keyboard
limited graphics performance
| DESIGN AND DIMENSIONS | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36 cm x 26.8 cm x 2.09 cm | 36 cm x 23.5 cm x 1.99 cm |
| Weight | 2.48 kg | 1.8 kg |
| Case Material | - | Plastic |
| Colour | - | Transparent silver (LCD cover), transparent silver (top), slate grey (bottom) |
| DISPLAY | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 3840 x 2160 (Ultra HD 4K) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 120 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | - | 250 cd/m² |
| Colour Gamut | 100% Adobe RGB, 132.7% sRGB | 45% NTSC |
| Features | Anti-glare, FreeSync Technology, 3 ms response rate, Pantone Validated, IPS-level | Anti-glare, IPS-level |
| PROCESSOR | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| CPU | AMD Ryzen 9 5980HX / 3.3 GHz | Intel Core i3 (11th Gen) 1115G4 / 3 GHz |
|---|---|---|
| Max Turbo Speed | 4.8 GHz | 4.1 GHz |
| Number of Cores | 8-core | Dual-Core |
| Cache | L3 - 16 MB | 6 MB |
| Features | - | Intel Turbo Boost Technology 2.0, Intel Smart Cache, Intel Speed Shift Technology |
| MEMORY | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| RAM | 32 GB (1 x 16 GB + 16 GB (soldered)) | 4 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 48 GB | - |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 1 |
| STORAGE | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 3080 | Intel UHD Graphics |
|---|---|---|
| Video Memory | 16 GB GDDR6 SDRAM | - |
| Video System Features | ROG Boost, Dynamic Boost | - |
| Gaming | Yes | - |
| Camera | - | Yes - VGA |
| Sound | Stereo speakers, two tweeters, array microphone | Stereo speakers, microphone |
| Compliant Standards | Dolby Atmos | - |
| Audio Features | Smart Amp | ASUS SonicMaster |
| COMMUNICATIONS | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| Features | Dual stream (2x2) | Single stream (1x1) |
| BATTERY | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Technology | 4-cell Lithium Ion | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 37 Wh |
| AC ADAPTER | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 240 Watt, 20 V, 12 A | 45 Watt, 19 V, 2.37 A |
| INPUT | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Type | Keyboard, NumberPad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes (RGB) | Yes |
| Features | Chiclet keyboard, per-key RGB | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Interfaces | Headphone/microphone combo jack USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) 3 x USB 3.2 Gen 2 HDMI LAN |
Headphone/microphone combo jack HDMI USB 3.2 Gen 1 USB-C 3.2 Gen 1 2 x USB 2.0 |
|---|---|---|
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Operating System (OS) | Windows 10 Pro | Windows 10 Home in S mode |
|---|
| MISCELLANEOUS | ASUS ROG Zephyrus Duo 15 SE (GX551QS) | ASUS X515EA (BQ945T) |
|---|
| Included Accessories | Power adapter, palm rest, ROG X DL2 thank you card | Power adapter |
|---|---|---|
| Security | - | Firmware Trusted Platform Module (TPM) Security Chip |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | System password, ASUS Aura Sync technology | - |
| Repairability Index | - | 6.5 (out of 10) |
| ENERGY STAR Certified | - | Yes |
| Model Number | HB185R | - |
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