Compare ASUS Zephyrus Duo GX551 vs ASUS ZenBook 14 UX425 vs ZenBook Pro Duo 14 UX481
Variants
4K
FHD
ScreenPad Plus
Secondary Display
Connectivity
Ports
3x UBS 3.2 Gen2 + 1x USB-C 3.2 Gen2 / DP + 1x HDMI 2.0b + 1x Audio combo + 1x RJ45 + 1x microSD
2x Thunderbolt 3 + 1x USB 3.2 Gen1 + 1x HDMI 2.0 + 1x microSD reader
1x USB 3.1 Gen1 + 1x USB 3.1 Gen2 + 1x USB-C 3.1 Gen2 + 1x HDMI 1.4 + 1x Audio combo + 1x MicroSD
Wireless Connectivity
WiFi 6 + Bluetooth 5.1
WiFi 6 + Bluetooth 5.0
WiFi 6 + Bluetooth 5.0
Construction
Battery | Capacity
90 Wh
67 Wh
4-Cell 70Wh
Camera | Front
Optional camera
HD infrared (IR) webcam
HD camera with IR function to support Windows Hello
Colors
Pine Grey, Lilac Mist
Celestial Blue
Form Factor
Dual screen clamshell laptop
Material
Aluminum
Microphone
Built-in array microphone
Built-in array microphone
Speakers
2x 4W speaker with smart AMP technology
Dimensions
Bezels
85% screen-to-body ratio
2.5mm bezel & 90% screen-to-body ratio
90%
Size | Depth
268 mm / 10.55 inch
208 mm / 8.19 inch
223 mm / 8.78 inch
Size | Height
20.9 mm / 0.82 inch
13.9 mm / 0.55 inch
19.9 mm / 0.78 inch
Size | Width
360 mm / 14.17 inch
319 mm / 12.56 inch
323 mm / 12.72 inch
Weight
2.48 kg / 5.47 lbs
1.13 kg / 2.49 lbs
1.5 kg / 3.31 lbs
Display
Aspect Ratio
16:9
16:9
16:9
Brightness
300 or 400 nits
300 nits
Display Diagonal
15.6 inch
14 inch
14"
Display Type
IPS, matte
IPS
IPS
Gamut
100% sRGB
100% sRGB
Resolution
FHD (1920x1080) or 4K UHD (3840x2160)
FHD (1920x1080)
FHD (1920x1080)
Response Time
3 ms
Function
Audio
Dolby Atmos
Smart Amp Technology
Graphics
NVIDIA GeForce RTX 3060 6GB, RTX 3070 8GB, or RTX 3080 16GB
Intel UHD Graphics or Intel Iris Plus Graphics
NVIDIA GeForce MX250
Keyboard Backlight
Per-key RGB lighting
Yes
Operating System
Windows 10
Windows 10
Processor
AMD Ryzen 7 5800H or Ryzen 9 5900HX
Intel Core i3-1005G1, i5-1035G1, or i7-1065G7
9th-gen Intel Core i5-10210U, i7-10510U, or i7-10710U
RGB Lighting
Aura Sync
Touch Screen
Optional on the main display, standard on the ScreenPad Plus
Touchpad
ASUS NumberPad 2.0 ScreenPad
12.6" FHD ScreenPad Plus
Variable Framerate
FreeSync
Performance
Battery Life
Up to 22 h
Durability
MIL-STD 810G military-grade standard
MIL-STD 810G
Key Travel
1.9 mm
1.4 mm
1.4 mm
Memory | Capacity
16GB onboard + 1x SO-DIMM, up to 48GB combined
Up to 32 GB
8 or 16GB soldered
Memory | Type
DDR4 3200MHz
LPDDR4x 3733MHz
LPDDR3 2133MHz
Power Supply
280 W
65 W
65 W
Storage
Up to 2x 1TB M.2 NVMe PCIe 3.0 SSD
Up to 1TB PCIe 3.0 x4 NVMe SSD + 32GB Intel Optane memory
Up to 1TB PCIe Gen3 SSD
Production
Debut
2021-01-13 (CES 2021)
2020-07-28
2019
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