Compare ASUS Zephyrus Duo GX551 vs ROG Strix G18 vs ROG Zephyrus Duo GX650
Variants
4K
FHD
ScreenPad Plus
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
1x 3.5mm Combo Audio Jack + 1x HDMI 2.1 FRL + 1x 2.5G LAN port + 1x Thunderbolt™ 4 + 1x USB 3.2 Gen 2 Type-C + 2x USB 3.2 Gen 2 Type-A
1x 3.5mm Combo Audio Jack + 1x HDMI 2.1 FRL + 2x USB 3.2 Gen 2 Type-C + 2x USB 3.2 Gen 2 Type-A + 1x 2.5G RJ45
Wireless Connectivity
WiFi 6 + Bluetooth 5.1
Wi-Fi 6E(802.11ax) (Triple band) 2*2 + Bluetooth® 5.2
Wi-Fi 6E(802.11ax) (Triple band) 2*2 + Bluetooth® 5.2
Construction
Battery | Capacity
90 Wh
90WHrs, 4S1P, 4-cell
90WHrs, 4S1P, 4-cell
Battery | Type
Lithium-ion polymer battery
Lithium-ion polymer battery
Camera
720P HD camera
FHD 1080P@30FPS
Camera | Front
Optional camera
Material
Aluminum
Aluminum (A), plastic (B/C/D)
Microphone
Built-in array microphone
Dual-array microphone
3-microphone array
Speakers
2x 4W speaker with smart AMP technology
2-speaker system
6-speaker(dual-force woofer) system
Dimensions
Bezels
85% screen-to-body ratio
Size | Depth
268 mm / 10.55 inch
294 mm / 11.57"
266 mm / 10.47"
Size | Height
20.9 mm / 0.82 inch
23.1-30.8 mm / 0.91 - 1.21 inch
20.5-29.7 mm / 0.81-1.17 inch
Size | Width
360 mm / 14.17 inch
399 mm / 15.71"
355 mm / 13.98"
Weight
2.48 kg / 5.47 lbs
3.0 Kg / 6.61 lbs
2.67 kg / 5.89 lbs
Display
Aspect Ratio
16:9
16:10
16:10
Brightness
300 nits
Contrast Ratio
1000:1
Display Backlight
Mini LED
Display Diagonal
15.6 inch
18 inch
16 inch
Display Type
IPS, matte
IPS
IPS
Gamut
100% DCI-P3
100% DCI-P3
Refresh Rate
240 Hz
240 Hz
Resolution
FHD (1920x1080) or 4K UHD (3840x2160)
QHD+ (2560 x 1600, WQXGA)
QHD+ (2560 x 1600, WQXGA)
Response Time
3 ms
3 ms
3 ms
Function
Audio
Dolby Atmos
Smart Amp Technology, Dolby Atmos
Smart Amp Technology, Dolby Atmos
Graphics
NVIDIA GeForce RTX 3060 6GB, RTX 3070 8GB, or RTX 3080 16GB
NVIDIA® GeForce RTX™ 3050 6GB / 4050 6GB / 4060 8GB / 4070 8GB / 4080 12GB
NVIDIA® GeForce RTX™ 4080 12GB / 4090 16GB
Keyboard Backlight
Per-key RGB lighting
Per-key RGB / 4-zone RGB
Per-key RGB
Operating System
Windows 10
Windows 11 Pro
Windows 11 Pro
Processor
AMD Ryzen 7 5800H or Ryzen 9 5900HX
13th Gen Intel® Core™ i9-13980HX
AMD Ryzen™ 9 7945HX
RGB Lighting
Aura Sync
Aura Sync Light Bar / logo
Touch Screen
ScreenPad Plus (14" 3840x1100 IPS)
Variable Framerate
FreeSync
Performance
Key Travel
1.9 mm
Memory | Capacity
16GB onboard + 1x SO-DIMM, up to 48GB combined
32GB SO-DIMM x 2, Max Capacity : 64GB
32GB SO-DIMM x 2, Max Capacity : 64GB
Memory | Type
DDR4 3200MHz
DDR5-4800 dual channel
DDR5-4800 dual channel
Power Supply
280 W
ø6.0, 280W AC Adapter
ø6.0, 330W AC Adapter
Storage
Up to 2x 1TB M.2 NVMe PCIe 3.0 SSD
2TB PCIe® 4.0 NVMe
2TB PCIe® 4.0 NVMe™ M.2 Performance SSD
Production
Debut
2021-01-13 (CES 2021)
Reviews
Neofiliac score
83%
90%
Pros
- Stunning dual-screen design
- Excellent performance for a 15.6-inch gaming laptop
- Dual-monitor desktop setup
- 2TB SSD
- Good battery life
- Powerful components
- Good cooling
- Good port selection
- Good QHD+ Nebula display
- Advanced Optimus
- Very powerful components
- Useful secondary touch display for content creation
- Good port selection
- 6-speaker system
Cons
- Nothing in particular
- Mostly made of plastic
- Aggressive branding
- Extremely pricey
- Chassis not capable to use the components at 100%
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