Compare models
Spec
MSI Stealth 18 HX AI (2026)
MSI Stealth GS66 (2022)
ASUS ROG Zephyrus Duo 16 GX651
ASUS ROG Zephyrus Duo 16 (2023)
Summary
LB Score
90
76
75
90
Value
74
62
40
89
★
Price
$1,440
$737
★
$1,800
$922
Use class
Premium Gaming
Mid Gaming
Premium Gaming
Premium Gaming
Screen
Diagonal
18
15.6
16
16
Resolution
1920x1200
1920x1080
2880x1800
2560x1600
Panel type
ips
ips
oled
mini
Brightness
—
—
—
—
Screen quality
51
50
66
★
60
Processor & graphics
CPU score
100
★
60
65
97
GPU type
dGPU
dGPU
dGPU
dGPU
GPU score
88
83
88
84
GPU rating
—
36%
—
40%
★
Memory
RAM (max)
128 GB
★
64 GB
64 GB
64 GB
RAM type
DDR5
DDR5
LPDDR5X
DDR5
Storage
Storage (bus)
PCI-E Gen 4.0 (4x)
PCI-E Gen 4.0 (4x)
PCI-E Gen 5.0 (4x)
PCI-E Gen 4.0 (4x)
Battery
Capacity (Wh)
99.9 Wh
99.9 Wh
90.0 Wh
90.0 Wh
Autonomy (est.)
3.1 h
3.5 h
★
3.1 h
3.1 h
Chassis
Weight
2.89 kg
2.10 kg
★
2.82 kg
2.67 kg
Type
Gaming
Gaming
Gaming
Gaming
Release year
2025
2022
2026
★
2023
Verdict
Best overall: MSI Stealth 18 HX AI (2026) · wins 8 of 20 parameter rows
Why MSI Stealth 18 HX AI (2026) over MSI Stealth GS66 (2022)
- RAM (max): 128 GB vs 64 GB (+64)
- CPU score: 100 vs 60 (+40.5)
- Reliability: 85 vs 54 (+31)