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ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026) vs Katana 15 HX B14 RTX 5070 (2025)

Asus ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026) vs MSI Katana 15 HX B14 RTX 5070 (2025)

What ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026) does better (13) and where Katana 15 HX B14 RTX 5070 (2025) wins (3) — every spec side by side.

Asus · 2026ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026)

8.9Score

13 advantages≈ $5,300

Higher score

MSI · 2025Katana 15 HX B14 RTX 5070 (2025)

7.3Score

3 advantages≈ $1,450

9.8Display8.1

5.4Memory & storage9.2

4.4Battery & portability4.8

9.8Features & cooling2.3

Dimensions

Size comparison

ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026)Katana 15 HX B14 RTX 5070 (2025)

	ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026)	Katana 15 HX B14 RTX 5070 (2025)	Difference
Depth	247 mm	262 mm	−15 mm
Width	355 mm	359 mm	−4 mm
Thickness	25 mm	26 mm	−1 mm
Weight	2.8 kg	2.4 kg	+0.4 kg

Drawn to the same scale from the official dimensions (front and side).

Why is ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026) better than Katana 15 HX B14 RTX 5070 (2025)?

Resolution class3K (1800p/2000p) vs QHD (1440p/1600p)
Panel typeOLED vs IPS
Thunderbolt or USB4Yes · Katana 15 HX B14 RTX 5070 (2025): No
Battery capacity90 Wh vs 75 Wh+20%
Video memory12 GB vs 8 GB+50%
SSD (base)2,000 GB vs 512 GB3.9×
GPU shader cores5,888 vs 4,608+28%
RAM (base)32 GB vs 16 GB2×
Wi-Fi standardWi-Fi 7 vs Wi-Fi 6+17%
Thickness25 mm vs 26 mm+4%
Webcam1,080p vs 720p+50%
Bluetooth6 vs 5.3+13%

Why is Katana 15 HX B14 RTX 5070 (2025) better than ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026)?

RAM (up to)32 GB vs 64 GB2×
SSD (up to)2,000 GB vs 4,000 GB2×
Weight2.82 kg vs 2.4 kg+18%

Specifications

Side by side

Only differences	Asus ROG Zephyrus Duo 16 OLED GX651AX RTX 5070 Ti (2026)≈ $5,3008.9	MSI Katana 15 HX B14 RTX 5070 (2025)≈ $1,4507.3
Graphics
Graphics card	GeForce RTX 5070 Ti Laptop	GeForce RTX 5070 Laptop
GPU maker	NVIDIA	NVIDIA
Video memory	12 GB	8 GB
Video memory type	GDDR7	GDDR7
GPU shader cores	5,888	4,608
Processor
Processor	Core Ultra 9 386H	Core i7-14650HX
CPU maker	Intel	Intel
CPU cores	—	16
Max CPU clock	—	5.2 GHz
Display
Screen size	16″	15.6″
Resolution	2880 × 1800	2560 × 1440
Resolution class	3K (1800p/2000p)	QHD (1440p/1600p)
Refresh rate	—	165 Hz
Panel type	OLED	IPS
Brightness	1,100 nits	—
Aspect ratio	16:10	16:9
Touchscreen	Yes	—
Memory & storage
RAM (up to)	32 GB	64 GB
RAM (base)	32 GB	16 GB
RAM type	LPDDR5X	—
SSD (up to)	2,000 GB	4,000 GB
SSD (base)	2,000 GB	512 GB
Battery & power
Battery capacity	90 Wh	75 Wh
Power adapter	250 W	240 W
USB-C charging (Power Delivery)	—	Yes
Design & cooling
Weight	2.82 kg	2.4 kg
Thickness	25 mm	26 mm
Width	355 mm	359 mm
Depth	247 mm	262 mm
Colours	Grey	Black
Ports & wireless
Thunderbolt / USB4	Thunderbolt 4	—
Thunderbolt or USB4	Yes	No
HDMI	HDMI 2.1	HDMI 2.1
HDMI 2.1	Yes	Yes
Ethernet	—	1 Gbit/s
Ethernet port	Yes	Yes
SD card reader	Yes	—
3.5 mm audio jack	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 6
Bluetooth	6	5.3
Keyboard & camera
Webcam	1,080p	720p
Audio
Speakers	4 speakers	2 speakers
Dolby Atmos	Yes	—