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ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026) vs ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)

Asus ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026) vs Asus ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)

What ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026) does better (1) and where ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026) wins (5) — every spec side by side.

Asus · 2026ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026)

9.1Score

1 advantage

Asus ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)

Asus · 2026ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)

9.4Score

5 advantages≈ $7,100

Higher score

9.0Display9.8

8.0Memory & storage7.8

4.9Battery & portability4.4

9.7Features & cooling9.8

Dimensions

Size comparison

ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026)ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)

	ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026)	ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)	Difference
Depth	246 mm	247 mm	−1 mm
Width	355 mm	355 mm	=
Thickness	24.9 mm	25 mm	−0.1 mm
Weight	2.8 kg	2.8 kg	=

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

Why is ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026) better than ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)?

SSD (up to)4,096 GB vs 2,000 GB2×

Why is ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026) better than ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026)?

Brightness500 nits vs 1,100 nits2.2×
Video memory12 GB vs 24 GB2×
GPU shader cores5,888 vs 10,496+78%
RAM (base)16 GB vs 64 GB4×
SSD (base)1,024 GB vs 2,000 GB+95%

Specifications

Side by side

Only differences	Asus ROG Zephyrus Duo 16 GX651 RTX 5070 Ti (2026)9.1	Asus ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)≈ $7,1009.4
Graphics
Graphics card	GeForce RTX 5070 Ti Laptop	GeForce RTX 5090 Laptop
GPU maker	NVIDIA	NVIDIA
Video memory	12 GB	24 GB
Video memory type	GDDR7	GDDR7
GPU shader cores	5,888	10,496
GPU compute (FP32)	17 TFLOPS	—
3DMark Steel Nomad Light	13,901	—
Processor
Processor	Core Ultra 9 386H	Core Ultra 9 386H
CPU maker	Intel	Intel
CPU cores	16	—
CPU threads	16	—
Max CPU clock	4.9 GHz	—
Processor options	Core Ultra 9 386H	—
Geekbench 6 multi-core	17,133	—
Geekbench 6 single-core	2,952	—
Cinebench 2024 multi-core	1,283	—
Display
Screen size	16″	16″
Resolution	2880 × 1800	2880 × 1800
Resolution class	3K (1800p/2000p)	3K (1800p/2000p)
Refresh rate	120 Hz	—
Panel type	OLED	OLED
Brightness	500 nits	1,100 nits
sRGB coverage	100%	—
Response time	1 ms	—
DCI-P3 coverage	100%	—
Pixel density	212 ppi	—
Aspect ratio	16:10	16:10
G-Sync / FreeSync	Yes	—
Advanced Optimus	No	—
MUX switch	Yes	—
HDR	Yes	—
Touchscreen	Yes	Yes
Memory & storage
RAM (up to)	64 GB	64 GB
RAM (base)	16 GB	64 GB
RAM type	LPDDR5X	LPDDR5X
RAM speed	8,533 MHz	—
Upgradable RAM	No	—
SSD (up to)	4,096 GB	2,000 GB
SSD (base)	1,024 GB	2,000 GB
M.2 SSD slots	2	—
SSD interface	PCIe 5.0 x4	—
Battery & power
Battery capacity	90 Wh	90 Wh
Power adapter	250 W	250 W
USB-C charging (Power Delivery)	Yes	—
USB-C charging power	100 W	—
Design & cooling
Weight	2.82 kg	2.82 kg
Thickness	24.9 mm	25 mm
Width	355 mm	355 mm
Depth	246 mm	247 mm
Body material	Aluminium	—
Colours	Gray	Grey
Cooling fans	2	—
Vapor chamber cooling	Yes	—
Liquid metal (CPU)	No	—
Fan noise (max. load)	54.1 dB	—
Ports & wireless
Thunderbolt / USB4	Thunderbolt 4	Thunderbolt 4
Thunderbolt or USB4	Yes	Yes
USB-C ports	2	—
USB-A ports	2	—
HDMI	HDMI 2.1	HDMI 2.1
HDMI 2.1	Yes	Yes
(Mini) DisplayPort	No	—
Ethernet port	No	Yes
SD card reader	Yes	Yes
3.5 mm audio jack	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 7
Bluetooth	6	6
Keyboard & camera
Backlit keyboard	Yes	—
Numeric keypad	No	—
Key travel	1.7 mm	—
Webcam	1,080p	1,080p
IR camera (face login)	Yes	—
Fingerprint reader	No	—
Audio
Speakers	2.4	4 speakers
Dolby Atmos	Yes	Yes