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ROG Strix Scar 18 G835 RTX 5080 (2025) vs ROG Strix Scar 18 G835 RTX 5090 (2025)

Asus ROG Strix Scar 18 G835 RTX 5080 (2025) vs Asus ROG Strix Scar 18 G835 RTX 5090 (2025)

What ROG Strix Scar 18 G835 RTX 5080 (2025) does better (2) and where ROG Strix Scar 18 G835 RTX 5090 (2025) wins (8) — every spec side by side.

Asus · 2025ROG Strix Scar 18 G835 RTX 5080 (2025)

7.6Score

2 advantages≈ $5,500

Asus ROG Strix Scar 18 G835 RTX 5090 (2025)

Asus · 2025ROG Strix Scar 18 G835 RTX 5090 (2025)

9.0Score

8 advantages≈ $5,200

Higher score

7.6Graphics8.9

8.2Overall performance9.0

8.5Display9.8

4.2Memory & storage4.5

2.7Battery & portability2.7

7.7Features & cooling7.7

Dimensions

Size comparison

ROG Strix Scar 18 G835 RTX 5080 (2025)ROG Strix Scar 18 G835 RTX 5090 (2025)

	ROG Strix Scar 18 G835 RTX 5080 (2025)	ROG Strix Scar 18 G835 RTX 5090 (2025)	Difference
Depth	298 mm	298 mm	=
Width	399 mm	399 mm	=
Thickness	32 mm	32 mm	=
Weight	3.3 kg	3.3 kg	=

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

Why is ROG Strix Scar 18 G835 RTX 5080 (2025) better than ROG Strix Scar 18 G835 RTX 5090 (2025)?

RAM (base)64 GB vs 32 GB2×
SSD (base)2,000 GB vs 1,000 GB2×

Why is ROG Strix Scar 18 G835 RTX 5090 (2025) better than ROG Strix Scar 18 G835 RTX 5080 (2025)?

Resolution classQHD (1440p/1600p) vs 4K (2160p/2400p)
Panel typeIPS vs Mini-LED
SSD (up to)2,000 GB vs 4,000 GB2×
Refresh rate240 Hz vs 300 Hz+25%
GPU compute (FP32)42 TFLOPS vs 51.4 TFLOPS+22%
Video memory16 GB vs 24 GB+50%
3DMark Steel Nomad Light27,180 vs 30,125+11%
GPU shader cores7,680 vs 10,496+37%

Specifications

Side by side

Only differences	Asus ROG Strix Scar 18 G835 RTX 5080 (2025)≈ $5,5007.6	Asus ROG Strix Scar 18 G835 RTX 5090 (2025)≈ $5,2009.0
Graphics
Graphics card	GeForce RTX 5080 Laptop	GeForce RTX 5090 Laptop
GPU maker	NVIDIA	NVIDIA
GPU power (TGP)	175 W	175 W
Video memory	16 GB	24 GB
Video memory type	GDDR7	GDDR7
GPU shader cores	7,680	10,496
GPU compute (FP32)	42 TFLOPS	51.4 TFLOPS
3DMark Steel Nomad Light	27,180	30,125
Processor
Processor	Core Ultra 9 275HX	Core Ultra 9 290HX Plus
CPU maker	Intel	Intel
CPU cores	24	24
CPU threads	24	—
Max CPU clock	5.4 GHz	5.5 GHz
Processor options	Core Ultra 9 275HX	Core Ultra 9 275HX, Core Ultra 9 290HX Plus
Geekbench 6 multi-core	22,256	—
Geekbench 6 single-core	3,276	—
Cinebench 2024 multi-core	2,116	—
Display
Screen size	18″	18″
Resolution	2560 × 1600	3840 × 2400
Resolution class	QHD (1440p/1600p)	4K (2160p/2400p)
Refresh rate	240 Hz	300 Hz
Panel type	IPS	Mini-LED
Brightness	1,200 nits	1,200 nits
sRGB coverage	100%	100%
Response time	3 ms	3 ms
DCI-P3 coverage	100%	100%
Pixel density	168 ppi	168 ppi
Aspect ratio	16:10	16:10
G-Sync / FreeSync	Yes	Yes
Advanced Optimus	No	No
MUX switch	Yes	Yes
HDR	Yes	Yes
Touchscreen	No	No
Memory & storage
RAM (up to)	64 GB	64 GB
RAM (base)	64 GB	32 GB
RAM type	DDR5	DDR5
RAM speed	5,600 MHz	5,600 MHz
Max. supported RAM	64 GB	64 GB
RAM slots	2	2
Upgradable RAM	Yes	Yes
SSD (up to)	2,000 GB	4,000 GB
SSD (base)	2,000 GB	1,000 GB
M.2 SSD slots	2	2
SSD interface	PCIe 4.0 x4	PCIe 4.0 x4
Battery & power
Battery capacity	90 Wh	90 Wh
Power adapter	380 W	380 W
USB-C charging (Power Delivery)	Yes	Yes
USB-C charging power	100 W	100 W
Design & cooling
Weight	3.3 kg	3.3 kg
Thickness	32 mm	32 mm
Width	399 mm	399 mm
Depth	298 mm	298 mm
Body material	Aluminium, Plastic	Aluminium, Plastic
Colours	Black	Black
Cooling fans	3	3
Vapor chamber cooling	Yes	Yes
Liquid metal (CPU)	Yes	Yes
Fan noise (max. load)	53.7 dB	53.7 dB
Ports & wireless
Thunderbolt / USB4	Thunderbolt 5	Thunderbolt 5
Thunderbolt or USB4	Yes	Yes
USB-C ports	2	2
USB-A ports	3	3
HDMI	HDMI 2.1	HDMI 2.1
HDMI 2.1	Yes	Yes
(Mini) DisplayPort	No	No
Ethernet	5 Gbit/s	5 Gbit/s
Ethernet port	Yes	Yes
SD card reader	No	No
3.5 mm audio jack	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 7
Bluetooth	5.4	5.4
Keyboard & camera
Backlit keyboard	Yes	Yes
Numeric keypad	Yes	Yes
Webcam	1,080p	1,080p
IR camera (face login)	Yes	Yes
Fingerprint reader	No	No
Audio
Speakers	4 speakers	4 speakers
Dolby Atmos	Yes	Yes