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ROG Strix G18 G815 RTX 5090 (2025) vs Blade 18 RTX 5090 (2025)

Asus ROG Strix G18 G815 RTX 5090 (2025) vs Razer Blade 18 RTX 5090 (2025)

What ROG Strix G18 G815 RTX 5090 (2025) does better (6) and where Blade 18 RTX 5090 (2025) wins (8) — every spec side by side.

Asus · 2025ROG Strix G18 G815 RTX 5090 (2025)

8.5Score

6 advantages

Razer · 2025Blade 18 RTX 5090 (2025)

9.4Score

8 advantages

Higher score

9.6Graphics9.4

9.1Overall performance8.9

6.8Display9.4

5.1Memory & storage6.4

2.5Battery & portability7.8

8.1Features & cooling7.1

Dimensions

Size comparison

ROG Strix G18 G815 RTX 5090 (2025)Blade 18 RTX 5090 (2025)

	ROG Strix G18 G815 RTX 5090 (2025)	Blade 18 RTX 5090 (2025)	Difference
Depth	298 mm	275.4 mm	+22.6 mm
Width	399 mm	400 mm	−1 mm
Thickness	32 mm	27.9 mm	+4.1 mm
Weight	3.4 kg	3.1 kg	+0.3 kg

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

Why is ROG Strix G18 G815 RTX 5090 (2025) better than Blade 18 RTX 5090 (2025)?

3DMark Steel Nomad Light32,766 vs 31,697+3%
Liquid metal (CPU)Yes · Blade 18 RTX 5090 (2025): No
Dolby AtmosYes · Blade 18 RTX 5090 (2025): No
Fan noise (max. load)49.7 dB vs 66.3 dB+33%
Key travel1.7 mm vs 1.5 mm+13%
Geekbench 6 single-core3,357 vs 3,281+2%

Why is Blade 18 RTX 5090 (2025) better than ROG Strix G18 G815 RTX 5090 (2025)?

Panel typeIPS vs Mini-LED
SSD (up to)4,096 GB vs 8,192 GB2×
Refresh rate240 Hz vs 300 Hz+25%
Weight3.42 kg vs 3.1 kg+10%
RAM (base)16 GB vs 32 GB2×
SD card readerNo · ROG Strix G18 G815 RTX 5090 (2025): Yes
Thickness32 mm vs 27.9 mm+15%
Webcam1,080p vs 1,440p+33%

Specifications

Side by side

Only differences	Asus ROG Strix G18 G815 RTX 5090 (2025)8.5	Razer Blade 18 RTX 5090 (2025)9.4
Graphics
Graphics card	GeForce RTX 5090 Laptop	GeForce RTX 5090 Laptop
GPU maker	NVIDIA	NVIDIA
GPU power (TGP)	175 W	175 W
Video memory	24 GB	24 GB
Video memory type	GDDR7	GDDR7
GPU shader cores	10,496	10,496
GPU compute (FP32)	51.4 TFLOPS	51.4 TFLOPS
3DMark Steel Nomad Light	32,766	31,697
Processor
Processor	Core Ultra 9 275HX	Core Ultra 9 275HX
CPU maker	Intel	Intel
CPU cores	24	24
CPU threads	24	24
Max CPU clock	5.4 GHz	5.4 GHz
Processor options	Ryzen 9 8940HX, Core Ultra 9 275HX, Ryzen 9 9955HX	Core Ultra 9 275HX
Geekbench 6 multi-core	22,783	22,639
Geekbench 6 single-core	3,357	3,281
Cinebench 2024 multi-core	2,141	2,115
Display
Screen size	18″	18″
Resolution	2560 × 1600	2560 × 1600
Resolution class	QHD (1440p/1600p)	QHD (1440p/1600p)
Refresh rate	240 Hz	300 Hz
Panel type	IPS	Mini-LED
Brightness	500 nits	500 nits
sRGB coverage	100%	—
Response time	3 ms	—
DCI-P3 coverage	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	—
Touchscreen	No	No
Memory & storage
RAM (up to)	64 GB	64 GB
RAM (base)	16 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)	4,096 GB	8,192 GB
SSD (base)	1,024 GB	1,024 GB
M.2 SSD slots	2	2
SSD interface	PCIe 4.0 x4	PCIe 4.0 x4
Battery & power
Battery capacity	90 Wh	92 Wh
Power adapter	380 W	330 W
USB-C charging (Power Delivery)	Yes	Yes
USB-C charging power	100 W	100 W
Design & cooling
Weight	3.42 kg	3.1 kg
Thickness	32 mm	27.9 mm
Width	399 mm	400 mm
Depth	298 mm	275.4 mm
Body material	Plastic	Aluminium
Colours	Black	Black
Cooling fans	3	3
Vapor chamber cooling	Yes	Yes
Liquid metal (CPU)	Yes	No
Fan noise (max. load)	49.7 dB	66.3 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 port	Yes	Yes
SD card reader	No	Yes
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
Key travel	1.7 mm	1.5 mm
Webcam	1,080p	1,440p
IR camera (face login)	Yes	Yes
Fingerprint reader	No	No
Audio
Speakers	2.0	4.2
Dolby Atmos	Yes	No