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- ROG Strix G18 G815 RTX 5090 (2025)
AsusDesktop replacement
Asus ROG Strix G18 G815 RTX 5090 (2025)
Asus ROG Strix G18 G815 RTX 5090 (2025) is a desktop replacement released in January 2025. Key specs: graphics card GeForce RTX 5090 Laptop, GPU power (TGP) 175 W, processor Core Ultra 9 275HX, screen size 18″.
8.5Score
Graphics9.6
Overall performance9.1
Display6.8
Memory & storage5.1
Battery & portability2.5
Features & cooling8.1
price range—
- Released
- January 2025
- Brand
Asus- Popularity
- #1,191 of 1,575
- Series
- Asus ROG Strix G18 · 21 generations
- Model numbers
- G815
GeForce RTX 5090 LaptopGraphics card
175 WGPU power (TGP)
Core Ultra 9 275HXProcessor
18″Screen size
240 HzRefresh rate
64 GBRAM (up to)
90 WhBattery capacity
3.42 kgWeight
Spec guide
How it ranks among desktop replacements of 2025
GPU power (TGP) · 175 WTop 11%Screen size · 18″Top 10%Refresh rate · 240 HzTop 25%RAM (up to) · 64 GBTop 31%Battery capacity · 90 WhTop 39%Weight · 3.42 kgBottom 6%
Compared with desktop replacements released in 2025. Bars show the share of models it beats.
compared with other desktop replacements
Why is ROG Strix G18 G815 RTX 5090 (2025) a good choice?
3DMark Steel Nomad Light: 32,766better than 97% of desktop replacements
Geekbench 6 multi-core: 22,783better than 85% of desktop replacements
GPU power (TGP): 175 Wbetter than 70% of desktop replacements
Video memory: 24 GBbetter than 90% of desktop replacements
CPU cores: 24better than 72% of desktop replacements
Fan noise (max. load): 49.7 dBbetter than 85% of desktop replacements
Weak points
Battery capacity: 90 Whworse than 92% of desktop replacements
Specifications
Full specifications
Graphics
- GPU maker
- NVIDIA
- GPU power (TGP)
- 175 W
- Video memory
- 24 GB
- GPU shader cores
- 10,496
- GPU compute (FP32)
- 51.4 TFLOPS
- 3DMark Steel Nomad Light
- 32,766
Processor
- CPU maker
- Intel
- CPU cores
- 24
- CPU threads
- 24
- Max CPU clock
- 5.4 GHz
- Processor options
- Ryzen 9 8940HX, Core Ultra 9 275HX, Ryzen 9 9955HX
- Geekbench 6 multi-core
- 22,783
- Geekbench 6 single-core
- 3,357
- Cinebench 2024 multi-core
- 2,141
Display
- Screen size
- 18″
- Resolution
- 2560 × 1600
- Refresh rate
- 240 Hz
- Brightness
- 500 nits
- sRGB coverage
- 100%
- Response time
- 3 ms
- DCI-P3 coverage
- 100%
- Pixel density
- 168 ppi
- Aspect ratio
- 16:10
- G-Sync / FreeSync
- Yes
- Advanced Optimus
- No
- MUX switch
- Yes
- HDR
- Yes
- Touchscreen
- No
Memory & storage
- RAM (up to)
- 64 GB
- RAM (base)
- 16 GB
- RAM speed
- 5,600 MHz
- Max. supported RAM
- 64 GB
- RAM slots
- 2
- Upgradable RAM
- Yes
- SSD (up to)
- 4,096 GB
- SSD (base)
- 1,024 GB
- M.2 SSD slots
- 2
- SSD interface
- PCIe 4.0 x4
Battery & power
- Battery capacity
- 90 Wh
- Power adapter
- 380 W
- USB-C charging (Power Delivery)
- Yes
- USB-C charging power
- 100 W
Design & cooling
- Weight
- 3.42 kg
- Thickness
- 32 mm
- Width
- 399 mm
- Depth
- 298 mm
- Body material
- Plastic
- Colours
- Black
- Cooling fans
- 3
- Vapor chamber cooling
- Yes
- Liquid metal (CPU)
- Yes
- Fan noise (max. load)
- 49.7 dB
Ports & wireless
- Thunderbolt or USB4
- Yes
- USB-C ports
- 2
- USB-A ports
- 3
- HDMI
- HDMI 2.1
- HDMI 2.1
- Yes
- (Mini) DisplayPort
- No
- Ethernet port
- Yes
- SD card reader
- No
- 3.5 mm audio jack
- Yes
- Wi-Fi standard
- Wi-Fi 7
- Bluetooth
- 5.4
Keyboard & camera
- Backlit keyboard
- Yes
- Numeric keypad
- Yes
- Key travel
- 1.7 mm
- Webcam
- 1,080p
- IR camera (face login)
- Yes
- Fingerprint reader
- No
Audio
- Speakers
- 2.0
- Dolby Atmos
- Yes
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
Compare
Compare ROG Strix G18 G815 RTX 5090 (2025) with
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Asus ROG Strix G18 G815 RTX 5090 (2025)vsAsus ROG Strix G18 G814 RTX 4080 (2024)8.56.5In collections
Gaming laptops — CPU maker: Intel + video memory from 16 GB183Gaming laptops: Video memory from 12 GB + refresh rate from 240 hz188Gaming laptops — Video memory from 12 GB + Resolution class: QHD (1440p/1600p)189Gaming laptops — GPU power (TGP) from 140 W + Resolution class: QHD (1440p/1600p)195Gaming laptops: GPU power (TGP) from 140 W + screen size from 17.3″196Gaming laptops — Resolution class: QHD (1440p/1600p) + RAM (up to) from 64 GB201Gaming laptops: GPU power (TGP) from 140 W + refresh rate from 240 hz211Gaming laptops: Video memory from 12 GB + RAM (up to) from 64 GB215
Similar models
MSI2025
Stealth 18 HX AI A2XW RTX 5080 (2025)Core Ultra 9 275HX175 W18″2.89 kg
approx. price≈ $4,900
8.3
