ASUS ROG Strix G18 G815LW-S9005W Ultra 9 275HX 18″ WQXGA 32GB 2TB SSD RTX 5080 Wi-Fi 7 Win 11
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About This Item
- 18-inch WQXGA IPS-Level display with 240 Hz refresh rate, 500 nits brightness, and Dolby Vision HDR
- Intel Core Ultra 9 275HX processor (24 cores) with dedicated NPU for up to 36 TOPs AI performance
- NVIDIA GeForce RTX 5080 discrete graphics with 16 GB GDDR7 VRAM and G-SYNC support
- 32 GB DDR5-5600 RAM in dual-channel and 2 TB PCIe 4.0 NVMe SSD storage
- Wi-Fi 7 (802.11be), Bluetooth 5.4, and 2.5 GbE LAN with 2x Thunderbolt 5 and 3x USB-A ports
- Per-key RGB backlit keyboard, Dolby Atmos audio, and Full HD IR camera with Windows Hello
- 90 Wh battery with 380 W AC adapter and USB Type-C Power Delivery charging
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ASUS ROG Strix G18 | Intel Core Ultra 9 & RTX 5080 Gaming Powerhouse
The ASUS ROG Strix G18 G815LW-S9005W Intel Core Ultra 9 275HX Laptop 45.7 cm (18″) WQXGA 32 GB DDR5-SDRAM 2 TB SSD NVIDIA GeForce RTX 5080 Wi-Fi 7 (802.11be) Windows 11 Home Grey is built for demanding UK gamers. It combines next-generation processing with a high-refresh-rate display. This machine targets high-fidelity performance.
Slim Technical Specifications
| Metric | Specification |
|---|---|
| Processor | Intel Core Ultra 9 275HX |
| Graphics | NVIDIA GeForce RTX 5080 (16 GB GDDR7) |
| Display | 18″ WQXGA (2560 x 1600), 240 Hz, IPS-Level |
| Memory | 32 GB DDR5-5600 (2x 16 GB) |
| Storage | 2 TB PCIe 4.0 NVMe SSD |
| Connectivity | Wi-Fi 7, Bluetooth 5.4, 2.5Gb Ethernet |
Intel Core Ultra 9 Processing Power
The processor features a hybrid architecture with 8 performance cores and 16 efficient cores. This handles heavy gaming loads and multitasking efficiently. The NPU supports AI workloads, offering up to 36 TOPs total processor performance. Because of the 160 W maximum turbo power, verify your cooling setup is adequate for sustained loads.
NVIDIA GeForce RTX 5080 Graphics
The discrete GPU utilizes GDDR7 memory for high bandwidth. It supports NVIDIA G-SYNC to eliminate screen tearing during fast-paced gameplay. The 16 GB VRAM buffer is essential for high-resolution textures in modern titles. This hardware is ready for ray tracing workloads.
High-Refresh WQXGA Display
The 18-inch IPS-Level panel runs at 240 Hz. This provides fluid motion clarity for competitive gaming. With 500 cd/m² brightness and 100% DCI-P3 colour coverage, visuals remain sharp and vibrant. The anti-glare coating reduces reflections in well-lit rooms. It also supports Dolby Vision HDR for enhanced contrast.
Connectivity: Wi-Fi 7 & Thunderbolt 5
This model includes Wi-Fi 7 for reduced latency on compatible UK routers. For wired connections, the 2.5Gb Ethernet port ensures stable data transfer. You also get two Thunderbolt 5 ports and three USB Type-A ports. This allows for extensive peripheral expansion without needing a dock.
Memory and Storage Configuration
It ships with 32 GB of DDR5 RAM running at 5600 MHz in a dual-channel setup. This speed is crucial for reducing game load times. The 2 TB M.2 SSD provides ample space for large game libraries. Note that the maximum internal memory is 32 GB, so upgrades are limited to replacing the existing modules.
Cooling and Build Notes
The chassis is a clamshell design in Eclipse Gray. It includes per-key RGB lighting and a numeric keypad. The 380 W AC adapter supports fast charging (50% in 30 minutes). However, at 3.42 kg, this is a desktop replacement, not a lightweight travel machine.
In the box
- ASUS ROG Strix G18 Laptop
- 380 W AC Adapter
- Power Cord
- Documentation
Before you order
- Confirm the keyboard layout is UK English (QWERTY) for this specific SKU.
- Verify the AC plug type included is a UK 3-pin plug.
- Check the warranty region coverage for the UK.
- Confirm Wi-Fi 7 band support with your specific router configuration.
Buyer FAQs
Does this laptop support Windows Hello facial recognition?
Is the RAM upgradeable?
Does it have a number pad?
Can it charge via USB-C?
Is an optical drive included?
The short version
This ASUS ROG Strix G18 is a top-tier choice for UK gamers needing maximum 2025 performance. It is best suited for users who prioritise raw power and a large display over portability. The combination of the Intel Core Ultra 9 and RTX 5080 offers significant future-proofing. Covered by the applicable manufacturer warranty.
| Bundled software | Xbox Game Pass for PC_3 months (*Terms and exclusions apply. Offer only available in eligible markets for Xbox Game Pass for PC. Eligible markets are determined at activation. Game catalog varies by region, device, and time.) |
|---|---|
| Colour name | Eclipse Gray |
| Product type | Laptop |
| Market positioning | Gaming |
| Form factor | Clamshell |
| Product colour | Grey |
| Country of origin | China |
| HD type | WQXGA |
| Display brightness | 500 cd/m² |
| Contrast ratio typical | 1000:1 |
| Display diagonal | 45.7 cm (18″) |
| Anti-glare screen | Yes |
| RGB colour space | DCI-P3 |
| High Dynamic Range HDR technology | Dolby Vision |
| Colour gamut | 100% |
| Native aspect ratio | 16:10 |
| High Dynamic Range HDR supported | Yes |
| Processor cache | 36 MB |
| Processor model | 275HX |
| Processor boost frequency | 5.4 GHz |
| Processor threads | 24 |
| Processor manufacturer | Intel |
| Processor family | Intel Core Ultra 9 |
| Processor base power | 55 W |
| Maximum turbo power | 160 W |
| Efficient-core base frequency | 2.1 GHz |
| Performance-core base frequency | 2.7 GHz |
| Efficient-core Max Turbo Frequency | 4.6 GHz |
| Performance-core Max Turbo Frequency | 5.4 GHz |
| Performance cores | 8 |
| Efficient cores | 16 |
| Neural processor unit NPU | Intel AI Boost |
| Sparsity support | Yes |
| Windows Studio effects support | Yes |
| AI software frameworks supported by NPU | DirectML, OpenVINO, Windows ML, ONNX RT, WebNN |
| Total processor performance up to | 36 TOPs |
| NPU performance up to | 13 TOPs |
| GPU performance up to | 8 TOPs |
| Memory form factor | SO-DIMM |
| Internal memory | 32 GB |
| Memory layout slots x size | 2 x 16 GB |
| Memory clock speed | 5600 MHz |
| Memory slots | 2x SO-DIMM |
| Maximum internal memory | 32 GB |
| Memory channels | Dual-channel |
| SSD form factor | M.2 |
| Storage media | SSD |
| Optical drive type | No |
| Number of SSDs installed | 1 |
| SSD interface | PCI Express 4.0 |
| Total storage capacity | 2 TB |
| Total SSDs capacity | 2 TB |
| NVMe | Yes |
| Discrete graphics card | Yes |
| Discrete graphics card memory | 16 GB |
| On-board graphics card family | Intel Graphics |
| On-board graphics card | Yes |
| On-board graphics card model | Intel Graphics |
| Discrete graphics card model | NVIDIA GeForce RTX 5080 |
| Discrete graphics memory type | GDDR7 |
| On-board GPU manufacturer | Intel |
| Audio system | Dolby Atmos |
| Number of built-in speakers | 2 |
| Built-in microphone | Yes |
| Front camera | Yes |
| Front camera HD type | Full HD |
| Infrared IR camera | Yes |
| Windows Hello | Yes |
| Mobile network connection | No |
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |
| Wi-Fi standards | Wi-Fi 7 (802.11be) |
| Ethernet LAN data rates | 10,100,1000,2500 Mbit/s |
| Bluetooth version | 5.4 |
| Antenna type | 2×2 |
| USB 3.2 Gen 2 3.1 Gen 2 Type-A ports quantity | 3 |
| USB Type-C DisplayPort Alternate Mode | Yes |
| HDMI ports quantity | 1 |
| Ethernet LAN RJ-45 ports | 1 |
| Combo headphone/mic port | Yes |
| USB Power Delivery USB PD | Yes |
| Thunderbolt 5 ports quantity | 2 |
| Intel Thunderbolt 5 | Yes |
| Pointing device | Touchpad |
| Numeric keypad | Yes |
| Keyboard backlit | Yes |
| Keyboard backlit colour | RGB |
| Keyboard backlit zone | Per-key RGB |
| Copilot key | Yes |
| Operating system architecture | 64-bit |
| Trial software | 1-month trial for new Microsoft 365 customers. Credit card required. |
| Operating system installed | Windows 11 Home |
| Microsoft Copilot | Yes |
| Commodity Classification Automated Tracking System CCATS | 8471300000 |
| Battery technology | Lithium-Ion (Li-Ion) |
| Number of battery cells | 4 |
| Battery capacity | 90 Wh |
| Fast charging | Yes |
| Fast charging time 50 | 30 min |
| AC adapter power | 380 W |
| AC adapter frequency | 50 – 60 Hz |
| AC adapter input voltage | 100 – 240 V |
| AC adapter output current | 19 A |
| AC adapter output voltage | 20 V |
| USB Type-C charging port | Yes |
| Password protection | Yes |
| Trusted Platform Module TPM | Yes |
| Password protection type | BIOS, User |
| Width | 399 mm |
| Depth | 298 mm |
| Height front | 2.35 cm |
| Height rear | 3.2 cm |
| Weight | 3.42 kg |
| Package weight | 5.67 kg |
| Package width | 515 mm |
| Package height | 305 mm |
| Package depth | 65 mm |
| AC adapter included | Yes |
| Distributor SKUs | 53184, 10451029, CM52909, STD10225406, 2009549, CLG815LW-S9005W |
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