ASUS ROG Strix G18 2025 - Core Ultra 9, RTX 5080, 32GB, 2TB
ASUS
ASUS ROG Strix G18 2025 - Core Ultra 9, RTX 5080, 32GB, 2TB
The ASUS ROG Strix G18 2025 - Core Ultra 9, RTX 5080, 32GB, 2TB is a large-format gaming laptop built for enthusiasts who need desktop-class GPU power in a portable chassis. Equipped with an Intel Core Ultra 9 processor and an NVIDIA GeForce RTX 5080 Laptop GPU, it targets players and content creators who demand high-refresh-rate visuals and sustained performance. The 18-inch ROG Nebula Display and broad connectivity suite make it equally capable as a primary workstation replacement.
Why this product
24-core Intel Core Ultra 9 processor
The Intel Core Ultra 9 275HX runs up to 5.4 GHz across 24 cores and 24 threads, with a 36MB cache and up to 80W draw, so frame rates stay consistent during extended sessions.
RTX 5080 at up to 175W TGP
The NVIDIA GeForce RTX 5080 Laptop GPU runs at up to 175W max TGP with Dynamic Boost, backed by 16GB of GDDR7 memory, and supports DLSS and Frame Generation for high-fidelity gaming.
18" 2.5K 240Hz ROG Nebula Display
The 2560×1600 IPS-level panel covers 100% DCI-P3, is Pantone Validated, and pairs G-Sync with Dolby Vision HDR and 500 nits brightness, reducing the need for an external monitor.
Thunderbolt 5 and broad port selection
Two Thunderbolt 5 ports (up to 120 Gbps each) sit alongside HDMI 2.1, three USB 3.2 Gen 2 Type-A ports, and a 2.5G Ethernet jack for a fully wired or external-display setup.
Tool-less upgradeable RAM and SSD
Memory supports up to 64GB via dual-channel SO-DIMM slots, and the two M.2 slots are PCIe Gen 5-ready, so the storage and RAM can grow without specialized tools.
ROG Intelligent Cooling with liquid metal
An end-to-end vapor chamber, Tri-Fan technology, and Conductonaut Extreme liquid metal compound work together to sustain high GPU and CPU clocks over long gaming sessions.
- ProcessorIntel Core Ultra 9 275HX, up to 5.4 GHz, 24 cores
- GPUNVIDIA GeForce RTX 5080 Laptop GPU, 16GB GDDR7, 175W max TGP
- Display18" 2.5K (2560×1600) IPS-level, 240Hz, 100% DCI-P3
- RAM32GB DDR5-5600 (expandable to 64GB)
- Storage2TB PCIe 4.0 NVMe M.2 SSD
- Weight3.20 kg (7.05 lbs)
- WirelessWi-Fi 7 (802.11be), Bluetooth 5.4
- OSWindows 11 Home
- SKUASU-2981
- EAN4711636485630
- Ships with Windows 11 Home — compatible with the full Windows 11 software ecosystem out of the box.
- Thunderbolt 5 ports support DisplayPort, Power Delivery, and G-Sync, so it connects to a wide range of external monitors and docking stations.
- Wi-Fi 7 (802.11be) and Bluetooth 5.4 are built in, covering current and recent-generation wireless peripherals and routers.
- The 1080p IR webcam supports Windows Hello facial recognition for password-free login.
- The 380W AC adapter is required for full 175W GPU performance; running on battery alone will reduce GPU power limits via NVIDIA Advanced Optimus.
- At 3.20 kg (7.05 lbs) and requiring a large 380W power brick, this is not designed as an ultraportable or commuter machine.
Best for
- High-refresh competitive gaming: the 240Hz G-Sync display and RTX 5080 at 175W TGP provide the frame rates and smoothness that competitive titles demand.
- Content creation at the desk: 100% DCI-P3 coverage with Pantone Validation and the 2.5K panel make it a capable colour-accurate workstation without a secondary display.
- Future-proofing storage: PCIe Gen 5-ready M.2 slots and tool-less access mean the drive bay can accept next-generation SSDs without a chassis change.
- Heavy multi-threaded workloads: 24 cores and 24 threads with up to 5.4 GHz boost make it suitable for video encoding, simulation, or large compilation jobs alongside gaming.
- Multi-monitor or docked setups: two Thunderbolt 5 ports plus HDMI 2.1 and a 2.5G Ethernet port allow a fully wired, multi-display workstation configuration.
Trade-offs
- Frequent travellers: at 3.20 kg plus a 380W power adapter, the total carry weight is substantial for daily commuting or light travel.
- All-day untethered use: the 90Wh battery powers a 175W GPU class system; heavy gaming sessions will require the AC adapter for sustained peak performance.
- Buyers on tight desk space: the 18-inch chassis is physically large, and the external adapter adds to the cable footprint.
- MacOS or Linux users: the device ships with Windows 11 Home and the vendor specifies no alternative OS support in this record.
Dominate Windows 11 Home gaming with Intel® Core™ Ultra 9 processor 275HX and up to NVIDIA GeForce RTX™ 5080 Laptop GPU at 175W max TGP.
Game with confidence thanks to Windows 11 Home and an Intel® Core™ Ultra 9 processor 275HX. Backed up by the serious gaming muscle of up to NVIDIA® GeForce RTX™ 5080 Laptop GPU and 16GB of DDR5-5600 RAM, the 2025 Strix G18 has the perfect amount of power to keep you gaming at peak performance.
Dominant force
High-performance gaming machines need high-performance processors, and up to Intel® Core™ Ultra 9 processor 275HX absolutely delivers. With 24 cores and 24 threads, this gaming and multi-tasking beast can draw up to 80W when needed, ensuring that your games always stay buttery smooth.
Next-gen graphics
Strix G18 boasts up to NVIDIA® GeForce RTX™ 5080 Laptop GPU, ensuring that you'll get incredible framerates and visuals in all the latest games. With NVIDIA® Advanced Optimus that can intelligently switch between battery-saving and high-performance modes when you need it, and 175W max TGP with Dynamic Boost, the Strix G18 is a true next-gen gaming laptop.
Up to 16GB DDR5 5600 RAM and 2TB PCIe Gen4 SSD, both easily upgradable thanks to a tool-less access design.
General
| Brand | ASUS |
|---|---|
| Model | G815LW-G18.U95080 |
| Operating System | Windows 11 Home |
| Color | Eclipse Gray |
| Weight | 3.20 kg (7.05 lbs) |
Processor & Memory
| CPU | Intel Core Ultra 9 275HX, 2.7 GHz base, up to 5.4 GHz, 24 cores, 24 threads, 36MB cache |
|---|---|
| CPU TDP | Up to 80W |
| NPU | Intel AI Boost NPU up to 13 TOPS |
| RAM | 32GB DDR5-5600 SO-DIMM, dual channel |
| Max RAM | 64GB |
Display & Graphics
| Screen Size | 18 inch |
|---|---|
| Resolution | 2560 × 1600 (WQXGA / 2.5K) |
| Panel Type | IPS-level, Anti-glare |
| Refresh Rate | 240Hz |
| Response Time | 3ms |
| Color Gamut | 100% DCI-P3, Pantone Validated |
| Brightness | 500 nits |
| Display Features | G-Sync, Dolby Vision HDR |
| GPU | NVIDIA GeForce RTX 5080 Laptop GPU |
| GPU Clock | ROG Boost: 1550MHz (1500MHz Boost + 50MHz OC) |
| GPU TGP | 175W max (150W + 25W Dynamic Boost) |
| VRAM | 16GB GDDR7 |
Storage, Connectivity & Battery
| Storage | 2TB PCIe 4.0 NVMe M.2 SSD |
|---|---|
| SSD Slots | 2× M.2 PCIe, PCIe Gen 5-ready |
| Thunderbolt | 2× Thunderbolt 5 with DisplayPort / Power Delivery / G-Sync (up to 120 Gbps) |
| USB | 3× USB 3.2 Gen 2 Type-A (up to 10 Gbps) |
| Video Out | HDMI 2.1 FRL |
| Ethernet | 2.5G LAN |
| Audio Jack | 1× 3.5mm Combo Audio Jack |
| Wi-Fi | Wi-Fi 7 (802.11be), Triple Band |
| Bluetooth | 5.4 |
| Webcam | 1080p FHD IR Camera (Windows Hello) |
| Keyboard | Backlit Chiclet, 4-Zone RGB, with Numpad |
| Audio | Dolby Atmos, 2-speaker system with Smart Amplifier, built-in array microphone |
| Battery | 90Wh, 4-cell Li-ion |
| Power Supply | 380W AC Adapter |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.