ASUS ROG Strix G18 G815LR-TT281W Intel Core Ultra 9 290HX Plus Laptop 45.7 cm (18") 2.5K 32 GB DDR5-SDRAM 1 TB SSD NVIDIA GeForce RTX 5070 Ti Wi-Fi 7 (802.11be) Windows 11 Home Grey
Product Technical Specification
| Design | |
| Colour name | Eclipse Gray |
| Product type | Notebook |
| Product colour | Grey |
| Form factor | Clamshell |
| Market positioning | Gaming |
| Introduction year | 2025 |
| Country of origin | China |
| Display | |
| Display diagonal | 18 |
| Display resolution | 2560 x 1600 |
| Touchscreen | No |
| HD type | 2.5K |
| Panel type | IPS-Level |
| Native aspect ratio | 16:10 |
| Anti-glare screen | Yes |
| Display brightness | 500 |
| RGB colour space | DCI-P3 |
| Colour gamut | 100 |
| Maximum refresh rate | 300 |
| Contrast ratio (typical) | 1700:1 |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | Dolby Vision |
| Processor | |
| Processor manufacturer | Intel |
| Processor family | Intel Core Ultra 9 |
| Processor generation | Intel Core Ultra (Series 2) |
| Processor model | 290HX Plus |
| Processor cores | 24 |
| Processor threads | 24 |
| Processor boost frequency | 5.5 |
| Performance cores | 8 |
| Efficient cores | 16 |
| Performance-core Max Turbo Frequency | 5.5 |
| Efficient-core Max Turbo Frequency | 4.7 |
| Performance-core base frequency | 2.7 |
| Efficient-core base frequency | 1.8 |
| Processor cache | 36 |
| Processor base power | 55 |
| Maximum turbo power | 160 |
| Neural processor unit (NPU) | |
| 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 |
| NPU performance up to | 13 |
| GPU performance up to | 8 |
| Memory | |
| Internal memory | 32 |
| Internal memory type | DDR5-SDRAM |
| Memory clock speed | 5600 |
| Memory form factor | SO-DIMM |
| Memory layout (slots x size) | 2 x 16 |
| Memory slots | 2x SO-DIMM |
| Maximum internal memory | 64 |
| Memory channels | Dual-channel |
| Storage | |
| Total storage capacity | 1000 |
| Storage media | SSD |
| Total SSDs capacity | 1000 |
| Number of SSDs installed | 1 |
| SSD capacity | 1000 |
| SSD interface | PCI Express 4.0 |
| NVMe | Yes |
| SSD form factor | M.2 |
| Optical drive type | No |
| Graphics | |
| Discrete GPU manufacturer | NVIDIA |
| Discrete graphics card model | NVIDIA GeForce RTX 5070 Ti |
| Discrete graphics card memory | 12 |
| Discrete graphics memory type | GDDR7 |
| On-board graphics card | Yes |
| On-board GPU manufacturer | Intel |
| Discrete graphics card | Yes |
| On-board graphics card family | Intel Graphics |
| On-board graphics card model | Intel Graphics |
| Audio | |
| Audio system | Dolby Atmos |
| Number of built-in speakers | 2 |
| Built-in microphone | Yes |
| Camera | |
| Front camera | Yes |
| Front camera resolution | 1920 x 1080 |
| Front camera HD type | Full HD |
| Infrared (IR) camera | Yes |
| Network | |
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |
| Wi-Fi standards | Wi-Fi 7 (802.11be) |
| Mobile network connection | No |
| Antenna type | 2x2 |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000,2500 |
| Bluetooth | Yes |
| Bluetooth version | 5.4 |
| Ports & interfaces | |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 3 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| Thunderbolt 5 ports quantity | 2 |
| Intel® Thunderbolt 5 | Yes |
| Combo headphone/mic port | Yes |
| Keyboard | |
| Pointing device | Touchpad |
| Numeric keypad | Yes |
| Keyboard backlit | Yes |
| Keyboard backlit colour | RGB |
| Keyboard backlit zone | Per-key RGB |
| Copilot key | Yes |
| Software | |
| Operating system architecture | 64-bit |
| Microsoft Copilot | Yes |
| Trial software | 1-month trial for new Microsoft 365 customers |
| Operating system installed | Windows 11 Home |
| Bundled software | Xbox Game Pass Premium_2 months (*Terms and exclusions apply. Offer only available in eligible markets for Xbox Game Pass Premium. Eligible markets are determined at activation. Game catalog varies by region, device, and time.) |
| Battery | |
| Battery technology | Lithium-Ion (Li-Ion) |
| Number of battery cells | 4 |
| Battery capacity | 90 |
| Fast charging | Yes |
| Fast charging time (50%) | 30 |
| Power | |
| AC adapter power | 280 |
| AC adapter frequency | 50 - 60 |
| AC adapter input voltage | 100 - 240 |
| AC adapter output current | 14 |
| AC adapter output voltage | 20 |
| USB Type-C charging port | Yes |
| USB Power Delivery (USB PD) | Yes |
| Security | |
| Face recognition | Yes |
| Windows Hello | Yes |
| Trusted Platform Module (TPM) | Yes |
| Password protection | Yes |
| Password protection type | BIOS,User |
| Weight & dimensions | |
| Width | 399 |
| Depth | 298 |
| Height (front) | 23.5 |
| Height (rear) | 32 |
| Weight | 3200 |
| Packaging data | |
| Package width | 106 |
| Package depth | 490 |
| Package height | 355 |
| Package weight | 6810 |
| Packaging content | |
| AC adapter included | Yes |
| Logistics data | |
| Commodity Classification Automated Tracking System (CCATS) | 8471300000 |
Delivery Options
Economy Delivery (UK)
Fast & Tracked by Courier (UK)
Game with confidence thanks to Windows 11 Pro and up to Intel® Core™ Ultra 9 processor 275HX. Backed up by the serious gaming muscle of up to NVIDIA® GeForce RTX™ 5080 Laptop GPU and up to 32GB of DDR5-5600 RAM, the 2025 Strix G18 has the perfect amount of power to keep you gaming at peak performance. With additional features like NVIDIA® Advanced Optimus, the latest DLSS enhancements, a 2TB PCIe Gen 4 SSD, the Strix G18 is truly a force to be reckoned with.
| Design | |
| Colour name | Eclipse Gray |
| Product type | Notebook |
| Product colour | Grey |
| Form factor | Clamshell |
| Market positioning | Gaming |
| Introduction year | 2025 |
| Country of origin | China |
| Display | |
| Display diagonal | 18 |
| Display resolution | 2560 x 1600 |
| Touchscreen | No |
| HD type | 2.5K |
| Panel type | IPS-Level |
| Native aspect ratio | 16:10 |
| Anti-glare screen | Yes |
| Display brightness | 500 |
| RGB colour space | DCI-P3 |
| Colour gamut | 100 |
| Maximum refresh rate | 300 |
| Contrast ratio (typical) | 1700:1 |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | Dolby Vision |
| Processor | |
| Processor manufacturer | Intel |
| Processor family | Intel Core Ultra 9 |
| Processor generation | Intel Core Ultra (Series 2) |
| Processor model | 290HX Plus |
| Processor cores | 24 |
| Processor threads | 24 |
| Processor boost frequency | 5.5 |
| Performance cores | 8 |
| Efficient cores | 16 |
| Performance-core Max Turbo Frequency | 5.5 |
| Efficient-core Max Turbo Frequency | 4.7 |
| Performance-core base frequency | 2.7 |
| Efficient-core base frequency | 1.8 |
| Processor cache | 36 |
| Processor base power | 55 |
| Maximum turbo power | 160 |
| Neural processor unit (NPU) | |
| 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 |
| NPU performance up to | 13 |
| GPU performance up to | 8 |
| Memory | |
| Internal memory | 32 |
| Internal memory type | DDR5-SDRAM |
| Memory clock speed | 5600 |
| Memory form factor | SO-DIMM |
| Memory layout (slots x size) | 2 x 16 |
| Memory slots | 2x SO-DIMM |
| Maximum internal memory | 64 |
| Memory channels | Dual-channel |
| Storage | |
| Total storage capacity | 1000 |
| Storage media | SSD |
| Total SSDs capacity | 1000 |
| Number of SSDs installed | 1 |
| SSD capacity | 1000 |
| SSD interface | PCI Express 4.0 |
| NVMe | Yes |
| SSD form factor | M.2 |
| Optical drive type | No |
| Graphics | |
| Discrete GPU manufacturer | NVIDIA |
| Discrete graphics card model | NVIDIA GeForce RTX 5070 Ti |
| Discrete graphics card memory | 12 |
| Discrete graphics memory type | GDDR7 |
| On-board graphics card | Yes |
| On-board GPU manufacturer | Intel |
| Discrete graphics card | Yes |
| On-board graphics card family | Intel Graphics |
| On-board graphics card model | Intel Graphics |
| Audio | |
| Audio system | Dolby Atmos |
| Number of built-in speakers | 2 |
| Built-in microphone | Yes |
| Camera | |
| Front camera | Yes |
| Front camera resolution | 1920 x 1080 |
| Front camera HD type | Full HD |
| Infrared (IR) camera | Yes |
| Network | |
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |
| Wi-Fi standards | Wi-Fi 7 (802.11be) |
| Mobile network connection | No |
| Antenna type | 2x2 |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000,2500 |
| Bluetooth | Yes |
| Bluetooth version | 5.4 |
| Ports & interfaces | |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 3 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| Thunderbolt 5 ports quantity | 2 |
| Intel® Thunderbolt 5 | Yes |
| Combo headphone/mic port | Yes |
| Keyboard | |
| Pointing device | Touchpad |
| Numeric keypad | Yes |
| Keyboard backlit | Yes |
| Keyboard backlit colour | RGB |
| Keyboard backlit zone | Per-key RGB |
| Copilot key | Yes |
| Software | |
| Operating system architecture | 64-bit |
| Microsoft Copilot | Yes |
| Trial software | 1-month trial for new Microsoft 365 customers |
| Operating system installed | Windows 11 Home |
| Bundled software | Xbox Game Pass Premium_2 months (*Terms and exclusions apply. Offer only available in eligible markets for Xbox Game Pass Premium. Eligible markets are determined at activation. Game catalog varies by region, device, and time.) |
| Battery | |
| Battery technology | Lithium-Ion (Li-Ion) |
| Number of battery cells | 4 |
| Battery capacity | 90 |
| Fast charging | Yes |
| Fast charging time (50%) | 30 |
| Power | |
| AC adapter power | 280 |
| AC adapter frequency | 50 - 60 |
| AC adapter input voltage | 100 - 240 |
| AC adapter output current | 14 |
| AC adapter output voltage | 20 |
| USB Type-C charging port | Yes |
| USB Power Delivery (USB PD) | Yes |
| Security | |
| Face recognition | Yes |
| Windows Hello | Yes |
| Trusted Platform Module (TPM) | Yes |
| Password protection | Yes |
| Password protection type | BIOS,User |
| Weight & dimensions | |
| Width | 399 |
| Depth | 298 |
| Height (front) | 23.5 |
| Height (rear) | 32 |
| Weight | 3200 |
| Packaging data | |
| Package width | 106 |
| Package depth | 490 |
| Package height | 355 |
| Package weight | 6810 |
| Packaging content | |
| AC adapter included | Yes |
| Logistics data | |
| Commodity Classification Automated Tracking System (CCATS) | 8471300000 |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a very flexible and hassle free returns policy. If
for whatever reason you are not happy with the item purchased you can return
it to us within 12months for a refund (for unused and unopened
items) or within 30 days on opened and used items for a refund. This
applies to items purchased direct through Buykingston only.
Our 30 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items opened and used and that are returned in a resellable
condition.
Our 365 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items that remain sealed and unused.
Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;
- Headphones
- Earphones
- Custom made and designed products such as flash memory products with
custom logo’s on them. E,g USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on
non tracked items.
On unopened items 365 days.
How do i go about returning my order?
Please contact us via our contact page with
your order number where we will present you with an RMA number and returns
label.
Do i need to contact you before returning my order?
Yes, to obtain an RMA number.
Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365
day returns. Of course for faulty items we realise you may no longer have
the packaging.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
direct for assistance.
Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.