ASUS ROG Strix SCAR 18 (2026 RTX 5090 Flagship)

Technical Architecture Summary

CPU Family: Intel Core Ultra 9 285HX
Max Graphics TGP: 175W TGP
RAM Upgradability: ✅ Upgradable
Battery / Weight: 90 Wh / 3.1 kg

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Comprehensive Hardware Specification Matrix

Direct engineering breakdown categorized by compute, display, thermal envelope, I/O, and chassis acoustics.

01.Platform & Compute Architecture

Processor / SoC: Intel Core Ultra 9 285HX (Arrow Lake-HX 24-Core)
CPU Core Configuration: 24-core / 24-thread (up to 5.7 GHz Turbo)
Instruction Set: x86_64
Graphics Subsystem: NVIDIA GeForce RTX 5090 Laptop GPU 24GB GDDR7
Max Graphics TGP: 175 Watts
AI NPU Acceleration: 15 TOPS
Operating System: Windows 11 Pro

02.Memory & Storage Upgradability

RAM Capacity Options: 64 GB or 128 GB DDR5 Dual SO-DIMM
RAM Technology / Clock: DDR5-6400 MHz SO-DIMM
Memory Upgradability: Yes (User-Upgradable)
Memory Sockets / Form Factor: 2x DDR5 SO-DIMM sockets
Base NVMe Capacity: 2000 GB
M.2 Expansion Slots: 2 Slots
Storage Bus & Type: Dual M.2 2280 PCIe 5.0 x4 slots with dedicated aluminum heatsinks

03.Display & Color Accuracy

Display Panel Technology: Mini-LED
Screen Diagonal Size: 18 inches
Aspect Ratio: 16:10
Native Resolution: 2560 × 1600 px (ROG Nebula HDR 2.5K 240Hz Mini-LED with 2000+ dimming zones)
Refresh Rate: 240 Hz
Color Gamut Calibration: 100% DCI-P3 wide color gamut, VESA DisplayHDR 1000
Peak Brightness: 1100 nits

04.Chassis, Thermals & Battery

Weight: 3.1 kg (6.8 lbs)
Thickness: 23.1 mm
Chassis Materials: Aluminum lid with semi-translucent keyboard deck and wraparound RGB light bar
Thermal Architecture: ROG Intelligent Cooling with full-width copper heatsink, tri-fan technology and Conductonaut Extreme liquid metal
Battery Capacity: 90 Watt-hours
Bundled Adapter Wattage: 330 W
USB-C Power Delivery Input: Yes