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ASUS ROG Zephyrus G16 Eclipse Gray laptop, thin 16 inch OLED display, .59 to .65 inches thick

ASUS

ASUS ROG Zephyrus G16 GU605CX 16" 240Hz OLED Ultra 9-285H RTX 5090 32 GB LPDDR5X 4 TB NVMe

SKU CH-SDDY-4E0A8

A 16-inch 240Hz OLED gaming laptop with an Intel Core Ultra 9-285H processor, NVIDIA GeForce RTX 5090 graphics with 24 GB GDDR7, 32 GB LPDDR5X memory and a 4 TB NVMe SSD

  • Screen size16.0 in (40.6 cm)
  • ProcessorIntel Core Ultra 9 (Series 2)
  • Graphics processorGeForce RTX 5090 Laptop GPU
  • Memory size32 GB
  • Storage drive4 TB M.2 PCIe 4.0 x4 NVMe SSD
  • Display resolution2560 × 1600

Color Eclipse Gray

Operating System Windows 11 Home

GPU GeForce RTX 5090 Laptop GPU

Memory 32GB

SSD 4 TB

  • 240 Hz OLED panel delivers fluid motion for competitive gaming
  • 16-core Ultra 9-285H reaches 5.4 GHz turbo for heavy workloads
  • RTX 5090 with 24 GB GDDR7 powers high-fidelity ray-traced titles
  • 32 GB LPDDR5X at 7467 MT/s handles multitasking without bottlenecks
  • 4 TB PCIe 4.0 NVMe SSD stores large libraries with fast load times

16-inch 240 Hz OLED gaming laptop

The ASUS ROG Zephyrus G16 GU605CX is a 16-inch gaming laptop built around a 240 Hz OLED panel. It targets enthusiasts who want a high-refresh display in a compact chassis. The system ships with Windows 11 Home and an Intel Core Ultra 9 285H processor. This configuration suits users who prioritise screen quality and portable performance.

Eclipse Gray aluminium chassis

The laptop measures 13.94" x 9.69" x 0.59" ~ 0.65" and weighs 4.08 lbs in an Eclipse Gray finish. HIDevolution applies Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU during assembly. These thermal-interface upgrades are intended to lower component temperatures under sustained load. The thinner profile and revised cooling paste aim to keep the system stable during extended sessions.

24 GB GDDR7 video memory on the RTX 5090

The discrete NVIDIA GeForce RTX 5090 graphics card includes 24 GB of GDDR7 video memory. This frame-buffer size is the key figure for buyers running high-resolution textures, large 3D scenes or GPU-accelerated workloads. The 32 GB LPDDR5X 7467 system memory and 4 TB PCIe 4.0 x4 NVMe SSD complement the graphics subsystem. Matching this VRAM capacity to your workload determines whether the laptop meets your needs.

How it compares

Measured against everything we stock in Gaming Laptop Computers, at today’s prices. Recalculated every night.

Price $4,161.99
Pricier than about 89% of the 5,382 comparable items (median $1,978.99).
Screen size 16.0 in (40.6 cm)
Typical for this category: the median of 5,361 items is 16 in.
Refresh frequency 240 Hz
Higher than about 70% of the 2,443 comparable items (median 165 Hz).

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Specifications

Product
Brand nameASUS
Product lineROG Zephyrus G16
Model nameGU605CX-G16.U9 × 5090
Part numberGU605CX-G16.U9 × 5090-HID2
Product colorEclipse Gray
Design styleThin and Light
Product typeGaming & Entertainment
Recommended useConsumer
Processor
ProcessorIntel® Core Ultra 9-285H
Processor modelIntel Core Ultra 9 285H
CPU cores16-core (8P+8E) Processor
Turbo clock speed5.4 GHz
Processor codenameArrow Lake
L3 cache size24 MB
Memory
Memory size32 GB
RAM type and speedLPDDR5X 7467
Memory configuration32 GB onboard
Maximum supported memory32 GB
Storage
Storage drive4 TB M.2 PCIe 4.0 x4 NVMe SSD
SSD storage4 TB
Hard driveNo
Storage configuration4 TB M.2 PCIe 4.0 x4 NVMe SSD
Display
Screen size16.0 in (40.6 cm)
Display resolution2560 × 1600
Refresh frequency240 Hz
Touch inputNo
Display16 in 2.5K
Display format2.5K
Screen features2.5K WQXGA 240 Hz OLED
Graphics
Graphics processorGeForce RTX 5090 Laptop GPU
Video RAM24 GB
GPU modelNVIDIA® GeForce® RTX™ 5090
Graphics typeDedicated Card
Audio & video
SoundSmart Amp Technology, Dolby Atmos, AI noise-canceling technology, Hi-Res certification (for headphone), Built-in 3-microphone array
Speakers4-speaker (dual-force woofer) system with Smart Amplifier Technology, 2 Tweeters
Web camera1080P FHD IR Camera for Windows Hello
Connectivity
Wi-Fi standardWi-Fi 7
Wi-FiWi-Fi 7(802.11be) (Triple band) 2 × 2
Bluetooth supportBluetooth® 5.4
Ports & slots
USB ports2x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 2 Type-C support DisplayPort™ / power delivery / G-SYNC
Thunderbolt ports1x Thunderbolt™ 4 support DisplayPort™ / power delivery
HDMI ports1x HDMI 2.1 FRL
Audio jacks3.5 mm Combo Audio Jack
Memory card readerSD (UHS-II, 312 MB/s)
Power
Power adapterRectangle Conn, 240 W AC Adapter, Output: 20 V DC, 12A, 240 W, Input: 100 to 240C AC 50/60 Hz universal
Battery pack90WHrs, 4S1P, 4-cell Li-ion
Size & build
Overall dimensions13.94 in × 9.69 in × 0.59 in ~ 0.65 in
Product weight4.08 lb (1.85 kg)
Software
Operating systemWindows 11 Home
More details
Pointing deviceYes
KeyboardBacklit Chiclet Keyboard 1-Zone RGB
Keyboard backlightBacklit

Other versions of this model

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Questions about this item

Does the PCIe 4.0 x4 NVMe interface cap the 4 TB SSD at the standard 4.0 lane speed?

The 4 TB M.2 SSD runs on a PCIe 4.0 x4 NVMe link, so its maximum sequential throughput is limited to the 4.0 lane ceiling.

What are the exact chassis dimensions and weight for the GU605CX to confirm it fits my bag?

The laptop measures 13.94" wide, 9.69" deep and 0.59" to 0.65" high, weighing 4.08 lbs.

How is the Thermal Grizzly Conductonaut applied to the CPU, and what step do installers often miss?

The liquid metal is pre-applied between the CPU die and cold plate; the critical step is ensuring the protective barrier around the die is intact to prevent shorting.

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