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Eclipse Gray gaming laptop, thin 16 inch OLED display

ASUS

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

SKU CH-4HR0-T50FN

A 16-inch 240 Hz OLED laptop with an Intel Core Ultra 9 285H, RTX 5090 graphics, 32 GB LPDDR5X memory and 4 TB NVMe storage

  • 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
  • 240 Hz OLED panel delivers smooth motion at 2560 x 1600 resolution
  • 16-core Ultra 9 285H reaches 5.4 GHz turbo for heavy workloads
  • RTX 5090 with 24 GB GDDR7 powers high-fidelity gaming
  • 32 GB LPDDR5X at 7467 MT/s handles multitasking without bottlenecks
  • Dual 2 TB NVMe SSDs combine for 4 TB of fast storage

16-inch 240Hz OLED gaming laptop

The ASUS ROG Zephyrus G16 GU605CX pairs a 16.0" 2560 x 1600 OLED panel running at 240 Hz with an Intel Core Ultra 9-285H processor and NVIDIA GeForce RTX 5090 graphics. Thirty-two gigabytes of LPDDR5X memory at 7467 MT/s and 4 TB of PCIe NVMe storage support demanding creative workloads and modern games. Windows 11 Home ships pre-installed on the Eclipse Gray chassis.

Thermals noise and power in normal use

HIDevolution applies Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU to lower operating temperatures during typical sessions. The 16-core Arrow Lake processor runs at a 2.7 GHz base with a 5.4 GHz max turbo while the RTX 5090 carries 24 GB of GDDR7 video memory. The thin 0.59" to 0.65" profile and 4.08 lb weight keep the system portable for daily carry.

Sustained load behaviour

Under extended load the upgraded thermal interface materials help maintain consistent clock speeds on both the 8P+8E core CPU and the RTX 5090 without rapid throttling. Dual 2 TB PCIe 4.0 x4 NVMe drives deliver steady throughput for large asset streaming while the 240 Hz OLED display keeps motion clear during long gaming or rendering sessions. The 24 MB Smart Cache and high-speed LPDDR5X reduce memory bottlenecks over time.

How it compares

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

Price $4,522.99
Pricier than about 90% 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.
Memory size 32 GB
Typical for this category: the median of 5,206 items is 32 GB.

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Specifications

Product
Brand nameASUS
Product lineROG Zephyrus G16
Model nameGU605CX-G16.U9 × 5090
Part numberGU605CX-G16.U9 × 5090-HID4
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
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 configuration2 × 2 TB M.2 PCIe 4.0 x4 NVMe SSD
Display
Screen size16.0 in (40.6 cm)
Display resolution2560 × 1600
Touch inputNo
Display16 in 2.5K
Display format2.5K
Bezel style100% DCI-P3
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
VR readyArrow Lake
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-FiWi-Fi 7(802.11be) (Triple band) 2 × 2
Bluetooth supportBluetooth® 5.4
Wired network1x Thunderbolt™ 4 support DisplayPort™ / power delivery
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 3 support240 Hz
Thunderbolt portsWi-Fi 7
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

Questions about this item

Will the 16.0-inch chassis fit in a standard 16-inch laptop sleeve?

The chassis measures 13.94" wide by 9.69" deep and stands .59" to .65" tall, so a sleeve sized for 16-inch devices will accommodate it.

Does the 32 GB LPDDR5X memory run at 7467 MT/s on this CPU?

The modules are rated 7467 MT/s; actual speed is subject to system capability and the memory controller of the Intel Core Ultra 9 285H.

How much graphics memory does the RTX 5090 provide for 4K gaming?

The GPU includes 24 GB of GDDR7 video memory, giving ample frame-buffer capacity for high-resolution textures and ray-traced workloads.

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