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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

  • ColorEclipse Gray
  • Operating SystemWindows 11 Home
  • CPUIntel® Core Ultra 9-285H
  • Screen16" 2.5K
  • Memory32GB
  • Storage4 TB M.2 PCIe 4.0 x4 NVMe SSD
  • 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.

Highlights

  • 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

Specifications

BrandASUS
SeriesROG Zephyrus G16
ModelGU605CX-G16.U9X5090
Part NumberGU605CX-G16.U9X5090-HID4
ColorEclipse Gray
Operating SystemWindows 11 Home
CPUIntel® Core Ultra 9-285H
Screen16" 2.5K
Memory32GB
Storage4 TB M.2 PCIe 4.0 x4 NVMe SSD
Graphics CardNVIDIA® GeForce® RTX™ 5090
Video Memory24GB
Dimensions (W x D x H)13.94" x 9.69" x 0.59" ~ 0.65"
Weight4.08 lbs
CPU TypeIntel Core Ultra 9 (Series 2)
Processor NameIntel Core Ultra 9 285H
Number of Cores16-core (8P+8E) Processor
Turbo FrequencyMax Turbo Frequency 5.4 GHz
CPU L3 Cache24 MB
Screen Size16.0"
TouchscreenNo
Display Type2.5K
Resolution2560 x 1600
Bezel Design100% DCI-P3
Display Features2.5K WQXGA 240Hz OLED
GPU/VPUGeForce RTX 5090 Laptop GPU
Graphic TypeDedicated Card
SSD4TB
HDDNo
Storage Spec2 x 2 TB M.2 PCIe 4.0 x4 NVMe SSD
Memory SpeedLPDDR5X 7467
Memory Spec32 GB onboard
Max Memory Supported32GB
WLANWi-Fi 7(802.11be) (Triple band) 2*2
BluetoothBluetooth® 5.4
USB2x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 2 Type-C support DisplayPort™ / power delivery / G-SYNC
Thunderbolt 3240Hz
ThunderboltWi-Fi 7
HDMI1x HDMI 2.1 FRL
Ethernet1x Thunderbolt™ 4 support DisplayPort™ / power delivery
Audio Ports3.5mm Combo Audio Jack
AudioSmart Amp Technology, Dolby Atmos, AI noise-canceling technology, Hi-Res certification (for headphone), Built-in 3-microphone array
Speaker4-speaker (dual-force woofer) system with Smart Amplifier Technology, 2 Tweeters
Virtual Reality ReadyArrow Lake
TouchpadYes
KeyboardBacklit Chiclet Keyboard 1-Zone RGB
Backlit KeyboardBacklit
Webcam1080P FHD IR Camera for Windows Hello
Card ReaderSD (UHS-II, 312MB/s)
StyleThin and Light
TypeGaming & Entertainment
UsageConsumer
AC Adapter/ChargerRectangle Conn, 240W AC Adapter, Output: 20V DC, 12A, 240W, Input: 100~240C AC 50/60Hz universal
Battery90WHrs, 4S1P, 4-cell Li-ion

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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