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Grey 16 inch gaming laptop with thin OLED display and tapered chassis

ASUS

ASUS ROG Zephyrus G16 GU605CX 16" 240Hz OLED Ultra 9-285H RTX 5090 32GB 4TB Windows 11 Pro

SKU CH-5CQ6-G2SMC

A 16-inch 240 Hz OLED gaming laptop driven by an Intel Core Ultra 9 285H and an NVIDIA RTX 5090 with 24 GB GDDR7, 32 GB LPDDR5X memory and 4 TB NVMe storage

  • ColorEclipse Gray
  • Operating SystemWindows 11 Pro
  • CPUIntel® Core Ultra 9-285H
  • Screen16" 2.5K
  • Memory32GB
  • Storage4 TB M.2 PCIe 4.0 x4 NVMe SSD
  • 240 Hz OLED display delivers ultra-smooth motion
  • Intel Core Ultra 9 285H reaches 5.4 GHz turbo for demanding workloads
  • RTX 5090 with 24 GB GDDR7 powers high-fidelity graphics
  • 32 GB LPDDR5X 7467 memory handles heavy multitasking
  • Dual 2 TB NVMe SSDs provide 4 TB fast storage

16-inch 240 Hz OLED gaming laptop

The ASUS ROG Zephyrus G16 GU605CX combines a 16.0-inch 2560 x 1600 OLED panel running at 240 Hz with an Intel Core Ultra 9 285H processor and an NVIDIA GeForce RTX 5090 GPU equipped with 24 GB GDDR7 memory. The system ships with 32 GB LPDDR5X 7467 dual-channel memory and 4 TB of NVMe storage across two 2 TB M.2 PCIe 4.0 x4 SSDs. Windows 11 Pro is pre-installed.

Suits creators and gamers needing high refresh

The 2.5K 240 Hz OLED display serves competitive gaming and colour-critical creative work in a chassis measuring 13.94 x 9.69 x 0.59~0.65 inches and weighing 4.08 lbs. Buyers who require user-replaceable memory or a larger screen diagonal should evaluate alternative form factors.

Thermal Grizzly Conductonaut on CPU

The builder applies Conductonaut liquid metal to the CPU and Gelid GC Extreme paste to the GPU, replacing stock thermal interface materials to lower sustained temperatures under load. A full quality-control pass including BIOS and driver updates, burn-in stress testing, benchmark verification, keyboard, touchpad, port and display checks is performed before shipment.

Highlights

  • 240 Hz OLED display delivers ultra-smooth motion
  • Intel Core Ultra 9 285H reaches 5.4 GHz turbo for demanding workloads
  • RTX 5090 with 24 GB GDDR7 powers high-fidelity graphics
  • 32 GB LPDDR5X 7467 memory handles heavy multitasking
  • Dual 2 TB NVMe SSDs provide 4 TB fast storage

Specifications

BrandASUS
SeriesROG Zephyrus G16
ModelGU605CX-G16.U9X5090
Part NumberGU605CX-G16.U9X5090-HID4P
ColorEclipse Gray
Operating SystemWindows 11 Pro
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

What power adapter wattage is required for the RTX 5090 24GB GPU?

The laptop ships with a power adapter sized for the Ultra 9 285H and RTX 5090 24GB combination; use the included unit for full performance.

Will my existing PCIe 3.0 NVMe drive work in the second M.2 slot?

The second M.2 slot supports PCIe 4.0 x4 NVMe SSDs and is backward compatible with PCIe 3.0 drives at their native speed.

How do I verify the OLED panel is running at 240 Hz after setup?

Open Windows Display settings, choose Advanced display, and confirm the refresh rate shows 240 Hz for the 16.0" 2560 x 1600 panel.

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