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Grey gaming laptop with thin 16 inch OLED screen and compact chassis

ASUS

ASUS ROG Zephyrus G16 GU605CW gaming laptop

SKU CH-N5H5-E18H5

16-inch 2.5K 240Hz OLED laptop with Intel Core Ultra 9-285H, RTX 5080 16GB GDDR7, 32GB LPDDR5X and 2TB NVMe SSD

  • ColorEclipse Gray
  • Operating SystemWindows 11 Home
  • CPUIntel® Core Ultra 9-285H
  • Screen16" 2.5K
  • Memory32GB
  • Storage2 TB M.2 PCIe 4.0 x4 NVMe SSD

Color Eclipse Gray

Operating System Windows 11 Home

GPU|Memory|SSD GeForce RTX 5080 Laptop GPU|32GB|2 TB

  • 16-core Ultra 9-285H reaches 5.4 GHz turbo for demanding workloads
  • 240 Hz 2.5K OLED panel delivers smooth 2560 x 1600 visuals
  • RTX 5080 with 16 GB GDDR7 powers high-fidelity gaming
  • 32 GB LPDDR5X at 7467 MT/s handles heavy multitasking
  • 2 TB PCIe 4.0 NVMe SSD loads games and apps fast

Core specification

The ASUS ROG Zephyrus G16 GU605CW is a 16-inch gaming laptop built around an Intel Core Ultra 9 285H processor with 16 cores and a 5.4 GHz maximum turbo frequency. It targets users who need a portable workstation-class machine for gaming and content creation.

Thermal upgrade impact

HIDevolution applies Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU as a thermal interface material upgrade. This change lowers component temperatures under sustained load compared with the stock configuration.

Deciding specification

The NVIDIA GeForce RTX 5080 graphics card with 16 GB GDDR7 video memory determines whether this system meets the performance ceiling required for 4K gaming or heavy GPU compute workloads.

Highlights

  • 16-core Ultra 9-285H reaches 5.4 GHz turbo for demanding workloads
  • 240 Hz 2.5K OLED panel delivers smooth 2560 x 1600 visuals
  • RTX 5080 with 16 GB GDDR7 powers high-fidelity gaming
  • 32 GB LPDDR5X at 7467 MT/s handles heavy multitasking
  • 2 TB PCIe 4.0 NVMe SSD loads games and apps fast

Specifications

BrandASUS
SeriesROG Zephyrus G16
ModelGU605CW-G16.U95080
Part NumberGU605CW-G16.U95080-HID1
ColorEclipse Gray
Operating SystemWindows 11 Home
CPUIntel® Core Ultra 9-285H
Screen16" 2.5K
Memory32GB
Storage2 TB M.2 PCIe 4.0 x4 NVMe SSD
Graphics CardNVIDIA® GeForce® RTX™ 5080
Video Memory16GB
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
Core NameArrow Lake
Turbo FrequencyMax Turbo Frequency 5.4 GHz
CPU L3 Cache24 MB
Screen Size16.0"
TouchscreenNo
Display Type2.5K
Resolution2560 x 1600
Refresh Rate240Hz
Display Features2.5K WQXGA 240Hz OLED
GPU/VPUGeForce RTX 5080 Laptop GPU
Graphic TypeDedicated Card
SSD2TB
HDDNo
Storage Spec2 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
WiFi GenerationWi-Fi 7
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
Thunderbolt1x Thunderbolt™ 4 support DisplayPort™ / power delivery
HDMI1x HDMI 2.1 FRL
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
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

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the LPDDR5X memory need any future upgrade or replacement?

The 32 GB LPDDR5X is soldered to the board, so it cannot be upgraded or replaced later.

What limit appears first during long gaming sessions on the RTX 5080?

The GPU hits its thermal ceiling before the CPU, even with the Gelid GC Extreme paste applied.

How loud and hot does the chassis get when the Ultra 9 285H runs at 5.4 GHz all day?

Fan noise rises to a noticeable hum and the keyboard deck reaches warm temperatures after sustained loads.

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