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Eclipse Gray gaming laptop with 16 inch 2.5K 240Hz OLED display

ASUS

ASUS ROG Zephyrus G16 GU605CX 16" 2.5K 240Hz OLED Ultra 9-285H RTX 5090 32 GB LPDDR5X 16 TB

SKU CH-K4MD-SMKZM

A 16-inch 2.5K 240Hz OLED gaming laptop with an Intel Core Ultra 9-285H, RTX 5090 graphics, 32 GB LPDDR5X memory and 16 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 drive16 TB M.2 PCIe 4.0 x4 NVMe SSD
  • Display resolution2560 × 1600
  • 5K 240Hz OLED delivers smooth 2560 x 1600 visuals
  • Intel Core Ultra 9 285H hits 5.4 GHz turbo across 16 cores
  • RTX 5090 with 24 GB GDDR7 powers demanding creative and gaming workloads
  • 32 GB LPDDR5X at 7467 MT/s keeps multitasking responsive
  • 16 TB NVMe storage in dual 8 TB drives loads games and projects fast

16-inch 2.5K 240Hz OLED Gaming Laptop

The ASUS ROG Zephyrus G16 GU605CX is a 16-inch gaming laptop built around a 2.5K 240Hz OLED panel. It targets enthusiasts who want a high-refresh display in a thin chassis. The system ships with Windows 11 Home installed.

OLED panel limits peak sustained brightness

The 16.0-inch WQXGA OLED runs at 2560 x 1600 with a 240Hz refresh rate. OLED technology delivers per-pixel contrast and fast response, though sustained full-screen brightness is lower than LCD alternatives. The 0.59 to 0.65-inch profile restricts cooling headroom for the 5.4 GHz turbo processor.

24 GB GDDR7 video memory decides 4K capability

The GeForce RTX 5090 mobile GPU includes 24 GB of GDDR7 memory. That frame-buffer size determines whether the laptop can hold 4K textures and large scenes without swapping to system RAM. The 32 GB LPDDR5X at 7467 MT/s and 16 TB of PCIe 4.0 x4 NVMe storage support the GPU but do not replace its dedicated memory.

How it compares

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

Price $7,330.99
Pricier than about 93% 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-HID6
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 drive16 TB M.2 PCIe 4.0 x4 NVMe SSD
SSD storage16 TB
Hard driveNo
Storage configuration2 × 8 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

Which storage capacity should I choose for the Zephyrus G16 GU605CX?

This unit ships with 16 TB total — two 8 TB M.2 PCIe 4.0 x4 NVMe SSDs — so there is no capacity option to select at purchase.

What does the 240 Hz OLED panel deliver in daily use?

The 16 inch 2.5K 240 Hz OLED screen refreshes each frame every 4.2 ms, giving smooth motion in fast games and deep contrast for media.

What does the PCIe 4.0 x4 interface cap in practice?

The x4 link limits each 8 TB drive to the PCIe 4.0 maximum throughput, so sequential speeds top out at the Gen 4 ceiling.

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