ASUS

ASUS ROG Zephyrus M16 GU603H

Expert rating7.8 / 10

CPU:: Core i7-11800H
GPU:: RTX 3060
Display:: 16" WQXGA 165Hz

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Manufacturer: ASUS Last updated: 2026-10-08

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ASUS ROG Zephyrus M16 GU603H Review

ASUS ROG Zephyrus M16 GU603H is a 16-inch gaming laptop with a Core i7-11800H, GeForce RTX 3060 (90 W), 16GB soldered LPDDR4X, 1TB NVMe SSD and a 2560x1600 165Hz IPS display.

A 16-inch gaming laptop weighing 1.9 kg. The 16:10 2560x1600 panel runs at 165 Hz with 100% DCI-P3 colour, and Advanced Optimus switching and Thunderbolt 4 are included. The RTX 3060 is capped at 90 W. The main limitation is memory: 16 GB of LPDDR4X is soldered, with no slots and a 16 GB maximum, so it cannot be upgraded. Storage is easier, with 2 M.2 slots and 1 free. The adapter is 200 W and the battery is 90Wh.

Overview

The M16's ErgoLift hinge and AniMe Matrix lid (on some SKUs) made it a design standout in 2021, pairing 11th-gen Intel silicon with Ampere-generation NVIDIA graphics in a relatively slim chassis for the specs.

Screen replacement note

This chassis is commonly fitted with a 16" WQXGA 165Hz panel from either BOE (NE160QDM-NY3) or CSOT (MNG007DA1-6 and related suffixes) depending on production batch, confirm the exact part number on the panel label before ordering a replacement.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.8 / 10

This 16-inch Zephyrus pairs a Core i7-11800H with an RTX 30 series GPU and 6GB of VRAM. The 2560 x 1600 IPS panel runs at 165Hz in a 16:10 shape, and the 90Wh battery sits in a 1.9 kg body. Thunderbolt 4 and WiFi 6E suit gaming and creative hybrid use.

The 16GB of LPDDR4X is soldered and cannot be expanded, which matters on a 2021 design. Decide whether 16GB will be enough for your projects before buying.

Best for

16:10 gaming/creator hybrid use

Not for

Buyers wanting user-upgradeable RAM

Specifications

What these specs mean

Identity and variant

Brand	ASUS
Series	ROG Zephyrus M16
Series ID	asus-rog-zephyrus-m16-gu603h
SKU Name	ASUS ROG Zephyrus M16 GU603H (Core i7-11800H, RTX 3060, 16GB)
Chassis Code	GU603H
Region Sold	Global

Class and platform

Laptop Class	Gaming
Release Year	2021
Operating System	Windows 11 Home
Weight	1.9 kg

Processor

CPU Brand	Intel
CPU Model	Core i7-11800H
CPU Cores	8

Sustained power

Sustained Power Source	Not Measured
Power Adapter Wattage	200 W

Graphics

GPU Brand	NVIDIA
GPU Model	GeForce RTX 3060
VRAM	6 GB
GPU Max Graphics Power	90 W
Graphics Switching	Advanced Optimus

Memory

RAM Capacity	16 GB
RAM Type	LPDDR4X
Memory Form Factor	Soldered
Memory Soldered	Yes
Max RAM Supported	16 GB

Upgradability

RAM Slots	0
RAM Slots Free	0
Storage Slots	2
Storage Slots Free	1
Storage Form Factor	M.2 2280
Storage Interface	PCIe 4.0 x4
SATA Bay Present	No

Storage as shipped

Storage Capacity	1000 GB
Storage Type	NVMe SSD

Display

Display Size	16 inches
Resolution Width	2560 px
Resolution Height	1600 px
Refresh Rate	165 Hz
Panel Type	IPS
Touchscreen	No
Colour Gamut	100% DCI-P3

Battery and ports

Battery Capacity	90 Wh
Thunderbolt Support	Thunderbolt 4
WiFi Standard	WiFi 6E

FAQs

Can you upgrade the RAM on the ASUS ROG Zephyrus M16 GU603H?

No. The 16 GB of LPDDR4X is soldered, there are no RAM slots, and the maximum supported is 16 GB.

What display does the Zephyrus M16 GU603H have?

It has a 16-inch 2560x1600 IPS panel at 165 Hz with 100% DCI-P3 coverage and no touchscreen.

Can you add storage to the Zephyrus M16 GU603H?

Yes. It has 2 M.2 2280 PCIe 4.0 slots with 1 free, and ships with 1000 GB installed.

Does the Zephyrus M16 GU603H have Thunderbolt?

Yes, Thunderbolt 4 is listed, along with WiFi 6E.