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 GA503QS-HN103T, ASUS ROG Zephryus G15 AMD Ryzen 9 16GB RAM 1TB SSD Nvidia RTX 3080 15.6" 144Hz Gaming Laptop

ASUS ROG Zephryus G15 AMD Ryzen 9 16GB RAM 1TB SSD Nvidia RTX 3080 15.6" 144Hz Gaming Laptop


£1,749.97 Inc VAT

WAS £1,999.97 SAVE £250

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8 In Stock with 30 days free returns

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Key Features

  • AMD Ryzen 9 5900HS Octa Core Processor
  • 15.6" Full HD IPS 144Hz Screen
  • Microsoft Windows 10 Home 64-bit
  • 16GB DDR4 RAM
  • 1TB M.2 NVMe SSD
  • Nvidia GeForce RTX 3080 8GB Graphics
  • USB 3.2 Type-C | HDMI 2.0 | Bluetooth 5.1
  • GA503QS-HN103T
  • ASUS 12 Month Collect & Return Warranty

Stock Code: 6350163 | Part No: GA503QS-HN103T

Free Upgrade to Windows 11*
Free Upgrade to Windows 11* +
3 Year Collect & Return Extended Warranty For Gaming Laptops £129.99
4 Year Collect & Return Extended Warranty For Gaming Laptops £169.99

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ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T)

Power meets portability within the remarkably versatile ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T), which harnesses the immense performances of premium Windows 10 gaming, and places it within an ultra-slim 1.9kg chassis. Performances are effortlessly smooth and uncompromising in stability, courtesy of an AMD Ryzen 9 5900HS CPU and GeForce RTX 3080 GPU. A Full HD 144Hz gaming panel supplies you with the immersive viewing and high-speed responsiveness you need to go deep into the heart of the action and emerge the other side victorious. Lush Dolby Atmos audio emanating from six high-performance speakers immerses you in vibrant surround-sound to enrich every entertainment experience.


Sleek and streamlined

Show off your signature style in Moonlight White or Eclipse Grey. The ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) also features a reinforced metal lid with a precision cut and a dynamic, attention-grabbing dot matrix accent, which adds a subtle shimmering effect from the prismatic film beneath. Stay flexible with astute, user-optimised practicalities such as the 180° ErgoLift hinge which facilitates versatile viewing configurations, as well as an expansive touchpad for more accurate, edge-to-edge navigation.


Game, create, and beyond

Blitz through even the most challenging tasks and programs, from AAA gaming to high-resolution content creation and much more, with the superior power of an AMD Ryzen 9 5900HS CPU and GeForce RTX 3080 GPU. Spend more time doing and less time loading with NVMe PCIe 1TB SSD. The ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) has also been outfitted with dual M.2 slots which connect directly to the CPU for high-end performances, and are even loaded with up to 2TB of expansive storage space so you can always accommodate a growing gaming library and creative portfolio.


Rich detail at gaming speed

Game, create and do more, with the ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T)’s cutting-edge high-resolution, high refresh display. A Full HD 144Hz panel strikes an elegant balance between fast-paced, ultra-responsive action and immersive, detailed visual fidelity. Adaptive-Sync furthers your competitive advantage in online arenas by eliminating gameplay hindrances such as visual tearing and stuttering, while amplifying the fluidity of your gameplay.


Immersive surround sound

Six high-performance speakers powered by Dolby Atmos Technology throws into the center of the scene for an atmospheric and immersive audio experience. Twin tweeters have been calibrated to face front at all times, firing sound directly at the user for a louder volume, with minimised interference from background audio sources. Pairs of force-cancelling woofers located beneath the palm rests help to balance acoustics and minimise unwanted resonance even further for a distinct, flawless audio delivery. Turn up the volume at parties and events and enjoy even louder, more dynamic audio.


Clear voice communications

Updated audio inputs ensure your outgoing audio, for streams and voice chats with teammates, are uncompromising in their clarity and detail. Two-Way AI Noise Cancellation clarifies upstream and downstream audio, removing unwanted ambient noise to ensure you and your conversation partners never miss a single line of dialogue. The 3D mic array captures a vast soundscape which can be uniquely optimised for individual scenarios such as recording live music or hosting conference calls.


Intelligent Cooling improves your experience

The ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) boasts ROG’s Intelligent Cooling philosophy which combines a mixture of astute design features and refined system settings to guarantee the best experience for each chassis and individual components. The ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) features a liquid metal thermal compound which keeps your CPU cool even when under intense heavy loads. A self-cleaning thermal module helps to clear out dust and debris from within the chassis, improving long-term stability, while dual Aero Wave fans rotate with refined blades to enhance airflow with maximum efficiency and minimal noise output. Users also have the ability to optimise cooling performances across individual tasks using the ROG Armoury Crate software.


Always ready for action

Live life untethered and away from wall outlets, courtesy of the ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T)’s high-capacity 90Wh battery. While living life on the move and charging forward to your destinations, don’t be forced to stop along the way to replenish your workstations battery via a wall outlet. With Type-C charging support, the ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) is able to extend its life with charging delivered via portable power packs. Integrated Superfast Intel Wi-Fi 6 (Gig+) also facilitates lower latency online connections, so you can operate with stability and speed anywhere from crowded lecture halls to coffee shops.

*Fast Charging Technology is tested while the device is powered off with the default adapter included with the device. Charging time may vary +/- 10% due to system tolerance.


A stroke of gaming genius

Even the most demanding, perfectionist gamers will feel right at home with the ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T)’s desktop-inspired keyboard form factor, which features separate function blocks for intuitive tactile and visual identification, as well as dedicated hot keys which put media control right at your fingertips. The N-key rollover eliminates errors as you aim to input those game winning combos, and ensure every keystroke is precisely registered and then executed. Each key has also been enhanced for maximum durability and is capable of withstanding over 20 million presses.


Flexible connectivity

A comprehensive range of I/O ports allows you to optimise your gaming setup, even while on the move. Drive a second display to multitask more effectively with help from the multi-purpose USB-C interface featuring DisplayPort 1.4 support. You can also view movies and TV shows in 4K Ultra HD quality on the big screen as you connect the ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) to an external projector via the HDMI 2.0b port. Connect all your critical gaming accessories to create an arsenal that few can match, such as mice, gamepads, headsets and more, to truly enter the online arena prepared for anything. The ASUS ROG Zephyrus G15 GA503 (GA503QS-HN103T) also gives you the freedom to expand your storage on the go with an ultra-fast microSD slot supporting data transfer speeds of up to 312MB/s. An integrated 3.5mm headset jack does away with the need for dongles when you want to enjoy a more private and intimate audio experience.


XBOX Game Pass

100+ PC games included with this device, download and play new games like Microsoft Flight Simulator- plus recent blockbusters like Minecraft Dungeons and Gears Tactics as well as critically-acclaimed indie games. Terms apply.

*Activation required. Credit card required. Unless you cancel, you will be charged the current subscription rate when your trial ends. Game catalog varies over time ( A conversion ratio applies for Xbox Game Pass Ultimate users. Limit: 1 per person/account.



Processor AMD Ryzen 9 5900HS Processor 3.1 GHz (16M Cache, up to 4.5 GHz)
Screen 15.6" (1920x1080 Full HD IPS Resolution, 144Hz, Anti-Glare)
Screen Resolution 1920 x 1080
Operating System Microsoft Windows 10 Home 64-bit
RAM 16GB (DDR4 3200MHz)
Solid State Drive 1TB M.2 NVMe SSD
Hard Drive Not Included
Graphics Dedicated (NVIDIA® GeForce® RTX 3080 Max-Q Design with 8GB GDDR6 Dedicated Memory)
Graphics Type Nvidia GeForce RTX
GPU Clock Speed 780 - 1245 MHz (1345 MHz with ASUS ROG Boost)
NVIDIA CUDA Cores 6144
Bluetooth Bluetooth 5.1
Screen Refresh Rate 144Hz
Max RAM Capacity Max 24GB
Wireless LAN Wi-Fi 6 (802.11ax)
Network Card 10/100/1000 Gigabit Fast Ethernet
Integrated Webcam Not Included
Speakers Integrated Stereo Speaker
USB Ports 2x USB 3.2 Gen2 Type-A, 2x USB 3.2 Gen2 Type-C
Card Reader Micro SD Card Reader
HDMI Port 1x HDMI 2.0 Port
DisplayPort 2x DisplayPort (over USB Type-C)
RJ45 1 x RJ45
Backlit Keyboard Backlit Keyboard
Warranty ASUS 12 Month Collect & Return Warranty (View More Information)
Colour Grey
Weight 1-2 Kg (This Model 1.9 Kg)
Dimensions 355 mm x 243 mm x 19.9 mm
Basket Attach 15.6" ASUS Gaming Laptop

Please note: Pictures are for illustration only. Please contact us if you wish to confirm the specification before ordering.


From the Manufacturer


Product Reviews



ASUS ROG Zephryus G15 AMD Ryzen 9 16GB RAM 1TB SSD Nvidia RTX 3080 15.6" 144Hz Gaming Laptop


£1,749.97 Inc VAT

WAS £1,999.97 SAVE £250

Add To Basket
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