Quick Specs Summary
| Spec | Details |
|---|---|
| Display | 14″ OLED 2.8K (2880×1800) 120Hz |
| CPU | AMD Ryzen 9 8945HS (Zen 5) |
| GPU | NVIDIA GeForce RTX 4090 / 4080 |
| RAM Type | DDR5-5600 LPDDR5X (Soldered) |
| RAM Capacity | 16GB or 32GB (non-upgradeable) |
| SSD Type | M.2 2280 NVMe Gen4 |
| SSD Slots | 1 |
| Charger | 100W USB-C PD + 280W barrel (optional) |
| Thunderbolt | Thunderbolt 4 |
| Upgradeability | ★★☆☆☆ |
ASUS ROG Zephyrus G14 (2024): The Ultraportable Gaming Beast
The ASUS ROG Zephyrus G14 (2024, GA403) is a 14″ gaming ultrabook built for competitive esports and demanding creative work. Powered by the Ryzen 9 8945HS and up to RTX 4090, this laptop brings desktop-class gaming performance in a 1.8kg package with a stunning OLED display.
However, the Zephyrus prioritises portability over upgradeability — RAM is soldered and non-replaceable. Your upgrade options are limited to the SSD. This guide covers exactly what you can change, compatible components, and how to maximise your machine’s lifespan.
RAM — What You Get Is What You Keep
The ASUS ROG Zephyrus G14 (2024) uses DDR5-5600 LPDDR5X RAM that is soldered directly to the motherboard. This means you cannot upgrade RAM after purchase.
You must choose your RAM configuration at purchase:
- 16GB LPDDR5X — Sufficient for gaming, streaming, everyday work
- 32GB LPDDR5X — Recommended for video editing, 3D rendering, heavy multitasking
If you plan to use this laptop for content creation or machine learning, opt for the 32GB model upfront. Gaming performance is identical between 16GB and 32GB in most titles, but creative professionals benefit from the extra capacity.
Dual-Channel Performance
The Zephyrus’s LPDDR5X RAM operates in dual-channel mode, providing excellent memory bandwidth for the Ryzen 9 8945HS. This means you won’t see performance bottlenecks from RAM, even in intensive workloads.
SSD/Storage — The Only Upgrade Path
The ASUS ROG Zephyrus G14 (2024) ships with a single M.2 2280 NVMe Gen4 SSD. You can replace it with a faster or larger drive, but there’s only one slot (no secondary expansion).
Compatible SSD Drives
| Drive | Spec | Speed | Price |
|---|---|---|---|
| Samsung 990 Pro 2TB | M.2 2280 Gen4 | 7,100 MB/s read | £180 |
| WD Black SN850X 2TB | M.2 2280 Gen4 | 7,100 MB/s read | £165 |
| Sabrent Rocket 4 Plus 2TB | M.2 2280 Gen4 | 7,000 MB/s read | £145 |
| Crucial P5 Plus 2TB | M.2 2280 Gen4 | 6,600 MB/s read | £135 |
Storage Recommendations
For gaming: A 1TB Gen4 drive is sufficient for 20-30 AAA titles. Consider upgrading to 2TB if you regularly keep 50+ games installed.
For content creators: Upgrade to 2TB or larger immediately — video editing cache and raw footage consume space rapidly. The Gen4 speed ensures fast scrubbing and renders.
Charger Compatibility
The ASUS ROG Zephyrus G14 (2024) supports 100W USB-C Power Delivery and includes an optional 280W barrel charger for maximum gaming performance.
Charging Options
- 100W USB-C PD charger — Slower charging, suitable for gaming sessions and daily use
- 280W barrel connector — Full power delivery for RTX 4090, reduces throttling during sustained load
100W USB-C PD chargers on Amazon UK
ASUS barrel chargers on Amazon UK
Docking & Thunderbolt 4
The Zephyrus G14 (2024) features Thunderbolt 4 connectivity, enabling fast external storage, high-speed displays, and powerful docking solutions.
Top dock recommendations:
- CalDigit TS4 — 98W charging, 6 × USB-A, Ethernet, SD card reader
- Anker 568 USB-C Dock — 65W charging, 3 × USB-A, HDMI (compact option)
Upgradeability Score
| Component | Score | Notes |
|---|---|---|
| RAM | ★☆☆☆☆ | Soldered — non-upgradeable |
| SSD | ★★★★☆ | Easily replaceable M.2 2280 |
| Charger | ★★★★☆ | USB-C PD + barrel options |
| Overall | ★★☆☆☆ | Limited due to soldered RAM |
How to Upgrade the SSD
Replacing the SSD in the Zephyrus G14 (2024) is straightforward and requires only a Phillips #0 screwdriver.
Steps:
- Power off and unplug the laptop
- Remove the base panel (8-10 screws)
- Locate the M.2 slot near the centre of the board
- Gently pull the NVMe drive out at a 45° angle to release it
- Slide your new drive in at 45° and push down until it clicks
- Reinstall the base panel
Upgrading should take 5-10 minutes. Back up your data before proceeding.
Frequently Asked Questions
Can I upgrade the RAM in the ASUS ROG Zephyrus G14 (2024)?
No — RAM is soldered to the motherboard and cannot be upgraded. You must choose your capacity (16GB or 32GB) at purchase.
What SSD does the Zephyrus G14 (2024) use?
The Zephyrus G14 (2024) uses a single M.2 2280 NVMe Gen4 SSD. You can replace it with any compatible Gen4 drive up to 4TB.
How fast is the SSD in the Zephyrus G14 (2024)?
The stock SSD reads at 7,100 MB/s — excellent for gaming and creative work. Aftermarket Gen4 drives offer similar speeds.
What charger should I use for the Zephyrus G14 (2024)?
The Zephyrus supports both 100W USB-C PD and 280W barrel charging. For RTX 4090 gaming sessions, use the 280W barrel charger to minimise thermal throttling.
Is the Zephyrus G14 (2024) upgradeable?
Limited upgradeability — SSD only. RAM is soldered and cannot be changed. Choose the 32GB model upfront if you plan intensive workloads.
Recommended Products
These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.
| Product | Why We Recommend It | Amazon UK |
|---|---|---|
| Corsair Vengeance DDR5 SO-DIMM 32GB (2×16GB) 5600MHz | Top-rated DDR5 kit for gaming & productivity | View on Amazon UK |
| Kingston Fury Impact DDR5 SO-DIMM 32GB (2×16GB) 5600MHz | Excellent DDR5 alternative with XMP support | View on Amazon UK |
| Crucial DDR5 SO-DIMM 16GB 5600MHz | Affordable single-stick DDR5 | View on Amazon UK |
| G.Skill Ripjaws DDR5 SO-DIMM 32GB 5600MHz | High performance DDR5 for enthusiasts | View on Amazon UK |
| Samsung 990 Pro 2TB NVMe M.2 2280 | Fastest consumer NVMe — ideal for gaming & editing | View on Amazon UK |
| WD Black SN850X 2TB NVMe | Excellent Gen4 speed with heatsink option | View on Amazon UK |
| Crucial P5 Plus 1TB NVMe | Great value Gen4 SSD | View on Amazon UK |
| Kingston NV2 1TB NVMe | Budget-friendly with solid reliability | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
