The Dell G16 7640 is the latest 16″ premium gaming laptop featuring Intel Core i7-14650HX / i9-14900HX processors (14th-gen), RTX 4060/4070/4080 graphics, and a stunning 240Hz QHD+ display. It offers dual M.2 2230 SSD slots and a powerful 240W–330W charger. This guide covers complete compatibility details.
RAM Compatibility & Upgrade Guide
The Dell G16 7640 features two DDR5 SO-DIMM slots with full user upgrade support:
- Type: DDR5-5600 SO-DIMM
- Maximum capacity: Up to 32GB (2× 16GB)
- Stock configuration: 8GB or 16GB (typically 1× 8GB or 2× 8GB)
- Fully upgradeable: Yes — both modules are user-replaceable
Recommended DDR5 SO-DIMM kits for the G16 7640:
- Corsair Vengeance DDR5 SO-DIMM 32GB Kit (2×16GB) — View on Amazon UK
- Kingston Fury Beast DDR5 SO-DIMM 32GB Kit — View on Amazon UK
- G.Skill Flare X5 DDR5 SO-DIMM 32GB Kit — View on Amazon UK
- ADATA XPG Lancer DDR5 SO-DIMM 32GB Kit — View on Amazon UK
SSD & Storage Compatibility
KEY FEATURE: The Dell G16 7640 has dual M.2 2230 slots, allowing you to install up to 2TB of storage (1TB + 1TB). Both slots exclusively use the 2230 form factor — NOT the standard 2280 size. Do NOT purchase 2280 SSDs. This is the most common mistake when upgrading Dell gaming laptops.
Storage specifications:
- Form factor: M.2 2230 (22mm × 30mm) on BOTH slots — NOT 2280
- Interface: PCIe Gen 4 NVMe
- Number of slots: 2 (dual 2230 slots)
- Maximum total storage: 2TB (2× 1TB 2230 drives)
- Upgrade supported: Yes — fully replaceable
| Drive Model | Capacity | Speed | Amazon UK Link |
|---|---|---|---|
| WD SN770M NVMe | 512GB / 1TB | Up to 5,150 MB/s | View |
| Samsung PM991a | 512GB / 1TB | Up to 4,200 MB/s | View |
| Sabrent Rocket 2230 | 512GB / 1TB | Up to 4,800 MB/s | View |
| SK Hynix P41 Platinum | 512GB / 1TB | Up to 4,200 MB/s | View |
Storage upgrade tip: The G16 7640 supports dual 2230 drives for maximum flexibility. The WD SN770M is the fastest 2230 option available and fully compatible with both slots.
Charger & Power Compatibility
The Dell G16 7640 uses a 240W–330W barrel connector power supply, depending on configuration:
- Wattage: 240W–330W (higher wattage with RTX 4080)
- Connector type: 7.4mm barrel jack
- Voltage: 19.5V
- Compatible chargers: Dell 240W or 330W barrel adapters
Replacement chargers:
- Dell 330W Original Charger — View on Amazon UK
- Dell 240W Original Charger — View on Amazon UK
- Third-party 330W 19.5V barrel chargers — View on Amazon UK
Note: USB-C Power Delivery is NOT supported on the G16 7640. The barrel connector is required for full performance and proper charging under gaming loads.
Dock & Hub Compatibility
The Dell G16 7640 features USB-A and USB-C ports, but does NOT include Thunderbolt 4. Standard USB-C docks are compatible:
- USB-C docks: Compatible with all standard USB-C docking stations (up to 100W power delivery)
- USB-A hubs: All passive USB 3.2 hubs supported
- Multi-monitor support: USB-C docks with up to 2× 4K displays
Recommended docks for the G16 7640:
- Anker 10-in-1 USB-C Docking Station — View on Amazon UK
- Belkin USB-C Multiport Dock — View on Amazon UK
Full Specifications Table
| Component | Specification |
|---|---|
| Processor | Intel Core i7-14650HX / i9-14900HX (14th-gen) |
| RAM Slots | 2× DDR5-5600 SO-DIMM (32GB max) |
| Storage | 2× M.2 2230 PCIe Gen 4 NVMe (2TB max) |
| Display | 16″ QHD+ (2560×1600) IPS 240Hz |
| GPU | NVIDIA RTX 4060 / 4070 / 4080 Laptop |
| Charger | 240W–330W barrel connector (19.5V) |
| Ports | 2× USB-A 3.2, 1× USB-C 3.2, HDMI 2.1, 3.5mm jack |
| Thunderbolt 4 | Not supported |
| Weight | ~3.0 kg (6.6 lbs) |
| Upgradeability | ★★★★☆ (RAM full, dual 2230 SSD slots, high-power charger) |
Frequently Asked Questions
What is the main upgrade from the G16 7630 to the G16 7640?
The G16 7640 features Intel 14th-gen processors (i7-14650HX / i9-14900HX), faster DDR5-5600 RAM, a 240Hz display (vs 165Hz), RTX 4080 GPU option, and a more powerful 330W charger for improved performance and charging.
Can I install two 1TB 2230 SSDs for 2TB of storage?
Yes, absolutely. The G16 7640 has two M.2 2230 slots, so you can install two 1TB drives for a total of 2TB. Both slots are 2230 exclusive — no 2280 drives allowed.
Is the 330W charger required for the RTX 4080 version?
The 330W charger is recommended for RTX 4080 configurations for optimal charging speed during gaming. RTX 4060/4070 models can use the 240W charger, but the 330W charger is universally compatible.
What RAM speeds are supported on the G16 7640?
DDR5-5600 is the native speed. Faster DDR5 kits (e.g., DDR5-6000) will work but will operate at DDR5-5600 speeds due to BIOS limitations.
Does the G16 7640 have Thunderbolt 4?
No. The USB-C port is standard USB 3.2. Future Dell models may include Thunderbolt 4, but the G16 7640 does not support it.
For more Dell gaming laptop compatibility guides, visit our Dell Laptop Upgrades Hub.
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 DDR4 SO-DIMM 32GB (2×16GB) 3200MHz | Best overall DDR4 upgrade kit | View on Amazon UK |
| Kingston Fury Impact DDR4 SO-DIMM 32GB (2×16GB) 3200MHz | Reliable alternative with tight latency | View on 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 |
| WD SN770M 1TB M.2 2230 NVMe | Best 2230 SSD for Dell, Surface, Steam Deck | View on Amazon UK |
| Sabrent Rocket 2230 1TB | Fast 2230 alternative | View on Amazon UK |
| Samsung PM991a 1TB 2230 | OEM-grade 2230 at good prices | View on Amazon UK |
| Samsung 990 Pro 2TB NVMe M.2 2280 | Fastest consumer NVMe — ideal for gaming & editing | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
