Dell XPS 16 9640 (2024) Specifications
The Dell XPS 16 9640 (2024) is an ultraportable laptop designed for productivity and portability. This guide covers RAM, SSD, charger compatibility, and upgrade paths for this model. For a comprehensive overview of all Dell upgradeable models, visit the Dell Laptop Upgrades hub.
| Component | Specification |
|---|---|
| Processor | Intel Core Ultra 7 165H / Core Ultra 9 185H |
| RAM | LPDDR5x-6400 / LPDDR5x-7467, 0 Soldered slots (soldered) |
| Max RAM | 64GB |
| Storage | M.2 2280 PCIe Gen4 NVMe, 1 slot |
| Charger | 140W USB-C Power Delivery |
| Ports | 2× Thunderbolt 4, 2× USB 3.1, HDMI 2.0, microSD |
| Display | 16.0" FHD / OLED |
| Weight | 2.5 kg (5.51 lbs) |
Memory Upgrade Path
The XPS 16 9640 has soldered LPDDR5x RAM which cannot be upgraded after purchase. Select the maximum RAM configuration when buying.
Important: Since the RAM is not user-replaceable, we recommend opting for at least 16GB at purchase to ensure adequate performance for years to come.
Storage Expansion (M.2 NVMe)
The XPS 16 9640 uses a standard M.2 2280 NVMe SSD with a PCIe Gen4 NVMe interface. The single M.2 slot supports drives up to 2TB.
Recommended M.2 2280 SSDs:
- Samsung 990 Pro NVMe 2280 — Flagship NVMe SSD with exceptional speeds.
- WD Black SN850X 2280 — High-performance NVMe with excellent sustained writes.
- Crucial P5 Plus NVMe 2280 — Excellent value NVMe with strong real-world performance.
Power Delivery & Charging
The XPS 16 9640 uses a 140W USB-C Power Delivery charger. This is compatible with any USB-C PD charger of equal or higher wattage from brands like Anker, Ugreen, or the original Dell charger.
Compatible USB-C PD Chargers:
- Anker 140W USB-C PD Charger — Compact GaN charger with multiple ports. Works with this and other USB-C devices.
- Ugreen USB-C PD Charger (140W+) — Affordable universal charger with fast charging and solid reviews.
- INIU USB-C PD Fast Charger — Budget option with reliable performance and portability.
Port & Docking Capabilities
Connectivity: 2× Thunderbolt 4, 2× USB 3.1, HDMI 2.0, microSD
The Thunderbolt 4 ports provide fast external storage and high-bandwidth peripherals. Consider a Thunderbolt dock like the CalDigit TS4 or Belkin Thunderbolt 4 Dock Pro for desktop expansion with multiple displays and storage.
Upgrade Difficulty & Tools Required
The XPS 16 9640 has a difficulty rating of 1/5 for upgrades (5 = easiest). The upgrade process is very difficult.
Tools needed:
- Phillips screwdriver (M2.5 or similar)
- Plastic spudger or pry tool (for bottom panel clips)
- ESD wrist strap (optional but recommended)
We recommend backing up your data and consulting the official service manual before opening the chassis.
Frequently Asked Questions
Can I upgrade the RAM in the Dell XPS 16 9640?
The XPS 16 9640 has soldered RAM which cannot be upgraded after purchase. Choose the maximum RAM when buying.
What is the maximum RAM for the XPS 16 9640?
The XPS 16 9640 supports up to 64GB of LPDDR5x-6400 / LPDDR5x-7467 memory.
Can I add a second SSD to the XPS 16 9640?
The XPS 16 9640 has 1 M.2 slot. You can replace the existing SSD with a larger drive.
Can I use any USB-C charger with the XPS 16 9640?
Yes, any USB-C Power Delivery charger rated for 140W or higher will work.
Is the XPS 16 9640 easy to upgrade?
The XPS 16 9640 has a difficulty rating of 1/5. Consider professional assistance for upgrades.
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 | Premium DDR5 laptop memory with excellent compatibility. | View on Amazon UK |
| Kingston Fury Impact DDR5 SO-DIMM | High-performance DDR5 with solid heat dissipation. | View on Amazon UK |
| Crucial DDR5 SO-DIMM | Budget-friendly DDR5 with proven stability. | View on Amazon UK |
| Samsung 990 Pro NVMe 2280 | Flagship NVMe SSD with exceptional speeds. | View on Amazon UK |
| WD Black SN850X 2280 | High-performance NVMe with excellent sustained writes. | View on Amazon UK |
| Crucial P5 Plus NVMe 2280 | Excellent value NVMe with strong real-world performance. | View on Amazon UK |
| Anker 140W USB-C PD Charger | Compact GaN charger. Universal solution for USB-C laptops. | View on Amazon UK |
| Ugreen 140W USB-C PD Charger | Affordable universal USB-C charger with fast charging. | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
Related Dell Upgrade Guides
- Dell Battery Replacement: Latitude, XPS & Inspiron Step-by-Step
- Best RAM for Dell Laptops in 2026
- Dell Precision T7920 RAM & SSD Upgrade Guide (2018)
- Dell Precision T7875 RAM & SSD Upgrade Guide (2024)
- Dell Precision T5860 RAM & SSD Upgrade Guide (2024)
- Dell Upgrade Guide
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