ASUS Zenbook DUO (2024) UX8406 vs Dell XPS 16 (9640)
43.3Performance42.4
38.4Display38.4
66.7Battery99.3
64.1Portability51.3
3 spec wins — ASUS Zenbook DUO (2024) UX84065 spec wins — Dell XPS 16 (9640)
InnoReviews verdict
Dell XPS 16 (9640) wins this laptop face-off, 55.5 to 51, pulling ahead mainly in battery (+33). ASUS Zenbook DUO (2024) UX8406 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the ASUS Zenbook DUO (2024) UX8406
- Stronger portability score: 64 vs 51
- 100% higher storage: 1,024 GB vs 512 GB
- 23% lower weight: 1.65 kg vs 2.13 kg
- Lower launch price: $1,500 vs $1,899
Reasons to pick the Dell XPS 16 (9640)
- Stronger battery score: 99 vs 67
- 100% higher charging: 130 W vs 65 W
- 33% higher capacity: 100 Wh vs 75 Wh
- 16% higher Screen size: 16.3 ″ vs 14 ″
Display
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Screen size | 14 ″ | 16.3 ″+16% |
| Panel type | OLED (dual touchscreens) | IPS (4K OLED touch optional) |
| Resolution | 2880x1800 | 1920x1200 |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 500 nits | 500 nits |
Performance
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Processor | Intel Core Ultra 7 155H | Intel Core Ultra 7 155H |
| Graphics | Intel Arc Graphics | Intel Arc (RTX 4050/4060/4070 optional) |
| RAM | 16 GB | 16 GB |
| RAM type | LPDDR5X (soldered) | LPDDR5X-6400 (soldered) |
| Storage | 1,024 GB+100% | 512 GB |
| Storage type | PCIe 4.0 NVMe SSD (M.2 2280) | PCIe 4.0 NVMe SSD |
Benchmarks
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Geekbench 6 (single) | 2,475+2%Bottom 33% | 2,418Bottom 22% |
| Geekbench 6 (multi) | 12,867Bottom 44% | 13,656+6%Top 47% |
Battery
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Capacity | 75 Wh | 100 Wh+33% |
| Charging | 65 W | 130 W+100% |
Design
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Weight | 1.65 kg+23% | 2.13 kg |
| Thickness | 19.9 mm | 18.7 mm+6% |
| Material | Magnesium-aluminum alloy | CNC aluminum |
Connectivity
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Ports | 2x Thunderbolt 4, 1x USB 3.2 Gen 1 Type-A, HDMI 2.1, 3.5mm combo audio | 3x Thunderbolt 4, microSD, 3.5mm |
| Wi-Fi | Wi-Fi 6E (802.11ax) | Wi-Fi 7 |
| Bluetooth | 5.2 | 5.4 |
| Webcam | 1080p FHD with IR | 1080p + IR |
| Biometrics | IR face (Windows Hello) | Fingerprint reader (power button), IR face (Windows Hello) |
Software
| Spec | ASUS Zenbook DUO (2024) UX8406 | Dell XPS 16 (9640) |
|---|---|---|
| Operating system | Windows 11 | Windows 11 Home |
Related comparisons
ASUS Zenbook DUO (2024) UX8406vs Samsung Galaxy Book5 Pro 14VSASUS Zenbook DUO (2024) UX8406vs Samsung Galaxy Book5 Pro 360VSASUS Zenbook DUO (2024) UX8406vs ASUS Zenbook 14 OLED (UM3406)VSASUS Zenbook DUO (2024) UX8406vs HP OmniBook X 14VSDell XPS 16 (9640)vs ASUS TUF Gaming 16 (2026)VSDell XPS 16 (9640)vs Dell XPS 13 (9350)VSDell XPS 16 (9640)vs Dell XPS 16 (2026)VSDell XPS 16 (9640)vs Microsoft Surface Laptop 13.8-inch (8th Edition)VS