Dell XPS 16 (9640) vs Lenovo Yoga Slim 7i Aura Edition (15", 9)
42.4Performance38.8
38.4Display38.4
99.3Battery60
51.3Portability75.8
4 spec wins — Dell XPS 16 (9640)3 spec wins — Lenovo Yoga Slim 7i Aura Edition (15", 9)
InnoReviews verdict
Dell XPS 16 (9640) wins this laptop face-off, 55.5 to 50, pulling ahead mainly in battery (+39) and performance (+4). Lenovo Yoga Slim 7i Aura Edition (15", 9) still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Dell XPS 16 (9640)
- Stronger performance score: 42 vs 39
- Stronger battery score: 99 vs 60
- 100% higher charging: 130 W vs 65 W
- 42% higher capacity: 100 Wh vs 70 Wh
- 27% higher Geekbench 6 (multi): 13,656 vs 10,711
Reasons to pick the Lenovo Yoga Slim 7i Aura Edition (15", 9)
- Stronger portability score: 76 vs 51
- 28% lower weight: 1.53 kg vs 2.13 kg
- 26% lower thickness: 13.9 mm vs 18.7 mm
Display
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Screen size | 16.3 ″+7% | 15.3 ″ |
| Panel type | IPS (4K OLED touch optional) | IPS (multitouch) |
| Resolution | 1920x1200 | 2880x1800 |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 500 nits | 500 nits |
Performance
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Processor | Intel Core Ultra 7 155H | Intel Core Ultra 7 256V |
| Graphics | Intel Arc (RTX 4050/4060/4070 optional) | Intel Arc Graphics 140V (integrated) |
| RAM | 16 GB | 16 GB |
| RAM type | LPDDR5X-6400 (soldered) | LPDDR5X-8533 (soldered) |
| Storage | 512 GB | 512 GB |
| Storage type | PCIe 4.0 NVMe SSD | PCIe 4.0 NVMe SSD (M.2 2242) |
Benchmarks
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Geekbench 6 (single) | 2,418Bottom 22% | 2,531+5%Bottom 36% |
| Geekbench 6 (multi) | 13,656+27%Top 47% | 10,711Bottom 13% |
Battery
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Capacity | 100 Wh+42% | 70 Wh |
| Charging | 130 W+100% | 65 W |
Design
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Weight | 2.13 kg | 1.53 kg+28% |
| Thickness | 18.7 mm | 13.9 mm+26% |
| Material | CNC aluminum | Aluminum (top and bottom) |
Connectivity
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Ports | 3x Thunderbolt 4, microSD, 3.5mm | 2x Thunderbolt 4 (power delivery, DisplayPort 2.1), 1x USB-A 5Gbps, HDMI 2.1, 3.5mm combo jack |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| Webcam | 1080p + IR | 1080p + IR with e-shutter and ToF sensor |
| Biometrics | Fingerprint reader (power button), IR face (Windows Hello) | IR face recognition (Windows Hello), no fingerprint reader |
Software
| Spec | Dell XPS 16 (9640) | Lenovo Yoga Slim 7i Aura Edition (15", 9) |
|---|---|---|
| Operating system | Windows 11 Home | Windows 11 Home / Pro |
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