Dell XPS 15 9550 vs. Surface Book: Full specs comparison
We thoroughly analyzed technical specifications for Dell XPS 15 9550 and Surface Book models, including CPU, memory, storage, battery life, display quality, and other features.
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Dell XPS 15 9550 Pros
Reasons that Dell XPS 15 9550 is better than Surface Book.
Much faster CPU performance
Intel Core i7-6700HQ inside Dell XPS 15 9550 has a 94% better multi-core CPU performance score than the Intel Core i7-6600U inside Surface Book.
Geekbench 5 multi-core score
Dell XPS 15 9550 - Intel Core i7-6700HQ
3,073
Dell XPS 15 9550 - Intel Core i5-6300HQ
2,409
Dell XPS 15 9550 - Intel Core i3-6100H
1,597
Surface Book - Intel Core i7-6600U
1,584
Surface Book - Intel Core i5-6300U
1,319
Supports larger memory
Dell XPS 15 9550 supports a larger memory capacity than the Surface Book. It supports up to 32GB versus 16GB of system memory on the Surface Book.
Max system memory size
Dell XPS 15 9550
32 GB
Surface Book
16 GB
Supports faster memory
Dell XPS 15 9550 supports a faster memory speed than the Surface Book. It supports up to 2133MHz versus 1866MHz of system memory on the Surface Book.
Memory type and speed
Dell XPS 15 9550 - DDR4
2,133 MHz
Surface Book - LPDDR3
1,866 MHz
15% larger display
Dell XPS 15 9550 has a 15.6-inch screen size 15% larger than the 13.5-inch Surface Book.
Display size
Dell XPS 15 9550
15.6-inch
Surface Book
13.5-inch
Surface Book Pros
Reasons that Surface Book is better than Dell XPS 15 9550.
About 59% lighter
Surface Book weighed 1.6 pounds, 59% lighter than the 3.9 pounds Dell XPS 15 9550.
| Weight | Dell XPS 15 9550 | Surface Book |
|---|---|---|
| Pound | 3.9 lbs. | 1.6 lbs. |
| Kilogram | 1.77 kg | 0.73 kg |
Prices
Here are the latest price updates and offers for both devices.
Availability | Dell XPS 15 9550 | Surface Book |
| Released | 2015 | 2015 |
| Release Date | - |
|
| Pricing | - | Starting at 1,499$ |
| Generations |
Exterior | Dell XPS 15 9550 | Surface Book |
| Dimensions | 14.06 x 9.27 x 0.45 - 0.66 in (357 x 235 x 11 - 17 mm) Width: 14.06” (357 mm) Depth: 9.27” (235 mm) Height: 0.45 - 0.66” (11 - 17 mm) | 12.3” x 9.14” x 0.51”-0.90” (312 mm x 232 mm x 13 mm-23 mm) |
| Weight |
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| Colors |
| Platinum |
| Keyboard and Trackpad |
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Display | Dell XPS 15 9550 | Surface Book |
| Size | 15.6 Inches | 13.5 Inches |
| Info |
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Ports | Dell XPS 15 9550 | Surface Book |
 Left (5)
Right (4)
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Internal Specs | Dell XPS 15 9550 | Surface Book |
| Processor |
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| Integrated Graphics |
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| Memory |
| 8GB 16GB 1866 MHz LPDDR3 RAM |
| Discrete Graphics |
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| Storage |
| 128GB 256 GB 512 GB 1 TB NVMe PCIe 3.0 SSD |
Connectivity | Dell XPS 15 9550 | Surface Book |
| Wi-Fi |
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| Bluetooth |
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Battery | Dell XPS 15 9550 | Surface Book |
| Size |
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| Battery Life |
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| Power Supply | 130 W power adapter Power rated at 19.50VDC/6.67A. |
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Software | Dell XPS 15 9550 | Surface Book |
| OS | Windows 10 Home Windows 10 Pro | Windows 10 Pro |
| Built-in Apps |
| Microsoft Office 365 30-days trial |
Camera & Audio | Dell XPS 15 9550 | Surface Book |
| Camera |
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| Audio |
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Misc | Dell XPS 15 9550 | Surface Book |
| Inking | - | Supports Surface Pen 1024 levels of pressure Magnetic storage |
| Sensors | - |
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| Security |
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| In the box | - |
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| Warranty | - | One-year limited hardware warranty |
| More | - | Supports Surface Dial Supports off-screen interaction only. |
Key Features | Dell XPS 15 9550 | Surface Book |
| At Glance | | |
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