Main
Model
Price
Advantages
Processor / Chipset
CPU
Max Turbo Speed
Number of Cores
Cache
64-bit Computing
Features
Monitor
Diagonal Size
display
Widescreen Display
Image Aspect Ratio
Monitor Features
Type
Touchscreen
Display Resolution Abbreviation
RAM
Installed Size
Memory Speed
Memory Specification Compliance
Configuration Features
Technology
memory
Max Supported Size
Form Factor
Slots Qty
Empty Slots
Operating System / Software
OS Provided
Type
Audio & Video
Graphics Processor
Integrated Webcam
Sound
Audio Codec
Features
Hard Drive
Type
Capacity
Notebook Camera
Integrated Webcam
Miscellaneous
Color
Case Material
Integrated Options
Security
Features
Color Category
Included Accessories
System
Notebook Type
Dimensions & Weight
Width
Depth
Height
Physical Characteristics
Weight
Input
Type
Localization & Layout
Input Device
Backlight
battery
Run Time (Up To)
Capacity
Cells
Technology
Communications
Wireless Protocol
Wireless Controller
Connections & Expansion
Interfaces
Memory Card Reader
AC Adapter
Input
Output
Videos
Summary
The Dell XPS 15 9550 runs faster CPU than the Surface Book: Intel Core i7 (6th Gen) 6700HQ running at 2.6 GHz clock speed versus Intel Core i5 (6th Gen) 6300U running at 2.4 GHz clock speed. It is very significant specification of this laptop because fast CPU will let a computer to do multiple tasks at once.
The Dell XPS 15 9550 has a 1 TB SSD which is larger than 128 GB SSD of the Microsoft Surface Book.
The Microsoft Surface Book weighs 3.34 lbs which is 1.07 lbs lighter than the weight of the Dell XPS 15 9550.
Taking into account the above-mentioned differences the Dell XPS 15 9550 will be the best buy. Check the list of the best offers on Amazon.