Dell Precision 5520 vs. Dell Precision 7720

Laptop Comparison, Reviews and Tests

Detailed comparison and review of Dell Precision 5520 and Dell Precision 7720. With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.

Laptop Comparison and Tests

Difference between Dell Precision 5520 and Dell Precision 7720

Laptop Specifications Comparison

Dell Precision 5520 vs. Dell Precision 7720 Comparison Chart
DESIGN AND DIMENSIONS Dell Precision 5520 Dell Precision 7720
Product Type Mobile workstation Mobile workstation
Dimensions (WxDxH) 35.7 cm x 23.5 cm x 1.7 cm 41.67 cm x 28.12 cm x 3.53 cm
Weight 2 kg 3.4 kg
Colour Silver Black
DISPLAY Dell Precision 5520 Dell Precision 7720
Screen Size (Type) 15.6" 17.3" - IPS
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1080 (Full HD)
Widescreen Yes Yes
Image Brightness 400 cd/m² 300 cd/m²
Features UltraSharp, anti-glare, Wide Viewing Angle UltraSharp, anti-glare, Corning Gorilla glass 4
PROCESSOR Dell Precision 5520 Dell Precision 7720
CPU Intel Core i7 (6th Gen) 6820HQ / 2.7 GHz Intel Core i7 (7th Gen) 7700HQ / 2.8 GHz
Max Turbo Speed 3.6 GHz 3.8 GHz
Number of Cores Quad-Core Quad-Core
Cache 8 MB 6 MB
64-bit Computing Yes Yes
Chipset Mobile Intel CM236 Express Mobile Intel CM238
Platform Technology Intel vPro Platform -
Features Intel Turbo Boost Technology 2.0 Intel Turbo Boost Technology 2.0
MEMORY Dell Precision 5520 Dell Precision 7720
RAM 8 GB (1 x 8 GB) 16 GB (2 x 8 GB)
Max RAM Supported 32 GB 64 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2133 MHz 2400 MHz
Rated Speed - 2400 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 2 4
Empty Slots 1 2
STORAGE Dell Precision 5520 Dell Precision 7720
Main Storage Size (HDD/SSD) 256 GB SSD M.2 PCIe 256 GB SSD M.2 PCIe - NVM Express (NVMe)
AUDIO & VIDEO Dell Precision 5520 Dell Precision 7720
Graphics Processor (GPU) NVIDIA Quadro M1200 NVIDIA Quadro M1200
Video Memory 4 GB GDDR5 SDRAM 4 GB GDDR5 SDRAM
Camera Yes Yes - 1280 x 720
Resolution 0.92 Megapixel -
Camera Features - 720p HD movie recording
Image Sensor Type - CMOS
Video Resolutions 1280 x 720 1280 x 720
Frame Rate 30 frames per second -
Sound Stereo speakers, microphone Stereo speakers, microphone
Compliant Standards High Definition Audio High Definition Audio
COMMUNICATIONS Dell Precision 5520 Dell Precision 7720
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 802.11a/b/g/n/ac, Bluetooth 4.2
Wireless Controller Intel Dual Band Wireless-AC 8265 Intel Dual Band Wireless-AC 8265
Network Interface Gigabit Ethernet Gigabit Ethernet
Features Miracast -
BATTERY Dell Precision 5520 Dell Precision 7720
Technology 3-cell lithium polymer 6-cell Lithium Ion
Battery Capacity (Size) 56 Wh -
AC ADAPTER Dell Precision 5520 Dell Precision 7720
Input AC 120/230 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 130 Watt, 19.5 V, 6.67 A 240 Watt, 19.5 V, 12.31 A
INPUT Dell Precision 5520 Dell Precision 7720
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad - Yes
Keyboard Backlight Yes Yes
Features - Multi-gesture touch pad
CONNECTIONS & EXPANSIONS Dell Precision 5520 Dell Precision 7720
Interfaces USB-C (supports Thunderbolt 3)
LAN (on supplied cable)
2 x USB 3.0 (PowerShare)
Headphone/microphone combo jack
HDMI
Mini DisplayPort
LAN
4 x USB 3.1 Gen 1 (PowerShare)
Headphone/microphone combo jack
HDMI
Dock
USB-C (supports Thunderbolt)
Memory Card Reader Yes (SD Card) Yes (SD Card)
SOFTWARE Dell Precision 5520 Dell Precision 7720
Operating System (OS) Microsoft Windows 7 Professional 64-bit Edition + Windows 10 Pro 64-bit Licence - Multilingual User Interface (MUI) Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI)
Software Included Microsoft Office (Trial), McAfee (30 days trial) Microsoft Office (Trial), McAfee (30 days trial)
MISCELLANEOUS Dell Precision 5520 Dell Precision 7720
Dockable - Yes
Included Accessories Power adapter Power adapter
Security Trusted Platform Module (TPM) Security Chip Smart card reader
Theft/Intrusion Protection - Security lock slot (cable lock sold separately)
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C 0 °C
Humidity Range Operating 10 - 90% (non-condensing) 10 - 90% (non-condensing)
Manufacturer Warranty Limited warranty - 1 year - response time: next business day Limited warranty - 3 years - response time: next business day
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