In depth comparison and review of Dell Latitude 5520 and Lenovo ThinkPad P51. Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Dell Latitude 5520 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
excellent battery life
good security features
comfortable keyboard
mediocre display quality
limited graphics power
heavier design
higher price point
Advantages and disadvantages of Lenovo ThinkPad P51 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
powerful processor performance
high-resolution display
good connectivity options
heavy and bulky
expensive price point
moderate battery life
noisy under load
DESIGN AND DIMENSIONS | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 35.78 cm x 23.33 cm x 1.987 cm | 37.74 cm x 25.23 cm x 2.94 cm |
Weight | 1.59 kg | 2.67 kg |
Case Material | - | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
Colour | Grey | Black |
DISPLAY | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Screen Size (Type) | 15.6" | 15.6" - IPS |
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LCD Backlight Technology | - | LED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
Pixel Density (ppi) | 141 | - |
V-Sync Rate at Max Res. | 60 Hz | - |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 250 cd/m² | 250 cd/m² |
Colour Gamut | 45% NTSC | - |
Features | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle, 25 ms response rate, 0.17925 mm pixel pitch | Anti-glare |
PROCESSOR | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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CPU | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz | Intel Xeon E3-1505MV6 / 3 GHz |
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Max Turbo Speed | 4.2 GHz | 4 GHz |
Number of Cores | Quad-Core | Quad-Core |
Cache | 8 MB | 8 MB |
64-bit Computing | - | Yes |
Chipset | - | Mobile Intel CM238 |
Platform Technology | - | Intel vPro Platform |
Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
MEMORY | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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RAM | 8 GB (1 x 8 GB) | 16 GB |
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Max RAM Supported | 64 GB | 64 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | 3200 MHz | 2400 MHz |
Rated Speed | 3200 MHz | - |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 4 |
Empty Slots | 1 | - |
STORAGE | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe - NVM Express (NVMe), Class 35 | 512 GB SSD |
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AUDIO & VIDEO | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
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Graphics Processor (GPU) | Intel Iris Xe Graphics | NVIDIA Quadro M2200 / Intel HD Graphics P630 |
Max Monitors Supported | 3 external monitor(s) | - |
Video Memory | - | 4 GB |
Camera | Yes - HD | Yes - 720p |
Resolution | 0.92 Megapixel | - |
Camera Features | Privacy shutter, RGB camera | - |
Image Sensor Type | CMOS | - |
Frame Rate | 30 frames per second | - |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3204 | Realtek ALC3268 |
Compliant Standards | High Definition Audio | High Definition Audio |
COMMUNICATIONS | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Wireless Controller | Intel Wi-Fi 6 AX 201 - M.2 2230 | - |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
BATTERY | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Technology | 4-cell Lithium Ion | Lithium Ion |
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Battery Capacity (Size) | 63 Wh | - |
AC ADAPTER | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 65 Watt, 5 / 9 / 15 / 20 V | 170 Watt |
INPUT | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | Yes | Yes |
Keyboard Backlight | Yes | - |
Features | - | Spill-resistant, multi-touch touchpad |
CONNECTIONS & EXPANSIONS | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Slots | 1 x M.2 2280 (1 free) 1 x M.2 2230 (0 free) |
1 x ExpressCard/34 (1 free) |
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Interfaces | HDMI 2 x USB4 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) USB 3.2 Gen 1 (PowerShare) USB 3.2 Gen 1 LAN Headphone/microphone combo jack |
USB 3.1 Gen 1/USB 3.0 (Always On) 3 x USB 3.1 Gen 1/USB 3.0 USB-C (supports Thunderbolt 3) Mini DisplayPort HDMI LAN Dock Headphone/microphone combo jack |
Memory Card Reader | Yes (microSD, microSDHC, microSDXC) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
SOFTWARE | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Operating System (OS) | Windows 10 Pro 64-bit Edition + Windows 11 Pro Licence - Multilingual User Interface (MUI) | Windows 10 Pro 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) |
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Software Included | Microsoft Office (Trial) | - |
MISCELLANEOUS | Dell Latitude 5520 | Lenovo ThinkPad P51 |
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Dockable | - | Yes |
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Included Accessories | USB-C power adapter | Power adapter |
Integrated Options | Accelerometer, ambient light sensor | - |
Security | Trusted Platform Module (TPM 2.0) Security Chip, smart card reader | Trusted Platform Module (TPM 2.0) Security Chip |
Security Slot Type | Noble Wedge security slot | Kensington security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
Features | ExpressCharge | Administrator password, hard drive password, power-on password, Intel Active Management Technology (iAMT), MIL-STD-810G tested |
Compliant Standards | FIPS 201 | ISO 9001, ISO 14001, ISO 27001 |
ENERGY STAR Certified | Yes | Yes |
Max Operating Temperature | 40 °C | - |
Min Operating Temperature | 0 °C | - |
Humidity Range Operating | 10 - 90% (non-condensing) | - |
Manufacturer Warranty | - | Limited warranty - 2 years - pick-up and return |