In depth comparison and review of Dell G15 (5520) and Lenovo ThinkPad L14 Gen 3 (21C5). 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 G15 (5520) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful gaming performance
efficient thermal management
solid build quality
affordable price point
good audio quality
heavy and bulky
average battery life
dim display brightness
limited port selection
Advantages and disadvantages of Lenovo ThinkPad L14 Gen 3 (21C5) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
excellent keyboard comfort
good battery life
versatile connectivity options
mediocre display resolution
heavier design
limited graphics power
higher price point
DESIGN AND DIMENSIONS | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 35.726 cm x 27.211 cm x 2.533 cm | 32.54 cm x 21.7 cm x 1.983 cm |
Weight | 2.81 kg | 1.39 kg |
Case Material | - | Polycarbonate ABS (bottom), polycarbonate ABS (top) |
Colour | Dark shadow grey | Thunder black |
DISPLAY | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Screen Size (Type) | 15.6" | 14" - IPS |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
Pixel Density (ppi) | 141 | - |
V-Sync Rate at Max Res. | 165 Hz | - |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 300 cd/m² | 250 cd/m² |
Colour Gamut | 100% sRGB | 45% NTSC |
Features | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle, Narrow Border Display, 0.17925 mm pixel pitch, 13 ms response rate | Anti-glare, 170° viewing angle |
PROCESSOR | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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CPU | Intel Core i7 (12th Gen) 12700H | AMD Ryzen 5 Pro 5675U / 2.3 GHz |
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Max Turbo Speed | 4.7 GHz | 4.3 GHz |
Number of Cores | 14-core | 6-core |
Cache | 24 MB | L3 - 16 MB |
Features | Intel Smart Cache, Intel Deep Learning Boost (DL Boost) | Integrated memory controller |
MEMORY | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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RAM | 16 GB (2 x 8 GB) | 8 GB (1 x 8 GB) |
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Max RAM Supported | 32 GB | 64 GB |
RAM Type | DDR5 SDRAM | DDR4 SDRAM |
Speed | 4800 MHz | 3200 MHz |
Rated Speed | 4800 MHz | 3200 MHz |
Form Factor | SO-DIMM 262-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 2 |
Empty Slots | 0 | 1 |
STORAGE | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Main Storage Size (HDD/SSD) | 512 GB SSD M.2 PCIe 4.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
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AUDIO & VIDEO | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Graphics Processor (GPU) | NVIDIA GeForce RTX 3060 | AMD Radeon Graphics |
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Max Monitors Supported | - | 3 external monitor(s) |
Video Memory | 6 GB GDDR6 SDRAM | - |
Gaming | Yes | - |
Camera | Yes - HD | Yes - 1080p |
Resolution | 0.92 Megapixel | - |
Camera Features | RGB camera | Privacy shutter, IR camera, Windows Hello, fixed focus |
Image Sensor Type | CMOS | - |
Video Resolutions | 1280 x 720 | - |
Frame Rate | 30 frames per second | - |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3254 | Realtek ALC3287 |
Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
COMMUNICATIONS | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
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Wireless Controller | M.2 2230 | AMD RZ616 - M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | Killer Ethernet E2600 | Realtek RTL8111EPV |
Compliant Standards | - | DASH |
Features | Dual stream (2x2) | Wake-on-LAN (WOL), dual stream (2x2) |
WWAN |
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Generation | - | 4G upgradable |
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BATTERY | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Technology | 6-cell Lithium Ion | Lithium polymer |
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Battery Capacity (Size) | 86 Wh | 57 Wh |
Battery Life | Up to 9 hour(s) | - |
AC ADAPTER | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 19.5 V | 65 Watt |
INPUT | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | Yes | - |
Keyboard Backlight | Yes | Yes |
Features | - | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
CONNECTIONS & EXPANSIONS | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Interfaces | HDMI 3 x USB 3.2 Gen 1 Thunderbolt 4 LAN Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) HDMI USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack LAN |
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Memory Card Reader | - | Yes (microSD) |
SOFTWARE | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Operating System (OS) | Windows 11 Home | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - Dutch / English / French / German / Italian |
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Software Included | Microsoft Office 2013 (Trial) | - |
MISCELLANEOUS | Dell G15 (5520) | Lenovo ThinkPad L14 Gen 3 (21C5) |
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Included Accessories | Power adapter | USB-C power adapter |
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Security | - | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
Security Slot Type | - | Kensington nano security slot |
Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
Features | - | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password |
Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified |
Max Operating Temperature | 35 °C | 35 °C |
Min Operating Temperature | 0 °C | 5 °C |
Humidity Range Operating | 10 - 90% (non-condensing) | 8 - 95% |
Manufacturer Warranty | Limited warranty - 1 year | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |