Dell Inspiron 15 5510 vs. Lenovo ThinkPad T14 Gen 4 (21K3)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Dell Inspiron 15 5510 and Lenovo ThinkPad T14 Gen 4 (21K3). 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.

Dell Inspiron 15 5510 Review

Advantages and disadvantages of Dell Inspiron 15 5510 based on its technical characteristics, features, user experience, expert reviews and price level.

efficient 11th gen processor

sleek aluminum design

comfortable backlit keyboard

fast SSD storage

good thermal management

average battery life

no dedicated GPU

limited port selection

dim display brightness

Lenovo ThinkPad T14 Gen 4 (21K3) Review

Advantages and disadvantages of Lenovo ThinkPad T14 Gen 4 (21K3) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

powerful processor options

good battery life

impressive security features

heavier than competitors

average display brightness

limited color options

pricey base model

Laptop Comparison and Tests

Difference between Dell Inspiron 15 5510 and Lenovo ThinkPad T14 Gen 4 (21K3)
85 % - Design
72 % - Display
75 % - Performance
85 % - Connectivity
75 % - Battery
83 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Dell Inspiron 15 5510 vs. Lenovo ThinkPad T14 Gen 4 (21K3) Comparison Chart
DESIGN AND DIMENSIONS Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 35.606 cm x 22.89 cm x 1.799 cm 31.77 cm x 22.69 cm x 1.79 cm
Weight 1.75 kg 1.39 kg
Case Material - Carbon fibre hybrid (top), polyphenylene sulfide (bottom)
Colour Platinum silver Thunder black
DISPLAY Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Screen Size (Type) 15.6" 14" - IPS
LCD Backlight Technology LED backlight -
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1200 (WUXGA)
Pixel Density (ppi) 141 -
V-Sync Rate at Max Res. 60 Hz -
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness - 300 cd/m²
Colour Gamut - 45% NTSC
Features Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle, Narrow Border Display, 35 ms response rate, 0.179 mm pixel pitch Anti-glare
PROCESSOR Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
CPU Intel Core i5 (11th Gen) 11300H AMD Ryzen 5 Pro 7540U / 3.2 GHz
Max Turbo Speed 4.4 GHz 4.9 GHz
Number of Cores Quad-Core 6-core
Cache 8 MB L3 - 16 MB
Features Intel Turbo Boost Technology 2.0, Intel Smart Cache, Intel Deep Learning Boost (DL Boost) Integrated memory controller
MEMORY Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
RAM 8 GB (2 x 4 GB) 16 GB (provided memory is soldered)
Max RAM Supported 32 GB -
RAM Type DDR4 SDRAM LPDDR5X SDRAM
Speed 3200 MHz 6400 MHz
Rated Speed 3200 MHz 6400 MHz
Form Factor SO-DIMM 260-pin -
Slots Qty 2 -
Empty Slots 0 -
STORAGE Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe)
AUDIO & VIDEO Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Graphics Processor (GPU) Intel Iris Xe Graphics AMD Radeon 740M
Memory Allocation Technology Shared Video Memory (UMA) -
Max Monitors Supported - 3 external monitor(s)
Camera Yes - HD Yes - 1080p
Resolution 0.92 Megapixel -
Camera Features Privacy shutter, 74.9 degrees, RGB camera Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera, Ultrasonic Human Presence Detection
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 ALC3287
Compliant Standards High Definition Audio High Definition Audio, Dolby Audio
Audio Features - Input: Dolby Voice, 360° far-field
COMMUNICATIONS Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.1 Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller M.2 2230 MediaTek RZ616
Network Interface - Gigabit Ethernet
Ethernet Controller - Realtek RTL8111EPV
Compliant Standards - DASH
Features Dual stream (2x2) Wake-on-LAN (WOL), dual stream (2x2)
WWAN
Generation - 4G upgradable
BATTERY Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Technology 4-cell lithium polymer Lithium polymer
Battery Capacity (Size) 54 Wh 52.5 Wh
AC ADAPTER Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt, 19.5 V, 3.34 A 65 Watt
INPUT Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Type Keyboard, touchpad Keyboard, TrackPoint, UltraNav
Numeric Keypad Yes -
Keyboard Backlight Yes Yes
Features - Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls
CONNECTIONS & EXPANSIONS Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Interfaces USB-C 3.2 Gen 2x2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery)
2 x USB 3.2 Gen 1
HDMI
Headphone/microphone combo jack
USB 3.2 Gen 1 (Always On)
USB 3.2 Gen 1
USB-C 3.2 Gen 2 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0)
USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0)
HDMI (4K support)
LAN
Headphone/microphone combo jack
Memory Card Reader Yes (SD Card, SDHC Card, SDXC Card) -
SOFTWARE Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Operating System (OS) Windows 10 Home 64-bit Edition Windows 11 Pro - English
Software Included McAfee LiveSafe (12 months subscription), Microsoft Office (30 days trial, excludes office licence) Glance by Mirametrix
MISCELLANEOUS Dell Inspiron 15 5510 Lenovo ThinkPad T14 Gen 4 (21K3)
Included Accessories Power adapter USB-C power adapter
Security - Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, 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, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication
Compliant Standards - RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0
Max Operating Temperature 40 °C 35 °C
Min Operating Temperature 0 °C 5 °C
Humidity Range Operating 50 - 90% (non-condensing) 8 - 95%
Manufacturer Warranty Limited warranty - 1 year Base warranty - 3 years - pick-up and return
Base warranty - battery - 1 year
Extended warranty - 3 years - on-site
Extended warranty - 1 year - on-site - response time: next business day
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