Lenovo ThinkPad L15 Gen 3 (21C3) vs. Lenovo IdeaPad 3 15ITL05 (81X8)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo ThinkPad L15 Gen 3 (21C3) and Lenovo IdeaPad 3 15ITL05 (81X8). 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.

Lenovo ThinkPad L15 Gen 3 (21C3) Review

Advantages and disadvantages of Lenovo ThinkPad L15 Gen 3 (21C3) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

good battery life

reliable performance

decent connectivity options

mediocre display quality

heavier design

limited graphics performance

higher price point

Lenovo IdeaPad 3 15ITL05 (81X8) Review

Advantages and disadvantages of Lenovo IdeaPad 3 15ITL05 (81X8) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

lightweight design

solid build quality

decent battery life

adequate performance

average display quality

limited graphics power

no backlit keyboard

fewer USB-C ports

Laptop Comparison and Tests

Difference between Lenovo ThinkPad L15 Gen 3 (21C3) and Lenovo IdeaPad 3 15ITL05 (81X8)
85 % - Design
72 % - Display
75 % - Performance
85 % - Connectivity
75 % - Battery
69 % - Design
72 % - Display
72 % - Performance
75 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo ThinkPad L15 Gen 3 (21C3) vs. Lenovo IdeaPad 3 15ITL05 (81X8) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Product Type Notebook - 180-degree hinge design Notebook
Dimensions (WxDxH) 36.02 cm x 23.7 cm x 1.993 cm 36.22 cm x 25.34 cm x 1.99 cm
Weight 1.76 kg 1.7 kg
Case Material Polycarbonate ABS (bottom), polycarbonate ABS (top) Polycarbonate ABS (bottom), polycarbonate ABS (top)
Colour Thunder black Platinum grey | Abyss blue
DISPLAY Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Screen Size (Type) 15.6" - IPS 15.6" - TN
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1080 (Full HD)
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 250 cd/m² 220 cd/m²
Colour Gamut 45% NTSC 45% NTSC
Features Anti-glare, 170° viewing angle Anti-glare
PROCESSOR Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
CPU Intel Core i5 (12th Gen) 1235U / 1.3 GHz Intel Core i3 (11th Gen) 1115G4 / 3 GHz
Max Turbo Speed 4.4 GHz 4.1 GHz
Number of Cores 10-core Dual-Core
Cache 12 MB 6 MB
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
RAM 8 GB (2 x 4 GB) 4 GB (provided memory is soldered)
Max RAM Supported 64 GB 12 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 3200 MHz 2666 MHz
Rated Speed 3200 MHz 2666 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 2 1
Empty Slots 0 1
STORAGE Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) 128 GB SSD M.2 2242 PCIe 3.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Graphics Processor (GPU) Intel Iris Xe Graphics Intel UHD Graphics
Max Monitors Supported 3 external monitor(s) 1 external monitor(s)
Video System Features Functions as Intel UHD graphics (for single-channel memory) -
Camera Yes - 1080p Yes
Resolution - 0.3 Megapixel
Camera Features Privacy shutter, IR camera, Windows Hello, fixed focus Privacy shutter, fixed focus
Sound Stereo speakers, dual array microphone Stereo speakers, dual array microphone
Codec Realtek ALC3287 -
Compliant Standards High Definition Audio, Dolby Audio, Dolby Voice High Definition Audio, Dolby Audio
COMMUNICATIONS Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.2 Bluetooth 5.0, 802.11a/b/g/n/ac/ax
Wireless Controller Intel Wi-Fi 6 AX 201 - M.2 Card M.2 Card
Network Interface Gigabit Ethernet -
Features Wake-on-LAN (WOL), dual stream (2x2) Dual stream (2x2)
WWAN
Generation 4G upgradable -
BATTERY Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Technology Lithium polymer Lithium polymer
Battery Capacity (Size) 57 Wh 35 Wh
Battery Life - Up to 5.5 hours
AC ADAPTER Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Type Keyboard, TrackPoint, UltraNav Keyboard, touchpad
Numeric Keypad Yes Yes
Keyboard Backlight Yes -
Features Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls Multi-touch touchpad, buttonless touchpad, precision touchpad
CONNECTIONS & EXPANSIONS Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Interfaces USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
Headphone/microphone combo jack
HDMI
LAN
2 x USB 3.2 Gen 1
USB 2.0
HDMI
Headphone/microphone combo jack
Memory Card Reader Yes (microSD) 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Operating System (OS) Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - English Windows 11 Home in S mode - English
Software Included - Microsoft Office (Trial)
MISCELLANEOUS Lenovo ThinkPad L15 Gen 3 (21C3) Lenovo IdeaPad 3 15ITL05 (81X8)
Included Accessories USB-C power adapter Wall mount power adapter
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader Firmware Trusted Platform Module (TPM 2.0) Security Chip
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 Administrator password, hard drive password, power-on password
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified RoHS, Energy-Related Products (ErP) Lot 3
ENERGY STAR Certified Yes -
EPEAT Compliant EPEAT Gold -
Max Operating Temperature 35 °C 35 °C
Min Operating Temperature 5 °C 5 °C
Humidity Range Operating 8 - 95% 8 - 95%
Manufacturer Warranty Base warranty - 1 year - pick-up and return
Extended warranty - 1 year - on-site
Limited warranty - 1 year - pick-up and return
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