Lenovo ThinkPad L15 Gen 3 (21C7) vs. Lenovo ThinkBook 16p G4 IRH (21J8)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo ThinkPad L15 Gen 3 (21C7) and Lenovo ThinkBook 16p G4 IRH (21J8). 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 (21C7) Review

Advantages and disadvantages of Lenovo ThinkPad L15 Gen 3 (21C7) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

good battery life

adequate performance level

reliable security features

average display quality

limited graphics power

heavier than competitors

no thunderbolt support

Lenovo ThinkBook 16p G4 IRH (21J8) Review

Advantages and disadvantages of Lenovo ThinkBook 16p G4 IRH (21J8) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful amd processor

high-resolution display

solid build quality

good thermal management

decent battery life

heavier than competitors

limited port selection

higher price point

noisy under load

Laptop Comparison and Tests

Difference between Lenovo ThinkPad L15 Gen 3 (21C7) and Lenovo ThinkBook 16p G4 IRH (21J8)
86 % - Design
75 % - Display
75 % - Performance
85 % - Connectivity
75 % - Battery
83 % - Design
86 % - Display
85 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo ThinkPad L15 Gen 3 (21C7) vs. Lenovo ThinkBook 16p G4 IRH (21J8) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Product Type Notebook - 180-degree hinge design Notebook
Dimensions (WxDxH) 36.02 cm x 23.7 cm x 1.993 cm 35.46 cm x 25.5 cm x 1.99 cm
Weight 1.76 kg 2.2 kg
Case Material Polycarbonate ABS (bottom), polycarbonate ABS (top) Aluminium (top), aluminium (bottom)
Colour Thunder black Dual tone storm grey
DISPLAY Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Screen Size (Type) 15.6" - IPS 16" - IPS
Screen Resolution 1920 x 1080 (Full HD) 2560 x 1600 (WQXGA)
V-Sync Rate at Max Res. - 60 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness 250 cd/m² 400 cd/m²
Colour Gamut 45% NTSC 100% sRGB
Features Anti-glare Anti-glare, Delta E<2 calibration, Eyesafe technology, X-Rite Pantone factory color calibration, Dolby Vision, Smart sense panel, ±89° viewing angle
PROCESSOR Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
CPU AMD Ryzen 3 Pro 5475U / 2.7 GHz Intel Core i7 (13th Gen) 13700H / 2.4 GHz
Max Turbo Speed 4.1 GHz 5 GHz
Number of Cores Quad-Core 14-core
Cache L3 - 8 MB 24 MB
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
RAM 8 GB (1 x 8 GB) 16 GB (2 x 8 GB)
Max RAM Supported 64 GB 32 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 3200 MHz 5200 MHz
Rated Speed 3200 MHz 5200 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 2 2
Empty Slots 1 0
STORAGE Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) 512 GB SSD M.2 2280 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) AMD Radeon Graphics NVIDIA GeForce RTX 4060 / Intel Iris Xe Graphics
Max Monitors Supported 3 external monitor(s) 3 external monitor(s)
Video Memory - 8 GB GDDR6 SDRAM
Video System Features - NVIDIA Resizable BAR, Advanced Optimus, Dynamic Boost 2.0, Direct X 12 Ultimate, NVIDIA DLSS 3
Camera Yes - 1080p Yes - 1080p
Camera Features Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera
Sound Stereo speakers, dual array microphone Two tweeters, two woofers, dual array microphone
Codec Realtek ALC3287 Realtek ALC3306-CG
Compliant Standards High Definition Audio, Dolby Audio High Definition Audio, Dolby Atmos
Audio Features Input: Dolby Voice, far-field Output: harman/kardon stereo speakers, Smart Amplifier (AMP); Input: noise-cancellation technology
VR Ready - Yes
COMMUNICATIONS Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Wireless Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller AMD RZ616 - M.2 Card M.2 Card
Network Interface Gigabit Ethernet -
Ethernet Controller Realtek RTL8111EPV -
Compliant Standards DASH -
Features Wake-on-LAN (WOL), dual stream (2x2) Dual stream (2x2)
BATTERY Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Technology Lithium polymer Lithium polymer
Battery Capacity (Size) 57 Wh 80 Wh
Battery Life - Up to 18 hours
Battery Run Time - Local video (1080p) playback time (150 nits): up to 18 hours
AC ADAPTER Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 230 Watt
INPUT Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Type Keyboard, TrackPoint, UltraNav Keyboard, touchpad
Numeric Keypad Yes Yes
Keyboard Backlight Yes Yes
Features Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls Spill-resistant, multi-touch touchpad, buttonless touchpad, precision glass touchpad, smart sense keyboard backlight, SMB Service hot key
CONNECTIONS & EXPANSIONS Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Slots - 1 x M.2 (PCI Express 4.0 x4) (1 free)
Interfaces USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
HDMI (4K support)
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
Headphone/microphone combo jack
LAN
2 x USB 3.2 Gen 2
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI (8K support)
Headphone/microphone combo jack
Memory Card Reader Yes (microSD) Yes (SD Express Card)
SOFTWARE Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Operating System (OS) Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - English / Portuguese Windows 11 Pro - English
Software Included Glance by Mirametrix Microsoft Office (Trial)
MISCELLANEOUS Lenovo ThinkPad L15 Gen 3 (21C7) Lenovo ThinkBook 16p G4 IRH (21J8)
Included Accessories USB-C power adapter Power adapter
Integrated Options - Ambient light sensor
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type Kensington nano security slot Kensington nano security slot
Theft/Intrusion Protection Security lock slot (cable lock sold separately) 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, MIL-STD-810H tested, Rapid Charge Pro, self-healing BIOS, LA2-Q AI performance chip
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified RoHS, Energy-Related Products (ErP) Lot 6, FSC, Energy-Related Products (ErP) Lot 26, TUV Rheinland Low Blue Light (Hardware Solution), TCO Certified 9.0, Low-VOC
Carbon Footprint 236 kg carbon emissions 402 kg carbon emissions (EU)
Max Operating Temperature 35 °C 35 °C
Min Operating Temperature 5 °C 5 °C
Humidity Range Operating 8 - 95% 8 - 95%
Manufacturer Warranty Limited warranty - 1 year - pick-up and return Limited warranty - 1 year - pick-up and return
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