Lenovo IdeaPad C340-14IWL (81N4) vs. Lenovo ThinkBook 14s Yoga G3 IRU (21JG)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo IdeaPad C340-14IWL (81N4) and Lenovo ThinkBook 14s Yoga G3 IRU (21JG). 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 IdeaPad C340-14IWL (81N4) Review

Advantages and disadvantages of Lenovo IdeaPad C340-14IWL (81N4) based on its technical characteristics, features, user experience, expert reviews and price level.

flexible 2-in-1 design

responsive touchscreen display

lightweight and portable

solid build quality

affordable price point

average battery life

moderate processor speed

limited graphics performance

minimal port variety

Lenovo ThinkBook 14s Yoga G3 IRU (21JG) Review

Advantages and disadvantages of Lenovo ThinkBook 14s Yoga G3 IRU (21JG) based on its technical characteristics, features, user experience, expert reviews and price level.

versatile 2-in-1 design

sharp full-hd display

solid build quality

responsive touch screen

good keyboard comfort

average battery life

limited port selection

moderate graphics performance

heavier than competitors

Laptop Comparison and Tests

Difference between Lenovo IdeaPad C340-14IWL (81N4) and Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
86 % - Design
72 % - Display
72 % - Performance
75 % - Connectivity
72 % - Battery
86 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Lenovo IdeaPad C340-14IWL (81N4) vs. Lenovo ThinkBook 14s Yoga G3 IRU (21JG) Comparison Chart
DESIGN AND DIMENSIONS Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Product Type Notebook - flip design Notebook - flip design
Dimensions (WxDxH) 32.8 cm x 22.9 cm x 1.79 cm 32 cm x 21.6 cm x 1.69 cm
Weight 1.65 kg 1.5 kg
Case Material Polycarbonate, polycarbonate ABS, glass-fibre Aluminium (top), aluminium (bottom)
Colour Platinum | Abyss blue Dual tone mineral grey
DISPLAY Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Screen Size (Type) 14" - TN 14" - IPS
Touchscreen Yes (10-point multi-touch) Yes (10-point multi-touch)
LCD Backlight Technology 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 220 cd/m² 300 cd/m²
Colour Gamut - 100% sRGB
Features Glossy Glossy, Corning Gorilla glass, anti-glare, Direct Bonding technology, anti-fingerprint, capacitive touch screen, 170° viewing angle, one glass metal mesh (OGM), Dolby Vision
PROCESSOR Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
CPU Intel Core i3 (8th Gen) 8145U / 2.1 GHz Intel Core i5 (13th Gen) 1335U / 1.3 GHz
Max Turbo Speed 3.9 GHz 4.6 GHz
Number of Cores Dual-Core 10-core
Cache 4 MB 12 MB
64-bit Computing Yes -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
RAM 8 GB (1 x 4 GB + 4 GB (soldered)) 8 GB (provided memory is soldered)
Max RAM Supported 20 GB 16 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2400 MHz 3200 MHz
Rated Speed 2400 MHz 3200 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 1 1
Empty Slots 0 1
STORAGE Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Main Storage Size (HDD/SSD) 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Graphics Processor (GPU) Intel UHD Graphics Intel Iris Xe Graphics
Max Monitors Supported - 3 external monitor(s)
Video System Features - Functions as Intel UHD graphics (for single-channel memory)
Camera Yes - 720p Yes - 1080p
Resolution 1 Megapixel -
Camera Features Privacy shutter 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 High Definition Audio, Dolby Atmos
Audio Features - Input: noise-cancellation technology
COMMUNICATIONS Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 802.11a/b/g/n/ac/ax, Bluetooth 5.1
Wireless Controller M.2 Card M.2 Card
Features Single stream (1x1) Dual stream (2x2)
BATTERY Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Technology Lithium Ion Lithium polymer
Battery Capacity (Size) 45 Wh 60 Wh
Battery Life Up to 8 hours Up to 15.8 hours
Battery Run Time - Local video (1080p) playback time (150 nits): up to 15.8 hours
AC ADAPTER Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Type Keyboard, touchpad Keyboard, digitizer, touchpad, digital pen
Keyboard Backlight Yes Yes
Features Multi-touch touchpad, buttonless touchpad Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad
CONNECTIONS & EXPANSIONS Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Slots - 2 x M.2 (PCI Express 4.0 x4) (1 free)
Interfaces USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 1
HDMI
Headphone/microphone combo jack
USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
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
Headphone/microphone combo jack
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) Yes (microSD)
SOFTWARE Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 11 Pro - German
Software Included Microsoft Office (Trial) Microsoft Office (Trial)
MISCELLANEOUS Lenovo IdeaPad C340-14IWL (81N4) Lenovo ThinkBook 14s Yoga G3 IRU (21JG)
Included Accessories Power adapter USB-C power adapter, ThinkBook Yoga Integrated Smart Pen
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type - Kensington nano security slot
Theft/Intrusion Protection - Security lock slot (cable lock sold separately)
Features Administrator password, hard drive password, power-on password, RapidCharge Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 RoHS, Energy-Related Products (ErP) Lot 6, Energy-Related Products (ErP) Lot 26, TUV Rheinland Low Blue Light (Software Solution)
SAR Value 0.82 W/kg (body), 0.82 W/kg (limb) -
ENERGY STAR Certified - Yes
EPEAT Compliant - EPEAT Gold
Specific Absorption Rate (SAR) 0.82 W/kg (body)
0.82 W/kg (limb)
-
Max Operating Temperature - 35 °C
Min Operating Temperature - 5 °C
Humidity Range Operating - 8 - 95%
Manufacturer Warranty Limited warranty - 1 year - pick-up and return Base warranty - 1 year - pick-up and return
Extended warranty - 1 year - on-site - response time: next business day
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