Side by side comparison and review of Lenovo ThinkPad X1 Yoga Gen 7 (21CD) and Lenovo IdeaPad C340-14IWL (81N4). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Lenovo ThinkPad X1 Yoga Gen 7 (21CD) based on its technical characteristics, features, user experience, expert reviews and price level.
versatile convertible design
high-quality display
robust build quality
excellent keyboard feel
good battery life
higher price point
limited graphics performance
heavier than competitors
noisy under load
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
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 31.44 cm x 22.23 cm x 1.553 cm | 32.8 cm x 22.9 cm x 1.79 cm |
| Weight | 1.38 kg | 1.65 kg |
| Case Material | Aluminium (top), aluminium (bottom) | Polycarbonate, polycarbonate ABS, glass-fibre |
| Colour | Storm grey | Platinum | Abyss blue |
| DISPLAY | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Screen Size (Type) | 14" - IPS | 14" - TN |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1200 (WUXGA) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 400 cd/m² | 220 cd/m² |
| Colour Gamut | 100% sRGB | - |
| Features | Anti-glare, 170° viewing angle, Low Power, Eyesafe technology, OGS Technology | Glossy |
| PROCESSOR | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| CPU | Intel Core i5 (12th Gen) 1240P / 1.7 GHz | Intel Core i3 (8th Gen) 8145U / 2.1 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 3.9 GHz |
| Number of Cores | 12-core | Dual-Core |
| Cache | 12 MB | 4 MB |
| 64-bit Computing | - | Yes |
| Platform Technology | Intel Evo | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| RAM | 16 GB (provided memory is soldered) | 8 GB (1 x 4 GB + 4 GB (soldered)) |
|---|---|---|
| Max RAM Supported | - | 20 GB |
| RAM Type | LPDDR5 SDRAM | DDR4 SDRAM |
| Speed | 5200 MHz | 2400 MHz |
| Rated Speed | 6400 MHz | 2400 MHz |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | Intel UHD Graphics |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Camera | Yes - 1080p | Yes - 720p |
| Resolution | - | 1 Megapixel |
| Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Privacy shutter |
| Sound | Stereo speakers, two tweeters, two woofers, quad array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3306 | - |
| Compliant Standards | High Definition Audio, Dolby Atmos, Dolby Voice | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Wireless | NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6E AX 211 | M.2 Card |
| Features | Dual stream (2x2) | Single stream (1x1) |
| WWAN |
|---|
| Generation | 4G upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 45 Wh |
| Battery Life | Up to 24.5 hours | Up to 8 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Type | Keyboard, digitizer, TrackPoint, digital pen, UltraNav | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack HDMI |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 HDMI Headphone/microphone combo jack |
| Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | Intel Connectivity Performance Suite | Microsoft Office (Trial) |
| MISCELLANEOUS | Lenovo ThinkPad X1 Yoga Gen 7 (21CD) | Lenovo IdeaPad C340-14IWL (81N4) |
|---|
| Included Accessories | USB-C power adapter, Lenovo Integrated Pen | Power adapter |
|---|---|---|
| Integrated Options | Accelerometer, proximity sensor | - |
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware 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, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, Firmware Resiliency 3.0 | Administrator password, hard drive password, power-on password, RapidCharge |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 3 |
| 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 | Base warranty - 3 years - pick-up and return Extended warranty - 3 years - on-site Limited warranty - battery - 1 year |
Limited warranty - 1 year - pick-up and return |
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