In depth comparison and review of Lenovo Yoga C940-14IIL (Lenovo Yoga C940) and Lenovo Yoga C640-13IML (Lenovo Yoga C640). 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.
Advantages and disadvantages of Lenovo Yoga C940-14IIL (Lenovo Yoga C940) based on its technical characteristics, features, user experience, expert reviews and price level.
excellent build quality
vibrant 4k display
innovative garaged stylus
strong performance
good battery life
pricey for base model
limited port selection
no dedicated graphics
heavier than competitors
Advantages and disadvantages of Lenovo Yoga C640-13IML (Lenovo Yoga C640) based on its technical characteristics, features, user experience, expert reviews and price level.
long battery life
lightweight design
responsive touchscreen
solid build quality
fast charging support
limited port selection
average speaker quality
no dedicated GPU
higher price point
| DESIGN AND DIMENSIONS | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 32.03 cm x 21.56 cm x 1.57 cm | 30.6 cm x 20.448 cm x 1.695 cm |
| Weight | 1.35 kg | 1.35 kg |
| Case Material | Aluminum | Aluminum, polycarbonate, glass-fibre |
| Colour | Iron grey | Mica | Iron grey |
| DISPLAY | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Screen Size (Type) | 14" - IPS | 13.3" - IPS |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | Yes (10-point multi-touch) |
| 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 | 400 cd/m² | 400 cd/m² |
| Colour Gamut | 72% NTSC | 72% NTSC |
| Features | Glossy, Dolby Vision, 72% NTSC colour gamut | Anti-glare, 72% NTSC colour gamut |
| PROCESSOR | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| CPU | Intel Core i5 (10th Gen) 1035G4 / 1.1 GHz | Intel Core i5 (10th Gen) 10210U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | 4.2 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR4X SDRAM | DDR4 SDRAM |
| Speed | 3733 MHz | 2400 MHz |
| Rated Speed | 3733 MHz | 2400 MHz |
| STORAGE | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Graphics Processor (GPU) | Intel Iris Plus Graphics | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Resolution | 1 Megapixel | - |
| Camera Features | Privacy shutter | Privacy shutter |
| Sound | Four speakers, dual array microphone | Stereo speakers, dual array microphone |
| Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Atmos |
| COMMUNICATIONS | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | M.2 Card | M.2 Card |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| BATTERY | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 60 Wh | 60 Wh |
| Battery Life | Up to 17.8 hours | Up to 20 hours |
| AC ADAPTER | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 45 Watt |
| INPUT | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Type | Keyboard, digitizer, touchpad, digital pen | Keyboard, digitizer, touchpad, digital pen |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Interfaces | 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) USB 3.1 Gen 2 Headphone/microphone combo jack |
2 x USB 3.1 Gen 1 USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) Headphone/microphone combo jack |
|---|
| SOFTWARE | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | Microsoft Office (Trial) | Microsoft Office (Trial) |
| MISCELLANEOUS | Lenovo Yoga C940-14IIL (Lenovo Yoga C940) | Lenovo Yoga C640-13IML (Lenovo Yoga C640) |
|---|
| Included Accessories | USB-C power adapter, Lenovo Active Pen | Power adapter, Lenovo Active Pen |
|---|---|---|
| Integrated Options | Accelerometer | Accelerometer |
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Features | Administrator password, power-on password | Administrator password, power-on password |
| Compliant Standards | RoHS | RoHS |
| SAR Value | 1.23 W/kg (body), 1.23 W/kg (limb) | 0.32 W/kg (body), 0.32 W/kg (limb) |
| ENERGY STAR Certified | Yes | Yes |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - pick-up and return |
| Model Number | 14IIL 81Q9 | 13IML 81UE |
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