In depth comparison and review of Lenovo IdeaPad 520-15IKB (81BF) and Lenovo Yoga S740-14IIL (81RS). 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 IdeaPad 520-15IKB (81BF) based on its technical characteristics, features, user experience, expert reviews and price level.
robust metal design
crisp full HD display
backlit keyboard feature
adequate processing power
reasonable price point
average battery life
limited graphics performance
heavier than competitors
no USB-C port
Advantages and disadvantages of Lenovo Yoga S740-14IIL (81RS) based on its technical characteristics, features, user experience, expert reviews and price level.
impressive 4k display
sleek aluminum design
fast intel core performance
good battery life
thunderbolt 3 support
limited port variety
no dedicated gpu
higher price range
average speaker quality
| DESIGN AND DIMENSIONS | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 37.8 cm x 26 cm x 2.2 cm | 32.235 cm x 21.2 cm x 1.815 cm |
| Weight | 2.2 kg | 1.4 kg |
| Case Material | Metal | Aluminum |
| Colour | Golden | Iron grey |
| DISPLAY | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" |
|---|---|---|
| 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 | 250 cd/m² | 400 cd/m² |
| Colour Gamut | - | 72% NTSC |
| Features | Anti-glare | Glossy, Wide Viewing Angle, glass cover, Dolby Vision, 72% NTSC colour gamut |
| PROCESSOR | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| CPU | Intel Core i5 (8th Gen) 8550U / 1.8 GHz | Intel Core i5 (10th Gen) 1035G4 / 1.1 GHz |
|---|---|---|
| Max Turbo Speed | 4 GHz | 3.7 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 8 MB | 6 MB |
| 64-bit Computing | - | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| RAM | 8 GB (1 x 4 GB + 4 GB (soldered)) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR4X SDRAM |
| Speed | 2133 MHz | 3733 MHz |
| Rated Speed | 2400 MHz | 3733 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Main Storage Size (HDD/SSD) | 2 TB HDD SATA 6Gb/s / 5400 rpm | 256 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|---|---|
| Optical Drive | DVD±RW | - |
| AUDIO & VIDEO | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce MX150 / Intel UHD Graphics 620 | Intel Iris Plus Graphics |
| Video Memory | 4 GB GDDR5 SDRAM | - |
| Camera | Yes - 720p | Yes - 720p |
| Resolution | 1 Megapixel | - |
| Camera Features | Fixed focus | IR camera, ToF sensor |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Atmos |
| Audio Features | Output: Harman audio technology | - |
| COMMUNICATIONS | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
|---|---|---|
| Wireless Controller | M.2 Card | M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| Features | Single stream (1x1) | Dual stream (2x2) |
| BATTERY | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Technology | 2-cell lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 35 Wh | 62 Wh |
| Battery Life | Up to 6 hours | Up to 19 hours |
| AC ADAPTER | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes |
| Features | - | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Interfaces | USB-C 3.0 2 x USB 3.0 HDMI LAN Headphone/microphone combo jack |
USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | - |
| SOFTWARE | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | - | Microsoft Office (Trial) |
| MISCELLANEOUS | Lenovo IdeaPad 520-15IKB (81BF) | Lenovo Yoga S740-14IIL (81RS) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington mini security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | Administrator password, hard drive password, power-on password | Administrator password, power-on password, RapidCharge |
| Compliant Standards | RoHS | RoHS |
| SAR Value | - | 0.439 W/kg (body), 0.439 W/kg (limb) |
| Specific Absorption Rate (SAR) | - | 0.439 W/kg (body) 0.439 W/kg (limb) |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - pick-up and return |
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