Side by side comparison and review of Lenovo ThinkPad E15 Gen 4 (21ED) and Lenovo ThinkBook 14-IML (20RV). 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 E15 Gen 4 (21ED) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
comfortable keyboard
good security features
affordable price
average display quality
limited graphics power
moderate battery life
noisy under load
Advantages and disadvantages of Lenovo ThinkBook 14-IML (20RV) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
affordable price point
adequate connectivity options
solid keyboard feel
average display quality
moderate battery life
limited graphics power
no thunderbolt support
DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 32.6 cm x 23 cm x 1.79 cm |
Weight | 1.78 kg | 1.5 kg |
Case Material | Aluminium (top), polycarbonate ABS (bottom) | Aluminum |
Colour | Black | Mineral grey |
DISPLAY | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Screen Size (Type) | 15.6" - IPS | 14" |
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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 | 300 cd/m² | 250 cd/m² |
Features | Anti-glare, 170° viewing angle | Anti-glare |
PROCESSOR | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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CPU | AMD Ryzen 5 5625U / 2.3 GHz | Intel Core i5 (10th Gen) 10210U / 1.6 GHz |
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Max Turbo Speed | 4.3 GHz | 4.2 GHz |
Number of Cores | 6-core | Quad-Core |
Cache | L3 - 16 MB | 6 MB |
64-bit Computing | - | Yes |
Features | Integrated memory controller | Integrated memory controller |
MEMORY | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
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Max RAM Supported | 40 GB | 24 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | 3200 MHz | 2666 MHz |
Rated Speed | 3200 MHz | 2666 MHz |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 1 | 1 |
Empty Slots | 1 | 1 |
STORAGE | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe) |
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AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Graphics Processor (GPU) | AMD Radeon Graphics | Intel UHD Graphics |
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Max Monitors Supported | 2 external monitor(s) | - |
Camera | Yes - 1080p | Yes - 720p |
Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Fixed focus, ThinkShutter camera privacy |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3287 | Realtek ALC3287 |
Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Audio |
Audio Features | Harman-branded | - |
COMMUNICATIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
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Wireless Controller | M.2 Card | M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | Realtek RTL8111H-CG | - |
Features | Wake-on-LAN (WOL), dual stream (2x2) | Dual stream (2x2) |
BATTERY | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Technology | Lithium polymer | Lithium Ion |
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Battery Capacity (Size) | 57 Wh | 45 Wh |
Battery Life | Up to 16.5 hours | Up to 9 hours |
AC ADAPTER | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 65 Watt | 65 Watt |
INPUT | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
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Numeric Keypad | Yes | - |
Keyboard Backlight | Yes | Yes |
Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Spill-resistant, multi-touch touchpad, buttonless touchpad |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Slots | 2 x M.2 Card (1 free) | - |
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Interfaces | USB 2.0 USB 3.2 Gen 1 (Always On) USB-C 3.2 Gen 1 (supports DisplayPort 1.2 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
USB 2.0 USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack LAN |
Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
SOFTWARE | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Operating System (OS) | Windows 11 Pro - English | Windows 10 Home 64-bit Edition - English |
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Software Included | - | Microsoft Office (30 days trial) |
MISCELLANEOUS | Lenovo ThinkPad E15 Gen 4 (21ED) | Lenovo ThinkBook 14-IML (20RV) |
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Included Accessories | USB-C power adapter | Power adapter |
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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 security slot | Kensington 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, MIL-STD-810H tested, self-healing BIOS, NVMe password | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) | RoHS, Energy-Related Products (ErP) Lot 3 |
SAR Value | - | 0.49 W/kg (body), 0.49 W/kg (limb) |
ENERGY STAR Certified | Yes | - |
EPEAT Compliant | EPEAT Gold | - |
Max Operating Temperature | 35 °C | - |
Min Operating Temperature | 5 °C | - |
Humidity Range Operating | 8 - 95% | - |
Manufacturer Warranty | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
Limited warranty - 1 year - pick-up and return |