Side by side comparison and review of Lenovo ThinkPad E15 Gen 4 (21ED) and HP EliteBook 840 G10 Notebook. 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 HP EliteBook 840 G10 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
lightweight and portable
powerful intel processor
high-resolution display
fast charging technology
expensive price point
limited graphics performance
no HDMI port
average battery life
DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 31.56 cm x 22.4 cm x 1.92 cm |
Weight | 1.78 kg | 1.36 kg |
Case Material | Aluminium (top), polycarbonate ABS (bottom) | - |
Colour | Black | - |
DISPLAY | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Screen Size (Type) | 15.6" - IPS | 14" |
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LCD Backlight Technology | LED backlight | WLED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | - |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | - |
Image Brightness | 300 cd/m² | - |
Features | Anti-glare, 170° viewing angle | - |
PROCESSOR | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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CPU | AMD Ryzen 5 5625U / 2.3 GHz | Intel Core i7 (13th Gen) 1355U / 1.7 GHz |
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Max Turbo Speed | 4.3 GHz | 5 GHz |
Number of Cores | 6-core | 10-core |
Cache | L3 - 16 MB | L3 - 12 MB |
Features | Integrated memory controller | Hyper-Threading Technology, Intel Turbo Boost Technology, Intel Smart Cache, Intel vPro Enterprise Platform Eligibility |
MEMORY | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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RAM | 8 GB (provided memory is soldered) | 0 GB |
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Max RAM Supported | 40 GB | 64 GB |
RAM Type | DDR4 SDRAM | DDR5 SDRAM |
Speed | 3200 MHz | - |
Rated Speed | 3200 MHz | - |
Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
Slots Qty | 1 | 2 |
Empty Slots | 1 | 2 |
STORAGE | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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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) | - |
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AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Graphics Processor (GPU) | AMD Radeon Graphics | Intel Iris Xe Graphics |
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Max Monitors Supported | 2 external monitor(s) | - |
Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
Camera | Yes - 1080p | - |
Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | - |
Sound | Stereo speakers, dual array microphone | Dual stereo speakers, dual array microphone |
Codec | Realtek ALC3287 | Realtek ALC3315 |
Compliant Standards | High Definition Audio, Dolby Audio | - |
Audio Features | Harman-branded | Output: Bang & Olufsen Audio, discrete amplifiers |
COMMUNICATIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | - |
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Wireless Controller | M.2 Card | - |
Network Interface | Gigabit Ethernet | - |
Ethernet Controller | Realtek RTL8111H-CG | - |
Features | Wake-on-LAN (WOL), dual stream (2x2) | - |
BATTERY | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Technology | Lithium polymer | 3-cell lithium polymer |
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Battery Capacity (Size) | 57 Wh | - |
Battery Life | Up to 16.5 hours | - |
AC ADAPTER | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Input | AC 100-240 V (50/60 Hz) | - |
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Output | 65 Watt | - |
INPUT | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, ClickPad |
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Keyboard Name | - | HP Premium |
Numeric Keypad | Yes | - |
Keyboard Backlight | Yes | - |
Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Multi-touch clickpad, gesture function, precision touchpad, glass clickpad, spill-resistant |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Slots | 2 x M.2 Card (1 free) | 1 x Nano-SIM 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 |
2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery) USB 3.2 Gen 1 USB 3.2 Gen 1 (charging) HDMI 2.1 Headphone/microphone combo jack |
SOFTWARE | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Operating System (OS) | Windows 11 Pro - English | No operating system |
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MISCELLANEOUS | Lenovo ThinkPad E15 Gen 4 (21ED) | HP EliteBook 840 G10 Notebook |
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Included Accessories | USB-C power adapter | - |
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Integrated Options | - | HP Tamper Lock |
Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip |
Security Slot Type | Kensington security slot | Kensington nano 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 | BIOS Absolute Persistence, HP Fast Charge, BIOS Update via Network, Secured-core PC enabled |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) | CSA, VCCI, BSMI, GS, CCC, FIPS 140-2 Level 2, FCC, RoHS, KCC, WEEE, CISPR, ICES, Common Criteria EAL4+, KC, SRRC, NCC, low halogen, UL 62368-1, TEC, KES, Ukraine NSoC, EAEU Compliance, Saudi Arabian Compliance |
ENERGY STAR Certified | Yes | - |
EPEAT Compliant | EPEAT Gold | - |
Max Operating Temperature | 35 °C | 35 °C |
Min Operating Temperature | 5 °C | 0 °C |
Humidity Range Operating | 8 - 95% | 10 - 90% (non-condensing) |
Manufacturer Warranty | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
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