In depth comparison and review of Lenovo ThinkPad L15 Gen 3 (21C4) and HP EliteBook 645 G9 Notebook. 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 ThinkPad L15 Gen 3 (21C4) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
good battery life
solid performance
adequate port selection
average display brightness
heavier than competitors
limited graphics performance
no thunderbolt support
Advantages and disadvantages of HP EliteBook 645 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
powerful amd processor
lightweight and portable
high-resolution display
fast charging support
average battery life
limited storage capacity
no dedicated gpu
higher price point
| DESIGN AND DIMENSIONS | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 36.02 cm x 23.7 cm x 1.993 cm | 32.19 cm x 21.39 cm x 1.99 cm |
| Weight | 1.76 kg | 1.37 kg |
| Case Material | Polycarbonate ABS (bottom), polycarbonate ABS (top) | - |
| Colour | Thunder black | - |
| DISPLAY | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" |
|---|---|---|
| LCD Backlight Technology | LED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | - |
| Image Brightness | 250 cd/m² | - |
| Colour Gamut | 45% NTSC | - |
| Features | Anti-glare, 170° viewing angle | - |
| PROCESSOR | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | - |
| Number of Cores | 10-core | - |
| Cache | 12 MB | - |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| RAM | 16 GB (1 x 16 GB) | 0 GB |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 3200 MHz | - |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 2 |
| STORAGE | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia | - |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | No graphics |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Camera | Yes - 1080p | - |
| Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers |
| Codec | Realtek ALC3287 | Realtek ALC3247 |
| Compliant Standards | High Definition Audio, Dolby Audio | - |
| COMMUNICATIONS | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | - |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 201 | - |
| Network Interface | Gigabit Ethernet | - |
| BATTERY | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Technology | 3-cell lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | - |
| AC ADAPTER | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 5 / 9 / 15 / 20 V | 5 / 9 / 12 / 15 / 20 V |
| INPUT | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Volume control, spill-resistant, ClickPad with gesture support |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Interfaces | USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack LAN |
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery) LAN USB 3.2 Gen 1 HDMI Headphone/microphone combo jack USB 3.2 Gen 1 (powered) USB 3.2 Gen 1 (Power Delivery) |
|---|---|---|
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence | No operating system |
|---|
| MISCELLANEOUS | Lenovo ThinkPad L15 Gen 3 (21C4) | HP EliteBook 645 G9 Notebook |
|---|
| Included Accessories | USB-C power adapter | - |
|---|---|---|
| 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 nano security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately), chassis intrusion sensor |
| Features | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password | Automatic DriveLock, HP DriveLock, HP Fast Charge, BIOS Update via Network, MIL-STD-810H tested |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, RoHS, WEEE, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, BNCI |
| 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) |
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