In depth comparison and review of HP EliteBook 645 G9 Notebook and Lenovo ThinkBook 16p G4 IRH (21J8). 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 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
Advantages and disadvantages of Lenovo ThinkBook 16p G4 IRH (21J8) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful amd processor
high-resolution display
solid build quality
good thermal management
decent battery life
heavier than competitors
limited port selection
higher price point
noisy under load
| DESIGN AND DIMENSIONS | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 32.19 cm x 21.39 cm x 1.99 cm | 35.46 cm x 25.5 cm x 1.99 cm |
| Weight | 1.37 kg | 2.2 kg |
| Case Material | - | Aluminium (top), aluminium (bottom) |
| Colour | - | Dual tone storm grey |
| DISPLAY | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Screen Size (Type) | 14" | 16" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | - |
| Screen Resolution | - | 2560 x 1600 (WQXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:10 |
| Image Brightness | - | 400 cd/m² |
| Colour Gamut | - | 100% sRGB |
| Features | - | Anti-glare, Delta E<2 calibration, Eyesafe technology, X-Rite Pantone factory color calibration, Dolby Vision, Smart sense panel, ±89° viewing angle |
| PROCESSOR | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| CPU | No CPU | Intel Core i7 (13th Gen) 13700H / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | - | 5 GHz |
| Number of Cores | - | 14-core |
| Cache | - | 24 MB |
| Features | - | Integrated memory controller |
| MEMORY | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| RAM | 0 GB | 16 GB (2 x 8 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 32 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | - | 5200 MHz |
| Rated Speed | - | 5200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 2 | 0 |
| STORAGE | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Main Storage Size (HDD/SSD) | - | 512 GB SSD M.2 2280 PCIe 4.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | No graphics | NVIDIA GeForce RTX 4060 / Intel Iris Xe Graphics |
| Max Monitors Supported | - | 3 external monitor(s) |
| Video Memory | - | 8 GB GDDR6 SDRAM |
| Video System Features | - | NVIDIA Resizable BAR, Advanced Optimus, Dynamic Boost 2.0, Direct X 12 Ultimate, NVIDIA DLSS 3 |
| Camera | - | Yes - 1080p |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera |
| Sound | Stereo speakers | Two tweeters, two woofers, dual array microphone |
| Codec | Realtek ALC3247 | Realtek ALC3306-CG |
| Compliant Standards | - | High Definition Audio, Dolby Atmos |
| Audio Features | - | Output: harman/kardon stereo speakers, Smart Amplifier (AMP); Input: noise-cancellation technology |
| VR Ready | - | Yes |
| COMMUNICATIONS | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Wireless | - | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | M.2 Card |
| Features | - | Dual stream (2x2) |
| BATTERY | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Technology | 3-cell lithium polymer | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | - | 80 Wh |
| Battery Life | - | Up to 18 hours |
| Battery Run Time | - | Local video (1080p) playback time (150 nits): up to 18 hours |
| AC ADAPTER | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Input | AC 115/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 5 / 9 / 12 / 15 / 20 V | 230 Watt |
| INPUT | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Type | Keyboard, ClickPad | Keyboard, touchpad |
|---|---|---|
| Keyboard Name | HP Premium | - |
| Numeric Keypad | - | Yes |
| Keyboard Backlight | - | Yes |
| Features | Volume control, spill-resistant, ClickPad with gesture support | Spill-resistant, multi-touch touchpad, buttonless touchpad, precision glass touchpad, smart sense keyboard backlight, SMB Service hot key |
| CONNECTIONS & EXPANSIONS | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Slots | - | 1 x M.2 (PCI Express 4.0 x4) (1 free) |
|---|---|---|
| Interfaces | 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) |
2 x USB 3.2 Gen 2 USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI (8K support) Headphone/microphone combo jack |
| Memory Card Reader | - | Yes (SD Express Card) |
| SOFTWARE | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Operating System (OS) | No operating system | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Microsoft Office (Trial) |
| MISCELLANEOUS | HP EliteBook 645 G9 Notebook | Lenovo ThinkBook 16p G4 IRH (21J8) |
|---|
| Included Accessories | - | Power adapter |
|---|---|---|
| Integrated Options | HP Tamper Lock | Ambient light sensor |
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington nano security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately), chassis intrusion sensor | Security lock slot (cable lock sold separately) |
| Features | Automatic DriveLock, HP DriveLock, HP Fast Charge, BIOS Update via Network, MIL-STD-810H tested | Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro, self-healing BIOS, LA2-Q AI performance chip |
| Compliant Standards | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, RoHS, WEEE, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, BNCI | RoHS, Energy-Related Products (ErP) Lot 6, FSC, Energy-Related Products (ErP) Lot 26, TUV Rheinland Low Blue Light (Hardware Solution), TCO Certified 9.0, Low-VOC |
| Carbon Footprint | - | 402 kg carbon emissions (EU) |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 0 °C | 5 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 8 - 95% |
| Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
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