In depth comparison and review of HP ProBook 640 G1 and Lenovo ThinkPad P51. 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 ProBook 640 G1 based on its technical characteristics, features, user experience, expert reviews and price level.
durable build quality
efficient business features
good keyboard layout
decent processor performance
affordable price point
average battery life
heavier design
limited graphics capability
outdated aesthetics
Advantages and disadvantages of Lenovo ThinkPad P51 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
powerful processor performance
high-resolution display
good connectivity options
heavy and bulky
expensive price point
moderate battery life
noisy under load
DESIGN AND DIMENSIONS | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 34 cm x 23.7 cm x 2.9 cm | 37.74 cm x 25.23 cm x 2.94 cm |
Weight | 2.13 kg | 2.67 kg |
Case Material | Polycarbonate ABS | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
Colour | - | Black |
DISPLAY | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Screen Size (Type) | 14" - TN | 15.6" - IPS |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 200 cd/m² | 250 cd/m² |
Features | HD standard-viewing angle (SVA) eDP anti-glare | Anti-glare |
PROCESSOR | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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CPU | Intel Core i5 (4th Gen) 4300M / 2.6 GHz | Intel Xeon E3-1505MV6 / 3 GHz |
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Max Turbo Speed | 3.3 GHz | 4 GHz |
Number of Cores | Dual-Core | Quad-Core |
Cache | 3 MB | 8 MB |
64-bit Computing | Yes | Yes |
Chipset | - | Mobile Intel CM238 |
Platform Technology | - | Intel vPro Platform |
Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
MEMORY | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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RAM | 4 GB | 16 GB |
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Max RAM Supported | 16 GB | 64 GB |
RAM Type | DDR3L SDRAM | DDR4 SDRAM |
Speed | 1600 MHz / PC3L-12800 | 2400 MHz |
Rated Speed | 1600 MHz | - |
Form Factor | SO-DIMM 204-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 4 |
STORAGE | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Main Storage Size (HDD/SSD) | 120 GB SSD | 512 GB SSD |
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Optical Drive | DVD-Writer | - |
AUDIO & VIDEO | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
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Graphics Processor (GPU) | Intel HD Graphics 4600 | NVIDIA Quadro M2200 / Intel HD Graphics P630 |
Video Memory | - | 4 GB |
Camera | Yes - 720p | Yes - 720p |
Camera Features | Low light enhancement | - |
Video Resolutions | 1280 x 720 | - |
Frame Rate | 30 frames per second | - |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | IDT 92HD91 | Realtek ALC3268 |
Compliant Standards | High Definition Audio, DTS SOUND+ | High Definition Audio |
COMMUNICATIONS | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Wireless | Wi-Fi | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Network Interface | Gigabit Ethernet | Gigabit Ethernet |
BATTERY | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Technology | Lithium Ion | Lithium Ion |
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AC ADAPTER | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | - | 170 Watt |
INPUT | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | - | Yes |
Features | Spill-resistant, touchpad with gesture support | Spill-resistant, multi-touch touchpad |
CONNECTIONS & EXPANSIONS | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Slots | - | 1 x ExpressCard/34 (1 free) |
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Interfaces | 3 x USB 3.0 DisplayPort VGA Headphone/microphone combo jack LAN Dock USB 3.0 (charging) |
USB 3.1 Gen 1/USB 3.0 (Always On) 3 x USB 3.1 Gen 1/USB 3.0 USB-C (supports Thunderbolt 3) Mini DisplayPort HDMI LAN Dock Headphone/microphone combo jack |
Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
SOFTWARE | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Operating System (OS) | Windows 10 Home 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) |
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MISCELLANEOUS | HP ProBook 640 G1 | Lenovo ThinkPad P51 |
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Dockable | Yes | Yes |
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Included Accessories | Power adapter | Power adapter |
Security | Trusted Platform Module (TPM 1.2) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip |
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, hard drive password, power-on password | Administrator password, hard drive password, power-on password, Intel Active Management Technology (iAMT), MIL-STD-810G tested |
Compliant Standards | ISO 9001, ISO 14001, ISO 27001 | ISO 9001, ISO 14001, ISO 27001 |
ENERGY STAR Certified | - | Yes |
Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - 2 years - pick-up and return |