Dell Latitude 7640 vs. Lenovo ThinkBook 16p G4 IRH (21J8)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Dell Latitude 7640 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.

Dell Latitude 7640 Review

Advantages and disadvantages of Dell Latitude 7640 based on its technical characteristics, features, user experience, expert reviews and price level.

robust security features

high-resolution display

powerful processor performance

lightweight design

excellent connectivity options

higher price point

average battery life

limited color options

noisy under load

Lenovo ThinkBook 16p G4 IRH (21J8) Review

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

Laptop Comparison and Tests

Difference between Dell Latitude 7640 and Lenovo ThinkBook 16p G4 IRH (21J8)
82 % - Design
85 % - Display
84 % - Performance
85 % - Connectivity
85 % - Battery
83 % - Design
86 % - Display
85 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Dell Latitude 7640 vs. Lenovo ThinkBook 16p G4 IRH (21J8) Comparison Chart
DESIGN AND DIMENSIONS Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.8 cm x 25.042 cm x 1.95 cm 35.46 cm x 25.5 cm x 1.99 cm
Weight 1.837 kg 2.2 kg
Case Material Aluminum Aluminium (top), aluminium (bottom)
Colour - Dual tone storm grey
DISPLAY Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Screen Size (Type) 16" - IPS 16" - IPS
Screen Resolution 1920 x 1200 (Full HD Plus) 2560 x 1600 (WQXGA)
Pixel Density (ppi) 141.5 -
V-Sync Rate at Max Res. 60 Hz 60 Hz
Widescreen Yes Yes
Image Aspect Ratio - 16:10
Image Brightness 250 cd/m² 400 cd/m²
Colour Gamut 45% NTSC 100% sRGB
Features Anti-glare, 35 ms response rate, 85° horizontal and vertical viewing angle, 0.17952 mm pixel pitch Anti-glare, Delta E<2 calibration, Eyesafe technology, X-Rite Pantone factory color calibration, Dolby Vision, Smart sense panel, ±89° viewing angle
PROCESSOR Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
CPU Intel Core i5 (13th Gen) 1345U / 1.6 GHz Intel Core i7 (13th Gen) 13700H / 2.4 GHz
Max Turbo Speed 4.7 GHz 5 GHz
Number of Cores 10-core 14-core
Cache L3 - 12 MB 24 MB
Platform Technology Intel vPro Enterprise -
Features Intel Smart Cache Integrated memory controller
MEMORY Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
RAM 16 GB (provided memory is soldered) 16 GB (2 x 8 GB)
Max RAM Supported - 32 GB
RAM Type LPDDR5 SDRAM DDR5 SDRAM
Speed 4800 MHz 5200 MHz
Rated Speed 4800 MHz 5200 MHz
Form Factor - SO-DIMM 262-pin
Slots Qty - 2
Empty Slots - 0
STORAGE Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2230 PCIe 4.0 x4 - NVM Express (NVMe), Class 35 512 GB SSD M.2 2280 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) Intel Iris Xe 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 Functions as Intel UHD graphics (for single-channel memory) NVIDIA Resizable BAR, Advanced Optimus, Dynamic Boost 2.0, Direct X 12 Ultimate, NVIDIA DLSS 3
Camera Yes - 1920 x 1080 (standard), 640 x 360 (infrared) Yes - 1080p
Camera Features Privacy shutter, IR/RGB camera, Temporal Noise Reduction, 80 degrees, 86.6 degrees (IR camera) Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera
Image Sensor Type CMOS -
Video Resolutions 1920 x 1080, 640 x 360 -
Frame Rate 30 frames per second -
Sound Four stereo speakers, dual array microphone Two tweeters, two woofers, dual array microphone
Codec Realtek ALC3281 Realtek ALC3306-CG
Compliant Standards High Definition Audio High Definition Audio, Dolby Atmos
Audio Features - Output: harman/kardon stereo speakers, Smart Amplifier (AMP); Input: noise-cancellation technology
VR Ready - Yes
COMMUNICATIONS Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Wireless Bluetooth, NFC, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller Intel Wi-Fi 6E AX 211 M.2 Card
Features Dual stream (2x2), WWAN aerial Dual stream (2x2)
BATTERY Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Technology 3-cell Lithium Ion Lithium polymer
Battery Capacity (Size) 57 Wh 80 Wh
Battery Life - Up to 18 hours
Battery Run Time - Local video (1080p) playback time (150 nits): up to 18 hours
AC ADAPTER Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt, 5 / 9 / 15 / 20 V 230 Watt
INPUT Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Type Keyboard, ClickPad Keyboard, touchpad
Numeric Keypad - Yes
Keyboard Backlight Yes Yes
Features Mini LED backlit, 80-key Spill-resistant, multi-touch touchpad, buttonless touchpad, precision glass touchpad, smart sense keyboard backlight, SMB Service hot key
CONNECTIONS & EXPANSIONS Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Slots - 1 x M.2 (PCI Express 4.0 x4) (1 free)
Interfaces HDMI
2 x USB4 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery)
USB 3.2 Gen 1 (PowerShare)
USB 3.2 Gen 1
Headphone/microphone combo jack
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 Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Operating System (OS) Windows 11 Pro - Dutch / English / French / German / Italian Windows 11 Pro - English
Software Included Microsoft Office (30 days trial, excludes office licence) Microsoft Office (Trial)
MISCELLANEOUS Dell Latitude 7640 Lenovo ThinkBook 16p G4 IRH (21J8)
Included Accessories USB-C power adapter Power adapter
Integrated Options Accelerometer, hall sensor Ambient light sensor
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader, contactless smart card reader Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type Noble Wedge security slot Kensington nano security slot
Theft/Intrusion Protection Security lock slot (cable lock sold separately) Security lock slot (cable lock sold separately)
Features ExpressCharge, ExpressChargeBoost 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 FIPS 140-2, TCG Certified, TCO Certified 9.0 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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