Dell Latitude 7640 vs. Lenovo IdeaPad 720S-14IKBR (81BD)

Laptop Comparison, Reviews and Tests

Detailed comparison and review of Dell Latitude 7640 and Lenovo IdeaPad 720S-14IKBR (81BD). With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.

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 IdeaPad 720S-14IKBR (81BD) Review

Advantages and disadvantages of Lenovo IdeaPad 720S-14IKBR (81BD) based on its technical characteristics, features, user experience, expert reviews and price level.

slim, lightweight design

sharp full HD display

solid overall performance

fast SSD storage

decent battery life

limited port selection

no dedicated GPU

average sound quality

pricier than competitors

Laptop Comparison and Tests

Difference between Dell Latitude 7640 and Lenovo IdeaPad 720S-14IKBR (81BD)
82 % - Design
85 % - Display
84 % - Performance
85 % - Connectivity
85 % - Battery
82 % - Design
72 % - Display
75 % - Performance
75 % - Connectivity
72 % - Battery

Laptop Specifications Comparison

Dell Latitude 7640 vs. Lenovo IdeaPad 720S-14IKBR (81BD) Comparison Chart
DESIGN AND DIMENSIONS Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.8 cm x 25.042 cm x 1.95 cm 32.07 cm x 22.28 cm x 1.59 cm
Weight 1.837 kg 1.55 kg
Case Material Aluminum Aluminium (top), aluminium (bottom)
Colour - Silver
DISPLAY Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Screen Size (Type) 16" - IPS 14" - IPS
Screen Resolution 1920 x 1200 (Full HD Plus) 1920 x 1080 (Full HD)
Pixel Density (ppi) 141.5 -
V-Sync Rate at Max Res. 60 Hz -
Widescreen Yes Yes
Image Aspect Ratio - 16:9
Image Brightness 250 cd/m² 300 cd/m²
Colour Gamut 45% NTSC -
Features Anti-glare, 35 ms response rate, 85° horizontal and vertical viewing angle, 0.17952 mm pixel pitch Anti-glare
PROCESSOR Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
CPU Intel Core i5 (13th Gen) 1345U / 1.6 GHz Intel Core i5 (8th Gen) 8250U / 1.6 GHz
Max Turbo Speed 4.7 GHz 3.4 GHz
Number of Cores 10-core Quad-Core
Cache L3 - 12 MB 6 MB
Platform Technology Intel vPro Enterprise -
Features Intel Smart Cache Integrated memory controller
MEMORY Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
RAM 16 GB (provided memory is soldered) 8 GB (1 x 8 GB)
Max RAM Supported - 16 GB
RAM Type LPDDR5 SDRAM DDR4 SDRAM
Speed 4800 MHz 2400 MHz
Rated Speed 4800 MHz 2400 MHz
Form Factor - SO-DIMM 260-pin
Slots Qty - 1
Empty Slots - 0
STORAGE Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2230 PCIe 4.0 x4 - NVM Express (NVMe), Class 35 128 GB SSD M.2 2280 PCIe 3.0 x4
AUDIO & VIDEO Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) Intel Iris Xe Graphics NVIDIA GeForce MX150 / Intel UHD Graphics 620
Video Memory - 2 GB GDDR5 SDRAM
Video System Features Functions as Intel UHD graphics (for single-channel memory) -
Camera Yes - 1920 x 1080 (standard), 640 x 360 (infrared) Yes - 720p
Resolution - 1 Megapixel
Camera Features Privacy shutter, IR/RGB camera, Temporal Noise Reduction, 80 degrees, 86.6 degrees (IR camera) Fixed focus
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 Stereo speakers, dual array microphone
Codec Realtek ALC3281 -
Compliant Standards High Definition Audio High Definition Audio, Dolby Audio Premium
Audio Features - Output: JBL
COMMUNICATIONS Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Wireless Bluetooth, NFC, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) 802.11a/b/g/n/ac, Bluetooth 4.1
Wireless Controller Intel Wi-Fi 6E AX 211 M.2 Card
Features Dual stream (2x2), WWAN aerial Single stream (1x1)
BATTERY Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Technology 3-cell Lithium Ion 4-cell lithium polymer
Battery Capacity (Size) 57 Wh 55 Wh
Battery Life - Up to 14 hours
AC ADAPTER Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt, 5 / 9 / 15 / 20 V 65 Watt
INPUT Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Type Keyboard, ClickPad Keyboard, touchpad
Keyboard Backlight Yes Yes
Features Mini LED backlit, 80-key Multi-touch touchpad
CONNECTIONS & EXPANSIONS Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
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
USB 3.0 (Always On)
USB 3.0
USB-C 3.1 Gen 1/Thunderbolt 3/DisplayPort 1.2a (Power Delivery)
HDMI
Headphone/microphone combo jack
Memory Card Reader - 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Operating System (OS) Windows 11 Pro - Dutch / English / French / German / Italian Windows 10 Home 64-bit Edition - English
Software Included Microsoft Office (30 days trial, excludes office licence) Lenovo Settings, McAfee LiveSafe (30 days trial), Lenovo ID, Lenovo App Explorer
MISCELLANEOUS Dell Latitude 7640 Lenovo IdeaPad 720S-14IKBR (81BD)
Included Accessories USB-C power adapter Power adapter
Integrated Options Accelerometer, hall sensor -
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader, contactless smart card reader Fingerprint reader
Security Slot Type Noble Wedge security slot -
Theft/Intrusion Protection Security lock slot (cable lock sold separately) -
Features ExpressCharge, ExpressChargeBoost Administrator password, power-on password
Compliant Standards FIPS 140-2, TCG Certified, TCO Certified 9.0 RoHS
Max Operating Temperature 35 °C -
Min Operating Temperature 0 °C -
Humidity Range Operating 10 - 90% (non-condensing) -
Manufacturer Warranty - Limited warranty - 1 year - pick-up and return
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