In depth comparison and review of LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) and Dell Latitude 7640. 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 LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) based on its technical characteristics, features, user experience, expert reviews and price level.
exceptionally lightweight design
impressive battery life
crisp full HD display
solid state drive storage
robust build quality
average graphics performance
limited port selection
higher price point
no dedicated GPU
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
| DESIGN AND DIMENSIONS | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.8 cm x 22.8 cm x 1.68 cm | 35.8 cm x 25.042 cm x 1.95 cm |
| Weight | 1.099 kg | 1.837 kg |
| Case Material | - | Aluminum |
| Colour | White | - |
| DISPLAY | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Screen Size (Type) | 15.6" - IPS | 16" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (Full HD Plus) |
| 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 |
| Colour Gamut | 96% sRGB | 45% NTSC |
| Features | - | Anti-glare, 35 ms response rate, 85° horizontal and vertical viewing angle, 0.17952 mm pixel pitch |
| PROCESSOR | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| CPU | Intel Core i7 (8th Gen) 8565U / 1.8 GHz | Intel Core i5 (13th Gen) 1345U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.6 GHz | 4.7 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | L3 - 8 MB | L3 - 12 MB |
| 64-bit Computing | Yes | - |
| Platform Technology | - | Intel vPro Enterprise |
| Features | Intel Turbo Boost Technology 2.0 | Intel Smart Cache |
| MEMORY | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| RAM | 16 GB | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2400 MHz | 4800 MHz |
| Rated Speed | - | 4800 MHz |
| STORAGE | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD | 512 GB SSD M.2 2230 PCIe 4.0 x4 - NVM Express (NVMe), Class 35 |
|---|
| AUDIO & VIDEO | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - HD | Yes - 1920 x 1080 (standard), 640 x 360 (infrared) |
| Camera Features | - | Privacy shutter, IR/RGB camera, Temporal Noise Reduction, 80 degrees, 86.6 degrees (IR camera) |
| Image Sensor Type | - | CMOS |
| Video Resolutions | - | 1920 x 1080, 640 x 360 |
| Frame Rate | - | 30 frames per second |
| Sound | Stereo speakers, two microphones | Four stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3281 |
| Compliant Standards | DTS Headphone:X | High Definition Audio |
| COMMUNICATIONS | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | Bluetooth, NFC, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wireless-AC 9560 | Intel Wi-Fi 6E AX 211 |
| Network Interface | 10/100 Ethernet | - |
| Features | Miracast, dual stream (2x2) | Dual stream (2x2), WWAN aerial |
| BATTERY | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Technology | 4-cell Lithium Ion | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 72 Wh | 57 Wh |
| Battery Life | Up to 21.5 hours | - |
| AC ADAPTER | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 48 Watt | 65 Watt, 5 / 9 / 15 / 20 V |
| INPUT | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Type | Keyboard, touchpad | Keyboard, ClickPad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes |
| Features | Scrolling, gesture function, precision touchpad | Mini LED backlit, 80-key |
| CONNECTIONS & EXPANSIONS | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Slots | 2 x SSD (1 free) | - |
|---|---|---|
| Interfaces | HDMI USB-C 3.1 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) 3 x USB 3.1 Headphone output |
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 |
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition | Windows 11 Pro - Dutch / English / French / German / Italian |
|---|---|---|
| Software Included | Microsoft Office (30 days trial), LG Easy Guide, LG Control Center, LG Update Center, LG On Screen Display 3, LG Reader Mode | Microsoft Office (30 days trial, excludes office licence) |
| MISCELLANEOUS | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) | Dell Latitude 7640 |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Integrated Options | - | Accelerometer, hall sensor |
| Security | Fingerprint reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader, contactless smart card reader |
| Security Slot Type | Kensington security slot | Noble Wedge security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Dust-resistant, shock-resistant, pressure-resistant, vibration-resistant | ExpressCharge, ExpressChargeBoost |
| Compliant Standards | MIL-STD 810G | FIPS 140-2, TCG Certified, TCO Certified 9.0 |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 0 °C |
| Humidity Range Operating | - | 10 - 90% (non-condensing) |
| Manufacturer Warranty | Limited warranty - 2 years Limited warranty - battery - 1 year |
- |
| Model Number | V.AA78A1 | - |
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