Dell Inspiron 15 3511 vs Inspiron 14 7400

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Display 2560 x 1600
Battery
CPU
RAM
Storage

Review

Evaluation of Dell Inspiron 15 3511 and Inspiron 14 7400 important characteristics
Performance
System and application performance
Gaming
Performance in popular 3D games
Display
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Connectivity
Ports, webcam and other interfaces
Case
Design, materials, durability and usability
NanoReview Score

Key Differences

What are the key differences between the notebooks
Advantages of the Dell Inspiron 15 3511
  • Includes an old-school USB-A port
  • User-upgradable RAM (up to 16GB)
Advantages of the Dell Inspiron 14 7400
  • Higher number of cutting-edge USB Type-C ports: 1 versus 0
  • Significantly easier to carry: weighs 480 grams less (around 1.06 lbs)
  • Can run popular games at about 68-93% higher FPS
  • Thinner bezels and 6% higher screen-to-body ratio
  • Features a bigger (~27%) battery – 52 against 41 watt-hours
  • 108% sharper screen – 208 versus 100 pixels per inch (PPI)
  • Provides 36% higher max. screen brightness: 300 vs 220 nits
  • Much smaller footprint: 14% more compact case (111.9 vs 130.8 square inches)
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Tests and Specifications

Comparison table of test results and technical specs

Case

Weight 1.73 kg (3.81 lbs) 1.25 kg (2.76 lbs)
Dimensions 358.5 x 235.5 x 17.5-18.9 mm
14.11 x 9.27 x 0.69-0.74 inches
321.6 x 224.5 x 14.2-16.7 mm
12.66 x 8.84 x 0.56-0.66 inches
Area 844 cm2 (130.8 inches2) 722 cm2 (111.9 inches2)
Screen-to-body ratio ~79.5% ~84.4%
Side bezels 6.6 mm 4.7 mm
Colors Black, Silver Silver
Transformer No No
Opening angle - 160°
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber No No
Number of fans 1 1
Noise level - 43.8 dB

Display

Size 15.6 inches 14.5 inches
Type TN LCD IPS LCD
Refresh rate 60 Hz 60 Hz
PPI 100 ppi 208 ppi
Aspect ratio 16:9 16:10
Resolution 1366 x 768 pixels 2560 x 1600 pixels
HDR support No Yes, Dolby Vision
Touchscreen No No
Coating Matte Matte
Display tests
Contrast 400:1 800:1
sRGB color space - 97.4%
Adobe RGB profile - 67.8%
DCI-P3 color gamut - 65.8%
Response time 25 ms 22 ms
Max. brightness
220 nits
300 nits

Battery

Capacity
Voltage 11.25 V 7.6 V
Battery type Li-Po Li-Ion
Replaceable No No
Fast charging Yes Yes
USB Power Delivery No Yes
Charging port position Left Left
Charge power 65 W 65 W
Weigh of AC adapter - 290 gramm

CPU

CPU name
Base frequency 2.0 GHz 0.9-2.4 GHz
Turbo frequency 3.5 GHz 4.2 GHz
Cores 2 4
Threads 4 8
L3 Cache 4 MB 8 MB
Integrated GPU Intel UHD Graphics Xe G4 48 EUs Iris Xe Graphics G7 80EU
Fabrication process 10 nm 10 nm

Benchmarks

Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

Graphics Card

GPU name
TGP 15 W -
Type Integrated Dedicated
Fabrication process 10 nm 14 nm
GPU base clock 300 MHz 1354 MHz
GPU boost clock 1100 MHz 1468 MHz
FLOPS 0.84 TFLOPS 1.879 TFLOPS
Memory size System Shared 2 GB
Memory type DDR4 GDDR5
Memory bus - 64 bit
Memory speed 2.67 Gbps ~7 Gbps
Shading units 384 640
DirectX support 12 12
GPU performance
0.84 TFLOPS
1.879 TFLOPS

RAM

RAM size
Channels 1x4 GB 2x4 GB
Clock 2666 MHz 4267 MHz
Type DDR4 LPDDR4X
Upgradable Yes No
Total slots 2 -
Max. ram size 16 GB -

Storage

Storage size
Bus PCI-E Gen 3.0 (4x) PCI-E Gen 3.0 (4x)
Storage type SSD (M2) SSD (M2)
Channels 1x128 GB 1x256 GB
Upgradable Yes Yes
Total slots 1 1
NVMe Yes Yes

Sound

Audio chip Realtek ALC3204 Realtek ALC3204
Speakers 2.0 2.0
Power 2x2W 2x2W
Dolby Atmos No No
Loudness - 70.1 dB
Microphones 1 2

Connectivity

Wi-Fi standard v6 v6
Bluetooth v5.1 v5.1
Fingerprint No Yes
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1280 x 720 1280 x 720
Ports
USB-A 3x USB 3.2 2x USB 3.2
USB Type-C No 1x USB 4.0
Thunderbolt No Thunderbolt 4
HDMI 1x HDMI 1.4 1x HDMI 2.0
DisplayPort No No
VGA No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) No No
SD card reader Yes Yes
Proprietary charging port Yes Yes

Input

Keyboard
Keyboard type Island Island
Numpad Yes No
Backlight Yes Yes
Touchpad
Size 11.5 x 8.0 cm 11.5 x 8.0 cm
Surface Plastic Plastic
Windows Precision Yes Yes
*Disclaimer! Ports, speakers, display, and other specifications can be different depending on the laptop’s particular configuration or region.

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