Lenovo Legion 7i Gen 6 16" (2021, Intel) vs Dell Alienware m15 R7

Please select specific configurations for the laptops to get a more accurate comparative review
Display 2560 x 1600
Battery 80 Wh


Evaluation of Lenovo Legion 7i Gen 6 16" (2021, Intel) and Dell Alienware m15 R7 important characteristics
System and application performance
Performance in popular 3D games
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Ports, webcam and other interfaces
Design, materials, durability and usability
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Key Differences

What are the key differences between the notebooks
Advantages of the Lenovo Legion 7i Gen 6 16" (2021, Intel)
  • Higher number of cutting-edge USB Type-C ports: 3 versus 1
  • Can run popular games at about 32-44% higher FPS
  • Includes an old-school USB-A port
  • Features a much bigger (~43%) battery – 80 against 56 watt-hours
  • Thinner bezels and 15% higher screen-to-body ratio
  • Provides 67% higher max. screen brightness: 500 vs 300 nits
  • 34% sharper screen – 189 versus 141 pixels per inch (PPI)
Advantages of the Dell Alienware m15 R7
  • Around 35% better multi-core CPU performance in the Cinebench R23 test

Value for money

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Tests and Specifications

Comparison table of test results and technical specs


Weight 2.5 kg (5.51 lbs) 2.42 kg (5.34 lbs)
Dimensions 360 x 260 x 20.1-23.5 mm
14.17 x 10.24 x 0.79-0.93 inches
356.2 x 272.5 x 12.9-20.6 mm
14.02 x 10.73 x 0.51-0.81 inches
Area 936 cm2 (145.1 inches2) 971 cm2 (150.4 inches2)
Screen-to-body ratio ~79.3% ~69.1%
Side bezels 7.7 mm 5.4 mm
Colors Gray Black
Material Aluminum Plastic
Transformer No No
Opening angle 180° -
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber Yes No
Liquid metal No No
Number of fans 2 2
Noise level (max. load) - 53.9 dB


Size 16 inches 15.6 inches
Refresh rate 165 Hz 165 Hz
PPI 189 ppi 141 ppi
Aspect ratio 16:10 16:9
Resolution 2560 x 1600 pixels 1920 x 1080 pixels
HDR support Yes, Dolby Vision No
Sync technology G-Sync G-Sync (configurable)
Touchscreen No No
Coating Matte Matte
Ambient light sensor No No
Screen space comparison
Legion 7i Gen 6 16" (2021, Intel)
16″ (16:10 ratio) = 115.1 in2
Alienware m15 R7
15.6″ (16:9 ratio) = 104 in2
~10% more screen space
Display tests
Contrast 1200:1 1000:1
sRGB color space 100% 100%
Response time - 3 ms
Max. brightness


Voltage - 13.2 V
Full charging time - 2:00 hr
Battery type Li-Po Li-Ion
Replaceable No No
Fast charging Yes Yes
USB Power Delivery Yes Yes
Charging port position Bottom Bottom
Charge power 230 / 300 W 180 / 240 W


CPU name
Base frequency 1.9-2.3 GHz 2.3 GHz
Turbo frequency 4.6 GHz 4.7 GHz
Cores 8 14 (6P + 8E)
Threads 16 20
L3 Cache 24 MB 24 MB
Integrated GPU Intel UHD Graphics for 11th Gen (32 EU) Intel Iris Xe Graphics (96EU)
Fabrication process 10 nm 10 nm


Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

Graphics Card

GPU name
TGP 130 W 95 W
Nvidia Optimus MUX Yes, Advanced Optimus
Type Dedicated Dedicated
Fabrication process 8 nm 8 nm
GPU base clock 1504 MHz 1463 MHz
GPU boost clock 1802 MHz 1695 MHz
Memory size 6 GB 4 GB
Memory type GDDR6 GDDR6
Memory bus 192 bit 128 bit
Memory speed 14 Gbps 12 Gbps
Shading units (cores) 3840 2560
Texture mapping units (TMUs) 120 80
Raster operations pipelines (ROPs) 48 48
GPU performance


RAM size
Channels 2x8 GB 1x8 GB
Clock 3200 MHz 4800 MHz
Type DDR4 DDR5
Upgradable Yes Yes
Total slots 2 2
Max. ram size 32 GB 64 GB


Storage size
Bus PCI-E Gen 4.0 (4x) PCI-E Gen 4.0 (4x)
Storage type SSD (M2) SSD (M2)
Channels 1x512 GB 1x256 GB
Upgradable Yes Yes
Total slots 2 2
NVMe Yes Yes


Audio chip Realtek ALC3306 Realtek ALC3254
Speakers 2.0 2.0
Power 2x2W 2x2.5W
Dolby Atmos Yes Yes
Microphones 2 2


Wi-Fi standard v6 v6E
Bluetooth v5.1 v5.2
Fingerprint No No
Infrared sensor No Optional
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1280 x 720 1280 x 720
USB-A 3x USB 3.2 2x USB 3.2
USB Type-C 3x USB 3.2 1x USB 3.2
Thunderbolt Thunderbolt 4 Thunderbolt 4
HDMI 1x HDMI 2.1 1x HDMI 2.1
DisplayPort No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) Yes Yes
SD card reader No No
Proprietary charging port Yes Yes


Keyboard type Island Mechanical
Numpad Yes No
Backlight Yes Yes
Key travel 1.3 mm 1.7 mm
Size 12.0 x 7.5 cm 10.5 x 6.0 cm
Surface Glass Plastic
Windows Precision Yes Yes
Further details
Notes on Alienware m15 R7:
    - Thunderbolt 4 is available on models with RTX™ 3060, 3070 Ti, or 3080 Ti.
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.

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