Compare models
Spec
Dell Inspiron 3521
Lenovo ThinkPad T431s
Dell Alienware m15 R5 (Ryzen Edition)
Dell Alienware M15 R7
Summary
LB Score
19
15
75
83
★
Value
18
9
85
★
69
Price
$109
★
$139
$590
$1,111
Use class
Budget Surf
Budget Surf
Mid Gaming
Premium Gaming
Screen
Diagonal
15.6
14
15.6
15.6
Resolution
1366x768
1366x768
1920x1080
2560x1440
Panel type
—
tn
ips
ips
Brightness
—
—
—
—
Screen quality
45
45
50
58
★
Processor & graphics
CPU score
8
8
74
80
★
GPU type
iGPU
iGPU
dGPU
dGPU
GPU score
2
0
78
83
★
GPU rating
—
—
34%
36%
★
Memory
RAM (max)
8 GB
16 GB
32 GB
64 GB
★
RAM type
DDR3
DDR3
DDR4
DDR5
Storage
Storage (bus)
—
—
PCI-E Gen 4.0 (4x)
PCI-E Gen 4.0 (4x)
Battery
Capacity (Wh)
40.0 Wh
48.0 Wh
56.0 Wh
56.0 Wh
Autonomy (est.)
1.4 h
4.2 h
★
1.9 h
1.9 h
Chassis
Weight
2.25 kg
1.70 kg
★
2.42 kg
2.60 kg
Type
Laptop
Business
Gaming
Gaming
Release year
2013
2013
2021
2022
★
Verdict
Best overall: Dell Alienware M15 R7 · wins 19 of 31 parameter rows
Why Dell Alienware M15 R7 over Lenovo ThinkPad T431s
- GPU score: 83 vs 0 (+82.8)
- Performance: 79 vs 8 (+71.7)
- CPU score: 80 vs 8 (+71.9)