Compare models
Spec
Dell Inspiron 15 7559
Dell XPS 15 9550
Summary
LB Score
42
44
★
Value
49
58
★
Price
$426
$321
★
Use class
Mid Gaming
Mid Gaming
Screen
Diagonal
15.6
15.6
Resolution
1920x1080
1920x1080
Panel type
ips
IPS
Brightness
—
—
Screen quality
50
75
★
Processor & graphics
CPU score
47
47
GPU type
dGPU
dGPU
GPU score
24
24
GPU rating
6%
6%
Memory
RAM (max)
32 GB
32 GB
RAM type
DDR3
DDR4
Storage
Storage (bus)
—
—
Battery
Capacity (Wh)
80.0 Wh
★
56.0 Wh
Autonomy (est.)
2.8 h
★
1.9 h
Chassis
Weight
2.60 kg
1.78 kg
★
Type
Gaming
Workstation
Release year
2015
2015
Verdict
Best overall: Dell XPS 15 9550 · wins 13 of 15 parameter rows
Why Dell XPS 15 9550 over Dell Inspiron 15 7559
- Mobility: 34 vs 13 (+21)
- Build quality: 69 vs 30 (+39)
- Portability: 47 vs 22 (+24.6)
Is the $105 premium worth it?
Over 2 years, Dell Inspiron 15 7559 costs ≈ $2.0/mo more to own than Dell XPS 15 9550 — extra depreciation $1.6/mo plus $0.4/mo the $105 premium could earn at 4.16%/yr (US Treasury 3-month bill, as of Oct 30, 2026).