Dell XPS 14 (L401X, Late 2010) - Manual (Page 95)

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Specifications
Video
Integrated
Video
Controller Intel HM55
Video
Memory up to 256 MB
Discrete
Video
Controller NVIDIA GeForce GT 420M
NVIDIA GeForce GT 425M
Video
Memory 1 GB/2 GB DDR3
Display
Type 14.0‑inch HD WLED
backlight, TrueLife
Multi‑touch 14.0‑inch HD
WLED backlight, TrueLife
(Optional)
Display
Dimensions:
Height 192.50 mm (7.58 inches)
Width 324.00 mm (12.75 inches)
Diagonal 355.60 mm (14.0 inches)
Maximum
resolution 1366 x 768
Refresh rate 60 Hz
Operating
angle 0° (closed) to 135°
Horizontal
viewing angle 40/40
Vertical
viewing angle 15/30 (H/L)
Pixel pitch 0.2265 mm x 0.2265 mm