Dell Alienware M17x R4 (Early 2012) - Manual (Page 4)

Audio
Controller Intel High-Definition 5.1 surround sound audio
Speaker dual 8-ohms speakers in both the left and right
speaker assembly
Internal speaker amplifier up to 5 W per channel; up to 10 W total power
Internal microphone
support dual array digital microphone in camera assembly
Volume controls program menus and keyboard media control keys
Video
Video controller
Integrated • Intel HD Graphics 3000
• Intel HD Graphics 4000
Discrete • NVIDIA GeForce GTX 660M
• NVIDIA GeForce GTX 675M
• AMD Radeon HD 7970M
Video memory
Integrated 512 MB dedicated video memory (for total system
memory greater than 4 GB)
Discrete 2 GB
External display support HDMI 1.4, Mini DisplayPort 1.2, and Intel Wireless
Display (optional)
Media Card Reader
Cards supported • Secure Digital (SD) memory card
• Secure Digital Input/Output (SDIO) card
• Secure Digital Extended Capacity (SDXC) card
• MultiMedia Card (MMC)
• MultiMedia Card plus (MMC+)
• Memory Stick
• Memory Stick PRO
• xD-Picture Card (type - M and type - H)
• Hi Density-SD (SDHD)
• Hi Capacity-SD (SDHC)