HP 4720S manual Memory speed is processor dependent

QuickSpecs

HP ProBook 4520s Notebook PC HP ProBook 4720s Notebook PC

Standard Features (availability may vary by country)

Graphics	Integrated graphics (HP ProBook 4520s only):
	Intel HD Graphics
	Discrete graphics:
	ATI Mobility Radeon HD 4350 graphics controller with 512 MB dedicated video memory
	Microsoft DirectX 10.1 (discrete),10 (integrated) capable
Display	Internal	HP ProBook 4520s:
		15.6-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution)
		15.6-inch diagonal LED-backlit HD BrightView (1366 x 768 resolution)
		HP ProBook 4720s:
		17.3-inch diagonal LED-backlit HD+ anti-glare (1600x900 resolution)
		17.3-inch diagonal LED-backlit HD+ BrightView (1600x900 resolution)
		Optional HP Privacy Filter
	External	Up to 32-bit per pixel color depth
		VGA port supports resolutions up to 1600 x 1200 at 75 Hz, and lower
		resolutions at up to 100 Hz.
		HDMI port supports direct connection to high-definition displays with up to
		1920 x 1080 resolution and 7-channel audio with one convenient cable (not
		included).
		NOTE: Resolutions are dependent upon monitor capability, and resolution
		and color depth settings.
Memory	Standard	DDR3 PC3-10600 SDRAM (1333 MHz)*
		Two SODIMM slots supporting dual-channel memory
		1024 MB and 2048 MB SODIMMs
		Standard memory up to 4096 MB
	Maximum	Upgradeable to 8192 MB with optional 4096 MB SODIMMs in slots 1 and
		2
	Dual-channel	Maximized dual-channel performance requires SODIMMs of the same size
		and speed in both memory slots.

* Memory speed is processor dependent.

NOTE: Due to the non-industry standard nature of some third-party memory modules, we recommend HP branded memory to ensure compatibility. If you mix memory speeds, the system will perform at the lower memory speed. Full availability of 4 GB or more of memory requires Windows Vista Business 64-bit or Linux. With Windows 32-bit operating systems, the amount of usable memory is dependent upon your configuration, so that above 3 GB all memory may not be available due to system resource requirements.

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