The Real Conroe Successor: Clarkdale & All You Need to Know about Westmereby Anand Lal Shimpi on September 24, 2009 6:00 PM EST
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P55 vs. H57 Chipsets
The Lynnfield chipset is P55, it's the successor to P45 and the entire lineage of mainstream performance chipsets. The one thing P55 does not have is an integrated display interface; it has no way of connecting a CPU with on-package graphics, to a HDMI port (or VGA, or DVI).
The H57 chipset does:
Intel's display interface is a narrow bus that carries the video output from Clarkdale's on-package graphics and routes it to the video output on a motherboard.
DVI/HDMI out on a H57 mini-ITX motherboard
Why not give all chipsets video out support? Intel is big on differentiation. The P55 chipset is a bit more overclocking friendly, a set of optimizations that you won't see in H57. Both types of motherboards will take Clarkdale processors.