Intel PM55 is the only chipset supporting Lynnfield processors, which include the current Core i5 and Nehalem-based Core i7 notebook chips. As of now, it is selling for $40 in quantities of 1,000.
Beginning in Q1 2010, Intel plans to launch an additional chipset within the x55 mainstream series (currently just P55) as well we three new x57 chipsets. The HM55 will match the PM55 in regards to price and it will sell for $40 in quantities of 1,000. Overall, this implies that there is not much difference between the two.
The HM57 chipset, as well as QM57 chipset, will both sell for $48 each in quantities of 1,000, while the top of the offer is the QS57 chipset that will sell for $53 in quantities of 1,000. Currently, the GS45 chipset is selling for the same price of $53, but this is a chipset for the Montevina-based Core 2 Duo/Core 2 Quad platform while x55 and x57 versions are tailored for the Calpella-based Core i5 and Core i7 notebook platform.
The x57 generation of chipsets feature support for Intel's new remote PC assistant technology. Most of the chipsets have Active Management Technology (AMT) 6.0 and feature 14 USB 2.0 ports, eights PCIe 2.0 ports (probably als at half speed) and six SATA 3Gb/s ports. On the other hand, the P55 series features 12 USB ports, eight PCIe 2.0 ports at half speed and six SATA 3Gb/s ports.
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