Original URL: http://www.reghardware.co.uk/2006/07/06/amd_socket_am3_compatibility/
AMD's Socket AM3 processor interconnect will be forwards compatible with Socket AM2, allowing today's AM2-based boards to host AM3-equipped CPUs, the chip maker has revealed. That said, AM3 mobos will not, apparently, accept AM2 processors.
So claims a DailyTech report (http://www.dailytech.com/article.aspx?newsid=3169&www.reghardware.co.uk), citing recent communications between AMD and its OEM customers.
As we have reported before (http://www.reghardware.co.uk/2006/05/16/amd_debut_65nm_dec_06/), Socket AM3 is part of the DDR 3-supporting K8L architecture due H1 2008 and set to debut late 2007 in a dual-core chip, the codename of which remains unkown. This mysterious part will be followed by 'Greyhound', a 65nm quad-core Athlon 64 part - branded 'X4', presumably. The Athlon 64 FX version, due later in H1 2008, is codenamed 'Cadiz'.
The new archicture's integrated memory controller is believed to support both DDR 2 and DDR 3 - but not, AMD's OEM documentation states, on the same motherboard. K8L will also run on a HyperTransport 3 system bus. ®
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http://www.reghardware.co.uk/2007/09/14/amd_ddr3_in_phenom/
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http://www.reghardware.co.uk/2006/09/26/micron_unveils_1gb_ddr3/
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http://www.reghardware.co.uk/2006/07/17/amd_reverse_ht_not_real/
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http://www.reghardware.co.uk/2006/07/10/amd_roadmap_07/
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http://www.reghardware.co.uk/2006/06/28/amd_fbdimm_support_plan/
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http://www.reghardware.co.uk/2006/06/26/amd_new_york_fab/
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http://www.reghardware.co.uk/2006/06/23/amd_intel_serve_subpoenas/
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http://www.reghardware.co.uk/2006/06/23/amd_ceo_says_next-gen_in_2008/
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http://www.reghardware.co.uk/2006/05/16/amd_debut_65nm_dec_06/
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http://www.channelregister.co.uk/2006/04/04/amd_fab_36_revenue_shipments/
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http://www.reghardware.co.uk/2006/04/04/amd_k8l_roadmap/