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To: kapkan4u who wrote (71749)	2/17/2002 9:57:22 AM
From: dale_laroy	Read Replies (1) \| Respond to of 275872

>The whole purpose of 64-bit extensions is to extend physical addressing. All other benefits are minor. If Yamhill does exist, it has 64-bit GPRs and addressing just like x86-64.< It will have the same logical addressing as Hammer, but there is a difference between physical addressing and logical addressing. Clawhammer has a 64-bit logical address space but only a 40-bit physical address space. Yamhill might well have a 64-bit logical address space and only a 32-bit physical address space. With Clawhammer limited to 2 DIMMs, Yamhill might very well be able to exceed Clawhammer's practical physical address space (anybody know where I can get some cheap 2GB DIMMs?). OTOH, Sledgehammer will probably support a much larger physical address space that Yamhill will not address. Yamhill would be strictly a Clawhammer competitor, not a Sledgehammer competitor.