freebsd stable - Jan 2009 - Intel Mobo MARVEL RAID adapters and amd64 FreeBSD on QuadCore and i7 series Processors

These show up under Windows XP as if they are SCSI adapters (they're 
not, obviously.)

Has there been any view towards supporting these on FreeBSD?  They're on 
all the recent Intel motherboards for the last year and a half or so.

Also, is there any particular benefit (or penalty) to running the amd64 
build on Quad-Core or i7-series processors?  I have an app that might 
benefit from access to more than 4GB of physical RAM as the working 
dataset grows but am hesitant to run the 64bit version on that processor 
(which I understand isn't REALLY a 64-bit chip) if I'm going to run into
a penalty for doing so in terms of generalized performance.

-- 
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Karl Denninger
karl@denninger.net