On Fri, Oct 09, 2009 at 09:44:01PM +0100, Dean Chester wrote: > Hi > I'm moving to a Macbook soon(staying with debian tho:p) and apple keep > advertising that snow leopard can support 16 exobytes of RAM. Im just > wondering how much can 64-bit debian support? > Thanks in advance > Dean
Current x86_64 CPUs don't support 64bits of memory: They "merely" support 48 bits of it. Which means that if you want more than 256TB, of memory, you'll have to get yourself a better CPU (and I'm ignoring minor technicalities of chipset support). http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details Thus I suspect your laptop won't support 16EB with nither OS. -- Tzafrir Cohen | tzaf...@jabber.org | VIM is http://tzafrir.org.il | | a Mutt's tzaf...@cohens.org.il | | best ICQ# 16849754 | | friend -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
