Linked by Thom Holwerda on Sat 3rd Jun 2006 16:12 UTC, submitted by anonymous
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The limitations you two are arguing are (if true) with current boards. Not with the chip architectures.
According to http://en.wikipedia.org/wiki/AMD64
"the AMD64 architecture can address up to 256 tebibytes of virtual address space (2^48 bytes)."
"Current implementations of the AMD64 architecture can address up to 1 tebibyte of RAM (2^40 bytes)" Less than 2^48, obviously, and much less than 2^64.
IIRC, the PPC64 too does not provide a complete 2^64 memory space. It's too early for most of us to begin worrying about the upper limits of current implementations of 64-bitness. Unless you're into supercomputing amounts of data.
Edited 2006-06-05 17:11




Member since:
2005-11-15
A two-socket Opteron system should easily take 16 or even 32 GB of RAM.