Linked by Jordan Spencer Cunningham on Wed 7th Oct 2009 19:15 UTC, submitted by JayDee
Windows Microsoft has been thinking about Windows 8 for a while now even through the production of Windows 7. Some information has been gathered by our friends over at Ars, and all of this said information points to possible 128-bit versions of Windows 8 and definite 128-bit versions of Windows 9. Update: Other technophiles better-versed than I in this whole 64/128-bit business pointed out that it must be for the filesystem (such as ZFS described in this article) rather than the processor and memory scheme.
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Advantages?
by Praxis on Wed 7th Oct 2009 19:31 UTC
Praxis
Member since:
2009-09-17

Does anyone know what the advantage a 128 bit system has over a 64 bit system? I was under the impression that we had not yet even come close to making full use of a 64 bit system, so where would the use of 128 bit system show improvements.

Reply Score: 2

RE: Advantages?
by systyrant on Wed 7th Oct 2009 19:35 in reply to "Advantages?"
systyrant Member since:
2007-01-18

Well, you can address more memory I suppose.

Reply Parent Score: 3

RE[2]: Advantages?
by panzi on Wed 7th Oct 2009 21:01 in reply to "RE: Advantages?"
panzi Member since:
2006-01-22

Well and a lot of your data (at least the pointers) are suddenly twice as big: you *need* more memory! Using < 4GB RAM with a 64bit OS gives less usable memory than with a 32bit OS. Only if you have significantly more than 4GB RAM 64bit has advantages memory wise. AMD64 has other advantages though: "better" assembler and twice as much registers -> this property should be faster. But bigger pointers = more memory to copy = slower memory operations. So some things are better with 64bit, some aren't.

Reply Parent Score: 1

RE: Advantages?
by jgagnon on Wed 7th Oct 2009 19:58 in reply to "Advantages?"
jgagnon Member since:
2008-06-24

An advantage of a 128 bit system over a 64-bit system would be the ability to natively process 128-bit numbers, which would speed up things like 128-bit file systems. Other than that, you get more potential address space for your programs. Which is dumb considering it would take a very long time for current systems to copy the equivalent of the contents of a full 64-bit address space (even at speeds of 1 TB per second it would take 213 days to read it all).

We seriously need to solve the problem of memory speed before we tackle memory limits higher than 64-bit.

Reply Parent Score: 2

RE[2]: Advantages?
by andrewg on Wed 7th Oct 2009 21:44 in reply to "RE: Advantages?"
andrewg Member since:
2005-07-06

Its funny just thinking about the absurdity of even posting a story about how Microsoft is developing a 128bit OS for Windows 8 or 9 which according to their own plans would be in 6 years at most.

Reply Parent Score: 2

RE[2]: Advantages?
by license_2_blather on Thu 8th Oct 2009 03:08 in reply to "RE: Advantages?"
license_2_blather Member since:
2006-02-05

"We seriously need to solve the problem of memory speed before we tackle memory limits higher than 64-bit."

That would be the primary reason in my mind for a move to >64 bit. Modern GPUs have 256- and even 512-bit wide memory buses (I don't know about addressing though).

Better from a board design standpoint is to get higher-speed, narrower interconnects as you noted.

Reply Parent Score: 1