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Old 10-17-09, 02:19 AM   #18
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Join Date: May 2005
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Default Re: Windows 8 and 9 may support 128-bit architecture

Originally Posted by Atomizer View Post
The only reason I could see a use for 128bit is more precision, not really as a speedup, and mainly for floating point stuff, which is now better done on the GPU anyway.
I mean, 63 bits can store values upto 9,223,372,036,854,775,807, thats 7 exabytes, or, 8191 petabytes, or, 8,388,607terabytes, etc, in terms of RAM/HDD space, I cant imagine anything for a long time needing that much, especially considering thats using only 63 bits, not the full 64bits, for 64bit unsigned values it would be pretty much double that amount.
As far as im aware, the largest single HDD is 2TB right now, lets say in 5 years we have 10TB drives, youd still need over 100 drives to make 1pb, and the only way youd actually need to address upto 1pb would be having them all in a raid, otherwise if they arent in a raid you only need to address 10tb, and then the drive partition that you're accessing.

So honestly the only practical use, right now, for 128bit, is higher floating point precision for scientific stuff
Which you yourself just said would be better done on GPUs. And with both AMD and nVidia pushing GPGPU in one form or another... I still cannot see any practical application for a 128 bit CPU.

Unless, of course, GPGPU of any form is a lot farther off than any of us realize. Then as you mentioned the 128-bit CPU could come in handy in a few, incredibly rare, scenarios.
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