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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Joe NYC who wrote (94316)2/20/2000 3:49:00 AM
From: dumbmoney  Respond to of 1573102
 
Is the 64 bit processor going to derive any benefit from the fact it is 64 bit, or is the main benefit purely ability to address more memory.

On other 64-bit CPUs (e.g. Alpha), and presumably also for Itanic, 64-bit address programs run slightly slower than 32-bit programs, due to cache effects.



To: Joe NYC who wrote (94316)2/20/2000 11:07:00 AM
From: Scumbria  Read Replies (1) | Respond to of 1573102
 
Joe,

Is the 64 bit processor going to derive any benefit from the fact it is 64 bit, or is the main benefit purely ability to address more memory.

Programs that are bandwidth limited will benefit from a true 64 bit datapath through a processor. Not many processors have a true 64 bit datapath, and not many programs are bandwidth limited however.

Scumbria


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