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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 231.80+1.7%Jan 16 3:59 PM EST
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To: Charles Gryba who wrote (88191)9/16/2002 7:52:32 PM
From: pgerassiRead Replies (1) of 275872
 
Dear Charles:

P3 & P4 have a 36 bit addressing bus but, most NBs only implement 32 bits. Besides, anything above
32 bits is "virtual" memory to almost all x86-32 code. EV6 could address >40 bits (64 bit RISC
Alpha uses it), so socket A already has the capability. Hammer starts with 40 bits physical and
48 bits virtual.

CPU family Physical Virtual
P3 32 36
P4 32 36
Xeon 32 36
Athlon XP/MP 32 36
Alpha EV6 40? 48?
Hammer 40 48

Pete
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