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What makes a chip truly 64-bit?
majormatt
Posted:
October 23, 2002 8:57PM
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General Discussion
edited January 2014
Someone today argued that current chips (X86 and PPC) are considered 64-bit microproccessors, but I dont believe this to be true. They are classified as 32-bit because of the registers, right?
And the PPC970 will hace 64 bit registers?
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Reply 1 of 3
kecksy
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October 23, 2002 9:07PM
A CPU is generally called 64-bits if it can address several terabytes of memory and has 64-bit integer registers.
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majormatt
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October 23, 2002 9:15PM
So, X86 have just 32-bit integer registers until AMD's hammer?
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kecksy
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October 23, 2002 9:22PM
[quote]Originally posted by MajorMatt:
<strong>So, X86 have just 32-bit integer registers until AMD's hammer?</strong><hr></blockquote>
Yes, that and 36-bit memory addressing.
Hammer will have 64-bit integer registers and 64-bit memory addressing.
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Comments
<strong>So, X86 have just 32-bit integer registers until AMD's hammer?</strong><hr></blockquote>
Yes, that and 36-bit memory addressing.
Hammer will have 64-bit integer registers and 64-bit memory addressing.