Sunday, August 6, 2017

64 bit - what is the difference between x86_64 amd64 and 64 bit




what is the difference between x86_64 amd64 and 64 bit ?
I think its a stupid question but still.



I use a x86_64 bit Ubuntu, but when ever I try to do a live boot of any other 64 bit images like the gnome 3.16 released yesterday it does not work ?



Also some times when I try a virtual machine of a 64bit image it does not work either.



What is the reason for the same ?



My laptop model is an Hp Pavillion dv4 1506tx.

The processor is 2.20 GHz Intel Core 2 Duo Processor T6600



This may not solve exact problem, but I'll clarify the difference between x86_64, amd64 and 64-bit.



Every micro-processor implements an instruction set (also called instruction set architecture or ISA in short).



64-bit ISA or 64-bit processor means that the length of each instruction that the processor executes is 64 bits.



x86_64 is name of specific 64-bit ISA. This instruction set was released in 1999 by AMD (Advanced Micro Devices). AMD later rebranded it to amd64.




Other 64-bit ISA different from x86_64 is IA-64 (released by Intel in 1999).


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