Active 3 years, 2 months ago. Viewed 61k times. Improve this question. Community Bot 1 1 1 silver badge. Bacteria Bacteria 7, 10 10 gold badges 48 48 silver badges 62 62 bronze badges. By the name of Intel processor family. Because time-machines are not real. The term x32 did not surface until x64 got well established.
It still doesn't describe an architecture, it is an abi. Hans: Doesn't it describe an ISA? Show 1 more comment. Active Oldest Votes. Improve this answer. Note that you mostly only find the term "x64" in the Windows world. Linux uses x or amd And i or i means bit x Also note that the Linux x32 ABI is bit pointers in bit mode. Add a comment. BTW gWaldo, you left out the From Wikipedia, "Both the architecture and the physical chip were therefore developed rather quickly by a small group of people, and using the same basic microarchitecture elements and physical implementation techniques as employed for the slightly older and for which the also would function as a continuation.
Yea, I left out the because I honestly couldn't remember if it had been a released product and was feeling too lazy to look it up This answer has nothing wrong, but I honestly think Daniel's should be the accepted one, as it's much more detailed.
Show 1 more comment. Later, because people are lazy, the x became known simply as the x So, in answer to your question, because x64 is shorter than x Daniel C. Sobral Daniel C. Sobral 5, 5 5 gold badges 31 31 silver badges 47 47 bronze badges. Not to nit pick but to be compltely exact, AMD never marketed a 64 bit chip.
Additionally, I believe Intel faced trademark issues because they were just using numbers and you can't trademark a sequence of numbers, that is why what would have been the became the Pentium, a made-up name that they could continue to trademark. The chip has bit instruction set and bit registers, that makes it bit chip. I don't know where you get the impression that AMD never marketed a bit chip from. It's true though, that AMD never marketed a bit that breaks compatibility with bit chip, like Intel did with its IA And calls bit x86 i It's only or at least mostly in the Windows world that x86 specifically means bit x Most hardware people talking about CPUs understand x86 to mean any CPU that's backwards-compat with , regardless of what mode its operating in normally bit long mode, or sometimes bit compat mode under a bit kernel.
Add a comment. Joel Coel Joel Coel Overmind: x64 and IA were always separate things. IA is completely unrelated to x86 or x Except that early IA implementations included an x86 core for compat reasons, because Intel Yes, that is correct. But "it's dead, Jim". ScoRpion ScoRpion 3 3 bronze badges.
The leading 80 was always there in the part number, but after it became easier just say vs. Pentium was never officially called or in its part numbers cpu-world. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete? Podcast Do polyglots have an edge when it comes to mastering programming Featured on Meta. Now live: A fully responsive profile.
Related 1. Hot Network Questions. Oron J x64 means "64 bit processors" whereas x86 means, in effect "designed for Intel processors of 32 or 64 bit architectures". I found Bruce's reply to Dalsan the clearest of all on this thread. Oron J Err, yes, both! By the way, I say "mostly" for x86 since, despite all that was said above, some software will not run properly on a 64 bit machine. This is software that works at a very low level i. Dalsan M x86 denotes 32 bit processing, and x64 denotes 64 bit processing, but does not mean that x86 is only for 32 processors; 64 bit processors are backwards compatible with 32 bit applications and software.
Drsunil V Nice answers by both Dalsan and Bruce. If you do not answer in new thread , how could I mark your answer as best? Hovsep A if there are x86 and x64 indications then yes as you said in your question Drsunil V I understand Jan F Your understanding of x86 and x64 is correct, yes. You can install a bit Windows on a bit processor and you can install a bit software within a bit operating system.
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