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A comment on Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Development. Parent comment

Re:Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Develop... by klelatti on Monday December 14, 2020 @01:06PM (#25420902)
What do you mean by somewhat compatible? Why fragmentation when Arm sets the ISA standard?
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Re:Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Develop... by nitrogen on Monday December 14, 2020 @01:10PM (#25420955)
The base ISA is set by ARM, but every vendor has their own set of features turned on or off, and their own extensions, and potentially their own way of laying out memory mapped IO and identifying peripherals.
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Re:Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Develop... by klelatti on Monday December 14, 2020 @01:16PM (#25421031)
Every vendor does not have their own set of extensions. Different x86 chips have different extensions (from a pre-defined set) - I don't see panic about x86 fragmentation.
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Re:Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Develop... by greatpatton on Monday December 14, 2020 @01:33PM (#25421243)
It's not panic but this is really annoying like with AVX-512. The side effect is that people are making choice for the target architecture.
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Re:Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Develop... by xxpor on Monday December 14, 2020 @01:28PM (#25421178)
Is there any difference between AMD and Intel these days in terms of instructions other than AVX512?
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Re:Apple M1 vs. Ryzen 3900X vs. Intel I9 in Software Develop... by klelatti on Monday December 14, 2020 @01:32PM (#25421228)
Not aware of any but there are significant extension variations even within Intel e.g. lack of AVX on Atom.
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