16-inch MBP 2x slower than M1 MacBook Air in a real-world Rust compile

Re:16-inch MBP 2x slower than M1 MacBook Air in a real-world... by sitkack on Tuesday November 17, 2020 @04:16PM (#25129966)

The ISA differences between ARM and x86 do not account for the difference in performance, there are multiple factors here (process, ssd, memory bandwidth, cache, thermal reservoir, etc).

While this is wonderful for ARM in the now-term, we just moved from walled ISAs to a plurality of ISAs, compute just became a bulk commodity in a way that it could not with an x86 duopoly.

Anyone can now take off the shelf RISC-V designs that are currently at > 7.1 coremarks/mhz and get them fabbed on Glofo or TSMC. If you need integrator help, you can use the design services of SiFive.

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Re:16-inch MBP 2x slower than M1 MacBook Air in a real-world... by unsigner on Tuesday November 17, 2020 @04:27PM (#25130113)

There’s not a shred of evidence RISC-V can approach the levels of performance discussed in this thread. There’s a lot of “big implementations can potentially do X” hand waving in RISC-V land, and not much real silicon to show for it.

[ Parent | on HN ]