4 ms·

How so, if iPhone XS is faster than iMac Pro on Speedometer 2.0? https://twitter.com/dhh/status/1043277162676072449 https://twitter.com/dhh/status/1043277162676

• opencl 8y ago
  Running a Javascript benchmark and not even specifying which browser was used is not a great way to compare CPUs. It's also entirely single threaded. Geekbench for example puts the A12 about 15% above the 8650U in single threaded performance and 9% below it in multithreaded performance. I would say that is pretty close to U-series performance. https://browser.geekbench.com/processors/2064 https://browser.geekbench.com/processors/2064 https://browser.geekbench.com/ios_devices/55 https://browser.geekbench.com/ios_devices/55
  • k_bx 8y ago
    You are shifting a point of conversation. The point is, they are comparable and should be compared. Single-threaded is an important comparable point.
    • opencl 8y ago
      But if you're talking about desktop vs laptop performance, single thread performance is very similar and the only large difference is multithreading where desktop chips are something like 2-4x faster. If somebody is saying that it's more similar to laptop chips than desktop chips, the only reasonable interpretation of that is talking about multithreading performance. Sure it's 'comparable' to the iMac Pro if the comparison you want to make is that it is 1/4 as fast.