Re: GNAT Speed Comparison on Older Intel versus Apple Silicon M1

[Fernando Oleo Blanco <irvise_ml@irvise.xyz>]

Hi Jerry,

taking the results from Geekbench: [1] for your current MacBook and [2] 
for the M1 MacBook from 2021; the results show that single core 
performance of the M1 MacBook Pro is about 6.4 times faster.

However, notice that it is running on Aarch64 natively for the M1. 
Nonetheless, you can run x86 programs with little performance hit thanks 
to Apple Rosseta.

Also, GNAT afaik, allows for parallel computations using tasks. The 
multicore performance gain between the two models is about 24x.

There results are however just an average. Maybe your program does not 
see such improvements as it may bottleneck earlier or it may see greater 
gains.

Regards,

[1] https://browser.geekbench.com/macs/macbook-pro-early-2008
[2] https://browser.geekbench.com/v5/cpu/18518008

-- 
Fernando Oleo Blanco
https://irvise.xyz