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Re:Nim Community Survey 2019 Results by gavinray on Sunday February 23, 2020 @11:29PM (#22401651)
Entirely reasonable doubt, you can find well-commented benchmark output of the Laser High-Performance Computing lib and Arraymancer lib in their source:

https://github.com/numforge/laser/blob/d1e6ae6106564bfb350d4...

https://github.com/mratsim/Arraymancer/blob/6fddfa9a734ac01c...

To qualify the statement, it would be more accurate to say that Nim can smoke C by several orders of magnitude unless you devote significant engineering efforts into replicating the equivalent Nim (as Nim targets C/C++ regardless, so this is just heavy lifting and optimizations)

Re:Nim Community Survey 2019 Results by nimmer on Monday February 24, 2020 @08:30AM (#22403791)
While all you say is true, "on order of magnitude" mean 10x and "several orders of magnitude" mean 1000x or more.