# What is the fastest data type out of these?

**URL:** <https://discourse.julialang.org/t/what-is-the-fastest-data-type-out-of-these/15727>\
**Category:** General Usage\
**Tags:** question\
**Created:** [October 1, 2018, 11:03am UTC](https://discourse.julialang.org/t/what-is-the-fastest-data-type-out-of-these/15727 "2018-10-01T11:03:10Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![laborg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/laborg/32/5474_2.png) [@laborg](https://discourse.julialang.org/u/laborg)\
**Post date:** [October 1, 2018, 11:29am UTC](https://discourse.julialang.org/t/what-is-the-fastest-data-type-out-of-these/15727/11 "2018-10-01T11:29:06Z")

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> [@NamedTuples vs Dict](https://discourse.julialang.org/t/namedtuples-vs-dict/13119):
>
> I wondered about use cases of NamedTuples vs Dicts. Obviously one would choose a NamedTuple if the order of elements is important and a Dict if the keys have to be something else than a symbol, but are there any other situations where one is preferred over the other?

I wouldn’t worry about performance in the beginning. Do what you want to do, and if it’s too slow, people in this forum will certainly help you.

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