When comparing BlackArch vs Garuda Linux, the Slant community recommends Garuda Linux for most people. In the question“What are the best Arch Linux based distributions?” Garuda Linux is ranked 7th while BlackArch is ranked 8th. The most important reason people chose Garuda Linux is:
Uses vram, and a zen kernel.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Large repository
As of Feb. 26th, 2020 there are 2460 tools in the repository.
Pro Live session
You can run the OS from a LiveUSB.
Pro Better than ArchStrike
Contains many more tools than ArchStrike and far easier installation than ArchStrike
Pro Arch-based
BlackArch is just normal Arch with tons of tools preinstalled
Pro Suitable for professionals
Pro Super-fast
Uses vram, and a zen kernel.
Pro Themes
The dr460nized KDE theme is awesome.
Pro Easy entrance to Arch Linux
Filled to the brim with lots of quality-of-life changes and optimizations that are simple enough for long-time Windows, long-time Mac users, and Arch newbies to understand. Though, it also leads to bloat or not necessarily helpful extra software. If you're not into the "bloat" added in, try checking out the barebones version, you'll need to know a lot of things bout Arch to fully use barebones.
Pro Highly customized interface
You already have most of the customization done for you out of the box.
Pro Unused RAM is wasted RAM
It takes just a bit more RAM than Manjaro. Edit: This statement is only true if it helps the user and since this could be running on a low end machine this will not.
Cons
Con Not beginner-friendly
Not great for newbies.
Con Needs a lot of RAM
Minimum is 4GB, for most Linux distributions it's 2GB or less.