When comparing Puppy Linux vs Linux Lite, the Slant community recommends Puppy Linux for most people. In the question“What are the best Linux distributions for misanthropes?” Puppy Linux is ranked 14th while Linux Lite is ranked 34th. The most important reason people chose Puppy Linux is:
Puppy Linux requires 128MB of RAM and 333Mhz of CPU, although 256MB of RAM is recommended.
Specs
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Pros
Pro Extremely low minimum system requirements
Puppy Linux requires 128MB of RAM and 333Mhz of CPU, although 256MB of RAM is recommended.
Pro The whole OS runs off of RAM
Since Puppy Linux is completely loaded and run off of RAM instead of HDD, it's read/write speed is not a factor.
Pro Designed to run as a live USB/CD
A portable version, that can be carried on a thumb drive without requiring installation, weighs less than 100MB; a Live CD - less than 150MB. You can even save your settings and files for Puppy on the external device/media.
Running off a live CD also has security benefits, as your system will reset to the known config after each boot.
Pro Different distro based versions available
Puppy Linux offers a few different releases.
The first is an Ubuntu based release called Tahrpup, by using this version the user is able to take advantage of all software and support from Ubuntu.
The second version is called Slacko, which is built upon the Slackware binaries.
The third is called Wary and it is built to support older hardware than the rest.
And the fourth is called Quirky, which is used as a base to explore new ideas.
Pro Linux distro designed for this exact purpose
Pro Offers a long term support release
Puppy Linux offers an LTS release called Precise.
Pro It can be the only distro that works
Sometimes, Puppy Linux is the only distro that works on an old machine: all other distros are more demanding.
Pro JWM used as window manager
JWM is a low resource window manager that is used in most Puppy Linux installs.
Pro Beginner friendly
Linux Lite renames software it comes bundled with to be more user-friendly, it gives suggestions on what additional software the user might be interested, support on how to keep the system up to date, etc. It should especially be familiar to Windows users, since the desktop layout and the basic way you interact with it is similar.
Pro Windows-alternative
It is extremely easy for a Windows user to get along with this OS.
Pro Based on XFCE
Linux Lite is based on XFCE. It makes Linux Lite extremely appropriate for old hardware without any compromise in features. Linux Lite is also loaded with lightweight apps which ensure smooth workflow.
Pro Good performance
Even on an old machine Linux Lite perform most everyday operations quickly and without stability issues.
Pro Works well with under 4 Gb RAM
Linux Lite seems to bring to life machines with 2-4 Gb RAM. There must be something that adjusts when it sees lower specs.
Pro Active forum and helpful community
The forum is pretty active and community is very friendly and helpful. The creator of Linux Lite itself is active on the forum and helps to get problem sorted out.
Pro Highly customizable
Linux Lite is a highly customizable OS. Background, icons, panel location, panel appearance, menu appearance and almost everything else you can imagine.
Pro Has an efficient Update Manager
Updating Linux Lite is made a breeze by Update Manager.
Cons
Con A bit ugly
Using puppy makes you feel like you just jumped 20 years into the past. Being that the purpose of Puppy Linux is to run or really low resource machines the software used is often on the older side, which is precisely why it has a 20 year old look.
Con Not as light as it used to be
It's light, but not as light as it was 1-2 years ago.
Con Smallest software library ever
You can barely find any precompiled packages for Puppy.
Con No built in compositing
Being a low resource distro there is zero built in compositing for the JWM window manager. Though one can be added through a bit of work.
Con Working with local files can be messy
All XFCE distros are known for having little bugs here and there but Linux Lite takes the cake as local HTML files get executed as if they were shell scripts instead of being opened on Firefox.
Con Not compatible with UEFI
Linux Lite is not compatible with UEFI. You have to enable Legacy Mode to install Linux Lite. Which makes this OS a little behind latest OS.