When comparing z/Scope Terminal Emulator vs Alacritty, the Slant community recommends Alacritty for most people. In the question“What are the best terminal emulators for Windows?” Alacritty is ranked 12th while z/Scope Terminal Emulator is ranked 24th. The most important reason people chose Alacritty is:
Written in Rust with a philosophy focusing on speed and simplicity, Alacritty is one of the fastest terminal emulators out there.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports tabs, making for easier navigation
z/Scope supports tabs and tab-based navigation.
Pro Affordable
Licenses are permanent. Price starts at $46. First year support is free. Continuing subscription, it's not mandatory to renew maintenance services.
Pro Host Access
It supports IBM TN3270E / TN3270 emulation, IBM TN5250E, UNIX VT100-420, SSH and secure FTP integration.
Pro Cross OS
Windows and Web-based editions.
Pro Blazing fast rendering with GPU-accelerated
Written in Rust with a philosophy focusing on speed and simplicity, Alacritty is one of the fastest terminal emulators out there.
Pro Looks good
Alacritty looks very slick on Linux, especially with GNOME or i3.
Pro Simple configuration
The configuration file is very well made and easy to use. You can fine tune your preferences to perfection in a matter of minutes.
Pro Comprehensive font options
Alacritty can be configured to adjust line spacing (height), letter spacing (width), and individual character horizontal/vertical positions.
Pro Has support for image previews in w3m and ranger
Pro Has text ref-low when window is resized
Pro Fast and simple but with true color support
It's simple and fast like xterm or urxvt but with truecolor support which is a big plus if you use a terminal based code editor. Basically Alacritty has all the features you need and nothing you don't (if you're using tmux for multiplexing).
Cons
Con Not free
z/Scope is not free.
Con Cannot into ligatures
Alacritty does not support ligatures in Fira Code, Iosevka etc.
Con Unreliable Font Rendering
Like a box of chocolate you never know what you're going to get.
Con Sacrifices basic features for raw performance
The Suzuki GSXR of terminals. Or your ditzy, blonde high school cheerleader; fast and pretty but not a lot going on under the hood.
Eschews a negative developmental philosophy towards including said functionality, with the official reason cited in project documentation as "Not within the realm of a terminal emulator" and ostensibly, "best left up to other tools such as terminal multiplexers" [such as screen or tmux]. Which is unfortunate when you factor in speed against terminal with the functionality built in vs their reliance on 3rd party tools:
tmux on alacritty: 'find /usr' time: 3.234s, cpu: 72%
tmux on konsole: find /usr' time: 1.777s, cpu: 96%
See issue here.