A GPU-accelerated terminal emulator built with beamterm-core, using the dynamic font atlas.
Use Shift+F1 / Shift+F2 to adjust the font size on the fly.
tmux running nvim, a plain terminal and btop
- VT100/xterm-256color emulation via vt100
- Native PTY via portable-pty, spawns the user's default shell
- Color support: ANSI 16, 256-color cube, and 24-bit RGB
- Text attributes: bold, italic, underline, dim, inverse
- Wide character support: emoji and CJK characters
- Application cursor mode: compatible with TUI apps (e.g., vim, htop)
- DSR (Device Status Report): cursor position queries for ratatui and similar frameworks
Terminal emulation is handled by vt100 and portable-pty; beamterm provides
the GPU rendering layer.
cargo run -p terminal-emulator --profile release| Component | Details |
|---|---|
| CPU | AMD Ryzen AI MAX+ PRO 395 w/ Radeon 8060S |
| GPU | AMD Radeon 8060S (Strix Halo, integrated) |
| OS | Arch Linux, kernel 6.17.9 |
| Desktop | KDE Plasma (Wayland) |
| Terminal | 160x45 |
Lower is better for vtebench (ms), higher is better for kitten (MB/s).
| Test | beamterm | alacritty | kitty | urxvt | konsole |
|---|---|---|---|---|---|
| cursor_motion | 4.13ms | 6.48ms | 15.65ms | 6.94ms | 19.6ms |
| dense_cells | 13.49ms | 18.5ms | 33.26ms | 1469.88ms | 64.86ms |
| light_cells | 2.25ms | 4.03ms | 5.71ms | 5.02ms | 21.58ms |
| medium_cells | 3.39ms | 5.13ms | 10.17ms | 5.21ms | 63.02ms |
| scrolling | 172.76ms | 115.16ms | 168.14ms | 120.7ms | 151.42ms |
| scrolling_bottom_region | 171.54ms | 114.03ms | 145.88ms | 119.74ms | 151.97ms |
| scrolling_bottom_small_region | 170.93ms | 120.12ms | 144.68ms | 125.56ms | 153.74ms |
| scrolling_fullscreen | 14.61ms | 5.23ms | 14.25ms | 4.6ms | 16.03ms |
| scrolling_top_region | 175.75ms | 120.49ms | 146.28ms | 131.34ms | 153.6ms |
| scrolling_top_small_region | 172.4ms | 119.92ms | 144.57ms | 132.88ms | 153.08ms |
| sync_medium_cells | 4.05ms | 5.93ms | 18.79ms | 5.47ms | 66.15ms |
| unicode | 293.74ms | 4.03ms | 580.39ms | 15533ms | 39.87ms |
| Test | beamterm | alacritty | kitty | urxvt | konsole |
|---|---|---|---|---|---|
| Only ASCII chars | 217.9 MB/s | 157.3 MB/s | 123.3 MB/s | 158.2 MB/s | 55.5 MB/s |
| Unicode chars | 224.3 MB/s | 195.5 MB/s | 130.5 MB/s | 99.4 MB/s | 82.8 MB/s |
| CSI codes with few chars | 218.9 MB/s | 90.7 MB/s | 66.6 MB/s | 188.0 MB/s | 46.3 MB/s |
| Long escape codes | 584.2 MB/s | 182.4 MB/s | 332.5 MB/s | 92.4 MB/s | 82.3 MB/s |
| Images | 469.8 MB/s | 518.9 MB/s | 316.9 MB/s | 200.9 MB/s | 37.4 MB/s |