diff --git a/docs/reference/gtk/gtk4-rendernode-tool.rst b/docs/reference/gtk/gtk4-rendernode-tool.rst
index a01b6b58e4..879112cde5 100644
--- a/docs/reference/gtk/gtk4-rendernode-tool.rst
+++ b/docs/reference/gtk/gtk4-rendernode-tool.rst
@@ -12,9 +12,10 @@ SYNOPSIS
 --------
 |   **gtk4-rendernode-tool** <COMMAND> [OPTIONS...] <FILE>
 |
+|   **gtk4-rendernode-tool** benchmark [OPTIONS...] <FILE>
 |   **gtk4-rendernode-tool** info [OPTIONS...] <FILE>
-|   **gtk4-rendernode-tool** show [OPTIONS...] <FILE>
 |   **gtk4-rendernode-tool** render [OPTIONS...] <FILE> [<FILE>]
+|   **gtk4-rendernode-tool** show [OPTIONS...] <FILE>
 
 DESCRIPTION
 -----------
@@ -50,3 +51,31 @@ The name of the file to write can be specified as a second FILE argument.
 
   Use the given renderer. Use ``--renderer=help`` to get a information
   about poassible values for the ``RENDERER``.
+
+Benchmark
+^^^^^^^^^
+
+The ``benchmark`` command benchmarks rendering of a node with the existing renderers
+and prints the runtimes.
+
+``--renderer=RENDERER``
+
+  Add the given renderer. This argument can be passed multiple times to test multiple
+  renderers. By default, all major GTK renderers are run.
+
+``--runs=RUNS``
+
+  Number of times to render the node on each renderer. By default, this is 3 times.
+  Keep in mind that the first run is often used to populate caches and might be
+  significantly slower.
+
+``--no-download``
+
+  Do not attempt to download the result. This may cause the measurement to not include
+  the execution of the commands on the GPU. It can be useful to use this flag to test
+  command submission performance.
+
+
+
+
+