Merge pull request #4189 from raspberrypi/lurch-patch-6

Fix GPU clock frequencies

Author: katshann-raspberry

documentation/asciidoc/computers/config_txt/overclocking.adoc

@@ -171,7 +171,7 @@ This table gives the default values for the options on various Raspberry Pi mode
 | 500
 | 500
 | 300
-| 910
+| 960
 
 | hevc_freq
 | N/A

documentation/asciidoc/computers/processors/bcm2712.adoc

@@ -15,7 +15,7 @@ Headline features include:
 * Improved HVS and display pipeline
 ** Dual 4Kp60 support
 * VideoCore V3D VII
-** ~2-2.5× faster (more hardware, 1GHz versus 600MHz on Pi 4)
+** ~2-2.5× faster (more hardware, 960MHz versus 500MHz on Pi 4)
 ** OpenGL ES 3.1, Vulkan 1.3
 * 4Kp60 HEVC hardware decode
 ** Other CODECs run in software