Update GPU Overclocking page

- Add LACT
    - Add Unigine benchmarks
    - Modify CoreCtrl

pages/02.linux/overclocking/gpu/default.en.md

@@ -4,13 +4,29 @@ visible: true
 ---
 
 [toc]
-## Overclocking
-### AMD
-[CoreCtrl](https://gitlab.com/corectrl/corectrl) allows the manipulation of GPU frequency, voltages, power and the fancurve.  
 
-*TODO* installation hints  
+## Overclocking
+
+### AMD
+
+#### CoreCtrl
+
+[CoreCtrl](/linux/overclocking/monitoring#corectrl) allows the manipulation of GPU frequency, voltages, power and the fancurve.
+
+_Note: CoreCtrl worked for me with an RX 480, but not with an RX 6600 XT_
+
+#### LACT
+
+[LACT](https://github.com/ilya-zlobintsev/LACT)
 
 ## Testing
-> [More Testing Tools can be found on the ArchWiki](https://wiki.archlinux.org/title/Stress_testing?useskinversion=1)  
 
-*TODO*  
+> [More Testing Tools can be found on the ArchWiki](https://wiki.archlinux.org/title/Stress_testing)
+
+### Unigine Benchmarks
+
+- unigine-heaven
+- unigine-valley
+- unigine-tropics
+- unigine-superposition
+- unigine-sanctuary