diff --git a/BasiliskII/src/MacOSX/video_macosx.h b/BasiliskII/src/MacOSX/video_macosx.h
index e0fd8dd4..e06757cd 100644
--- a/BasiliskII/src/MacOSX/video_macosx.h
+++ b/BasiliskII/src/MacOSX/video_macosx.h
@@ -27,9 +27,10 @@
 #define CGIMAGEREF
 //#define NSBITMAP
 
-// Using Core Graphics is fastest when rendering 32bit data. Rendering CGImageRefs
-// allows us to use all the bitmaps that BasiliskII supports. When both Basilisk II
-// and OS X are set to 'Thousands', it can achieve over 500fps in a 312x342 window!
+// Using Core Graphics is fastest when rendering 32bit data.
+// Using CGImageRefs allows us to use all the bitmaps that BasiliskII supports.
+// When both Basilisk II and OS X are set to 'Thousands', updating a 312x342
+// window happens at over 500fps under 10.2, and over 600fps on 10.3!
 
 /* When the BasiliskII video driver respects the alpha bits, set this to let us use */
 /* kCGImageAlphaPremultipliedFirst, and to have nice rounded corners on the screen. */