AT&T Samsung Captivate (Galaxy S) overclocked to 1.2 GHz
The 1 GHz ‘Hummingbird’ processor inside all the Galaxy S versions is a pretty good mobile processor, if not the best out there at this time. This goes for AT&T’s Samsung Captivate too, naturally.
If you have the Captivate and somehow think that 1 GHz simply isn’t enough for you, there’s now a way to see how your Android-powered beast will perform with the CPU clocked at 1.2 GHz.
Reports indicate that it is theoretically possible to overclock the Hummingbird all the way up to 1.6 GHz and still retain some stability, but no one has dared go that far yet.
Anyway, the 1.2 GHz-enabling custom kernel is apparently quite stable, so head to this forum thread to read all the details and give feedback. All the possible issues you’d encounter are listed there, so make sure you know the risks and understand what you’re doing. As always, if things go wrong, no one will be responsible but you.