If you're tuning your GPU, start here..

[TheTribesman]

If you’re tuning your card this is a very good place to start.

[url=https://litecoin.info/Mining_hardware_comparison]https://litecoin.info/Mining_hardware_comparison[/url]

It gives you a target hashrate and associated settings for (amongst others):

intensity
worksize
thread-concurrency
gpu-engine
gpu-memclock
gpu-powertune
gpu-vddc

Don’t stay up too late!
:)