Today I managed to overclock the graphics controller of my Acer Ferrari One, the method should work for all netbooks or notebooks with the RS780-chipset. The Windows performance index increased from 4.9 to 5.1 in game performance, 3DMark2006 increased to 1396 3DMarks (with 610Mhz/1380Mhz GPU/CPU-clock).

Use it at your own risk! Read more after the break!

You need to install 2 tools for overclocking the GPU and checking the correct clockspeed:

AMD GPU Clock Tool v.9.26.0

AMD Overdrive

After the installing process you need to start those 2 programs. Then you choose the desired clock speed in the AMD GPU clock tool by entering the clock-value with your keyboard and click the button Set clocks:

After that the GPU clock tool will display a incorrect value:

You have to look up the correct clock-speed in AMD Overdrive:

That´s all… More benchmarks to follow…
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UPDATE: Some more benchmarks:

3DMark 2001 with 645 Mhz GPU- / 1380Mhz CPU-clock:
6954 3DMarks (5710 with stock clocks)

3DMark 2006 with 645 Mhz GPU- / 1380Mhz CPU-clock:
1424 3DMarks (1084 with stock clocks)
SM 2.0 Score 467 (363)
SM 3.0 Score 592 (434)
CPU Score 1002 (859)