Overclocking IGP of Celeron N, possible?

ProDigit10

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Nov 19, 2010
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Either Linux or Windows, how can I overclock the IGP (Integrated Graphics Processor)?
I have a HP 11, with a dual core, Intel Celeron N3060.
The CPU speed is 1,6Ghz, with a 2,48Ghz boost, but the cooling of the laptop is so good, it constantly runs at 2,48Ghz.

I have no complaints about performance, but the screen it comes with has a 1366x768 resolution.
The graphics work okay-ish for older games, but can stutter with more modern games.
Modern DX 11 games only run well at 480p resolutions, if I'm lucky 720p.
I want to overclock the GPU by about 20%.