For people who have problem with running Witcher on notebooks with 2 GPUs, where game runs only on Intel integrated GPU and refuse to run on dedicated (more powerfull) GPU here is solution :
I have notebook with GF765m and intel HD4600

1. start regedit
2. go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\
3. on RequireSignedAppInit - change value to 0
4. go to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Windows
5. create the new file DDWORD with name RequireSignedAppInit_DLLs - value 0
6. close regedit

found it on Dragon age forum after one hour digging and it works for me .

I have a 755m, I wonder how good the game work for you...

When I pre-oreder the game few months ago I did not dream I will be able to play the game on my laptop, now you give me a good news, thanks.

From what I can tell the GTX 755M is basically a 384 shader version of my GTX 750 (512 shaders). I don't think you will get particularly good results at 1920x1080 (I get around 27FPS around here), but at lower resolutions, you may find this game quite playable.

I think the posted minimum requirements are actually far too high. I've seen games with lower minimum requirements that perform considerably poorer. It's like they were trying to really guarantee the player a very good experience even at the minimum settings, but because people are so ingrained to believe the minimum requirements = poor performance, everyone thinks they need to upgrade their computers.

The game isn't actually that demanding and I think a few laptop users will actually be pleased to find that it does actually run on their system reasonably well despite what the requirements say.