Comparing the Systemrequirements on Steam and here on GOG are VERY different to each other... Which one is correct?

I also want to know what is the correct system requirements, as there is a big difference between the one shown in GoG and the one shown on Steam.

Just got confirmation from the developers that the system requirements shown on Steam are the correct ones (ones on GoG are not correct and will be updated):

JeffNachbaur_DE [developer]
Steam requirements are correct. We've submitted an update for the GOG requirements.

OK, thanks for the Update... These req. seams to be redicilous high, for what i've seen sofar, lol...

I'm playing this with 0 problems on an HP g121wm if that's any thing to say on the requirements

That sounds good :-). Thanks for sharing the info, drake2509!