I currently have a notebook with a 1.6 GHz processor and 8GB Ram. Is a higher GHz number better than a low one?
Higher is always better. However, one must pay attention to the number of cores and possibly hyper-threading (example, physically 4 cores - logical 8).
So is such a device rather unsuitable for programming or playing Minecraft?
Hz is the unit for frequencies. In the case of a processor, this is about work processes. The higher the number, the more your PC will do.
How many cores does it have? Come, as always, on your claims. I do not know your application. Minecraft actually runs on everything, but you'll have to downsize quite a bit of graphic detail.
Mmm well Minecraft I know more as a processor killer… In idle, it almost does not need anything, but create ne new world or new areas of a world, there stands with me my 4kerner with 3,3Ghz to 100% …
As for Grafigkarte is another topic…
Only on the basis of the GHZ and cores you can't say if one processor is better than the other. Please tell us your processor model.