MAC Mini information needed

I'm going to get my wife a Mac Mini once the new model comes out.

I have a few questions.

I am a PC user, but I am not bias. This will be my 2nd Apple purchase, the first being the iPhone for my wife, which impressed me.

If I build a PC equal to the MAC Mini in specs, like same processor, same memory, same video, at least get things close as possible.............My question is....

Will the MAC Mini perform better, as in faster, when it comes to applications like Photoshop?

Or is the MAC Mini motherboard more like a laptop board, with slower bus speeds, etc? Just curious, because I watched the video on how to change the Mini memory.

Any information would be highly appreciated.

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