The biggest difference between them is the RAM.
An extra 16gb RAM and 500gb for the SSD is worth the extra $150.
Everything else is pretty much the same.
Hmm, for gaming GPU is most important, then CPU, then RAM, if you need it as a workstation, CPU is most important, so ask yourself what's the most important thing you are going to use it for.
Just so you know, there isn't such a thing as PC with a specific brand.
PC's are not Apple. The logo at the start is just the motherboard brand/details loading.