My last two computers have been Macbook Pro 17" when they released speed updates I get them fully loaded 8GB RAM, fastest processor, biggest SSD, and I have a MacPro tower with 30" Apple Screen and 16GB RAM and so on....I don't think that it inherently makes your images better, but having a faster computer, that can do more, or not even more, but things faster...and you don't have to wait (as long) for things to happen, it allows you to let ideas flow more freely into your work, which in turn can yield better images...I honestly think that having a computer that can easily handle your files is something you owe yourself if you have a mfdb....