If you decide to upgrade, the first thing I'd suggest is using an external SSD instead of the internal Fusion drive. So bottom line: the new machine should greatly improve the performance you see. If your "Macintosh" HD is a Fusion drive, the new machine's SSD will help a bit, depending on which part of the drive (SSD or HDD) macOS decided to store the C1 Catalog (I assume it will store the original images on the HDD after a while). Not all C1 processes use the GPU, but other apps (Affinity Photo, Safari 14, video editing, etc.) also use the GPU, so it can't hurt. The i9's also have quite a bit more built-in cache, which also helps speed things up.Īlso, the newer graphics card will greatly speed operations that use the GPU. So IF you decide to buy a new machine, I'd go 3.6 GHz i9, which looks like the sweet spot from the performance numbers I'm finding the faster i9's going to cost a premium and not deliver much better performance. More cores mean faster processing for operations that are properly coded to take advantage of the cores. The i9's have more cores, and I found that the greater the number of physical cores, the lower the clock speed of each core (but of course a much higher aggregate speed). I looked it up and it appears that your machine's i7 has only 4 cores (total of 8 including virtual cores).
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