Just set up the new base M4 Pro Mac mini with 24GB Ram and 512GB SSD. This is replacing an M1 Max Mac Studio (base model 32GB). I am primarily using Xcode and Android Studio as the "heavy" apps that I use. I don't do much video editing, etc. I can tell you now that this base M4 Pro is faster in every way than the M1Max it is replacing. Xcode builds on the M1 Max were taking up to 2-3 minutes, sometimes longer. They are taking less than 1minute on the M4 Pro. I was skeptical of going from 32GB ram to 24GB but when I saw some Geekbench 6 results, I was impressed. In person, I also ran Geekbench 6 and the M4 Pro scored higher in all areas of the CPU test and slightly lower in the GPU test, but was practically negligible lower score compared to M1 Max. Again, in real world, the M4 Pro is significantly quicker. Have not heard the fan yet, but I can say that whilst the Mac Studio was cool as a cucumber almost all the time, no matter what I was doing, you could cook a burger on the Mac mini, super hot to touch the top. Sitting on a desk, so that doesn't matter to me, but just thought I would share about the heat. Does not seem to affect performance.