I'm wondering why my MacBook Air (13 inch, early 2015) is so much faster than my iMac (Retina 4K, 21.5-inch, Late 2015)?
The MacBook Air is configured with a 1.6 Ghz dual-core i5, 4 GB RAM, Intel HD Graphics 6000 and a 128 GB SSD.
The iMac is configured with a 3.1 Ghz quad-core i5, 8 GB RAM, Intel Iris Pro Graphics 6200 and a 1 TB SATA hard drive.
I run similar programs on both, some of which you would think would slow down the laptop, yet the laptop always seems to outperform the iMac. The iMac has been incredibly slow lately with Safari being especially painful at times. I thought maybe it was b/c some of my programs probably require a better machine than I have but then those same programs perform great/much faster on the laptop (which I'm sure does not have the min. specs for them).
The iMac is incredibly slow especially with opening just about everything from Mail, Photoshop to Safari (yet Firefox opens right up). The heavier program I run on both my machines is called Archicad v. 23. Archicad is much faster to open on the laptop.
I'm adding a link to some screenshots from the laptop and iMac to compare and screenshots of the current Activity Monitor from the iMac which I just restarted (it would only let me upload two images here so I added the link instead).
UPDATE 3/14: These screenshots here are from the iMac - not sure which are best to post i.e. CPU or Memory, etc. it only allows two images. Also should point out the iMac can run a little better once everything has been loaded and it's been sitting for an hour or two...but the start of programs and getting it running at normal speed after a restart takes a long time.