Pat F 4119 wrote:
Thanks, this is very helpful information. I currently have a 1.12 TB fusion drive, but I don't know what that is. Is that the 5400 RPM drive you mentioned?
I have several external drives, so I'll get to work freeing up some space to see if that helps.
The "Fusion Drive" is Apple's term for their use of a small SSD for the OS and applications, and a larger conventional drive (usually 5400 RPM) for data storage.
The SSD is many, many times faster than the conventional drive.
I have a 2013 21.5" 4-core i5 iMac with stock Intel graphics. It came with 8GB RAM. It slowed down like yours did, as the 1TB 5400 RPM internal hard drive filled up, and as software evolved. (It came with MacOS 10.6.8, and now runs 10.15.7, I think.)
In 2019, in a leap of faith, I ordered an upgrade to 16GB RAM and a 2TB SSD with installation kit, from Other World Computing. (I've dealt with them since 1988.) Using OWC's video, and a Dozuki Guide on iFixIt.com, I disassembled the iMac and performed major surgery on it.
THAT was a bit nerve-wracking. Disassembly involves cutting the foam tape that attaches the monitor to the case, using a "pizza wheel" plastic cutting tool and a precise touch. Then it involves unplugging a lot of tiny little connectors, and removing a bunch of little screws, a power supply, the motherboard... But four hours later, after swapping the drive for the SSD and the two 4GB RAM DIMMS for two 8GB sticks, it all worked.
Instead of a three minute boot time, I could sign in and reach the Desktop within 35 seconds. A video that took seven minutes to render from Final Cut Pro on the stock system took 56 seconds to render after the upgrade. Lightroom had been crawling. Now it is snappy enough to be tolerable. EVERYTHING got sped up. The computer is still usable, although after this Fall, it will no longer be supported with security updates and we will abandon it. But getting three additional years' life out of it for under $375 was worth it.
I now have a Late 2020 M1 MacBook Air with 8 core CPU, 8 core GPU, 16 core Neural Engine, 16 GB Unified Memory, and 1TB SSD. It is a phenomenal little machine, many times faster than the iMac. The exact same processor, memory, and storage options can be found in a 13" MacBook Pro, a Mac Mini, and a 24" iMac, right now. The 13" MacBook PRO is the worst value among them, but the Air, the Mini, and the 24" iMac are great machines.
A LOT more information on all of Apple's latest can be had from many YouTube reviewers. I subscribe to and occasionally watch content from:
MaxTech
Everyday Dad
iJustine
Rene Ritchie
Luke Miani
iCaveDave
Greg's Gadgets
Sara Dietschy
Tyler Stalman
Alex Ziskind
Zone of Tech
Linus Tech Tips
Mark Ellis Reviews
MobileTechReview