You cannot upgrade the RAM later. If you think you might need 24GB in two years, it is better to buy it now.
Be aware that the absolute base model sometimes has fewer ports (2 vs 4 Thunderbolt ports). which apple imac should i buy
If you do photo or video editing, opt for the Apple 24-inch iMac (M4 10-core CPU/GPU) . This version often comes with extra ports and the option for 24GB of RAM , which is ideal for "Apple Intelligence" and heavy multitasking. You cannot upgrade the RAM later
Are you currently using an or an earlier M1 model , and what is the main software you plan to run on the new one? Apple iMac M4 Review (2024) - CNET If you do photo or video editing, opt
According to The New York Times Wirecutter , if you already have a high-quality monitor you love, a Mac mini with an M4 chip can give you the same power for significantly less money.