This is the first Pi with 4 or 8 gigabytes of memory, and the ability to boot off a USB drive natively (like a SSD). It can easily replace a big desktop computer with a tiny ~$50 board. It is not a slow and semi-unreliable little computer like the previous models (Raspberry Pi 3 and below).
The Pi 3 only has 1GB of memory and is pretty much unusable for modern desktop use (especially browsing the web today). In addition with only a micro SD card as primary storage it's super slow and prone to brick itself if you aren't careful about powering it up and down cleanly.
The Pi 3 only has 1GB of memory and is pretty much unusable for modern desktop use (especially browsing the web today). In addition with only a micro SD card as primary storage it's super slow and prone to brick itself if you aren't careful about powering it up and down cleanly.