The 4600G supports two channels of DDR4-3200 which has a maximum memory bandwidth of around 50GB/s (actual graphics cards are in the hundreds). While this chip may be decent for SD and other compute-bound AI apps it won't be good for LLMs as inference speed is pretty much capped by memory bandwidth.
Apple Silicon has extremely high memory bandwidth which is why it performs so well with LLMs.
Apple Silicon has extremely high memory bandwidth which is why it performs so well with LLMs.