AUG is the common start codon for both eukaryotic as well prokaryotic cells. In eukaryotic cell, it codes for methionine . While in prokaryotic cell, it codes for formyl methionine.
In prokaryotic cell, ribosomes are found in cytoplasm, hence the translation occurs in cytoplasm.
Eukaryotic ribosome consists of two subunits; 40s and 60s(larger subunit)
Prokaryotic ribosomes have 70s ribososme, which consists of 50s and 20s subuints
in eukaryotic cell, 40s ribosome initially binds to the cap at the 5' end of mRNA.