The African National Congress (ANC) is largely seen as winning the election again, returning its leader Jacob Zuma for a second presidential term, although analysts are expecting the party to have a smaller percentage than in the last elections in 2009.
Despite the considerable dissatisfaction with Zuma's first term with allegations of corruption, mismanagement and sometimes violent protests about a lack of delivery on basic services, the ANC's dominance is expected to continue amid a highly fragmented opposition that has also seen former ANC Youth League leader Julius Malema taking on his bosses with his own Economic Freedom Fighters Party.
The strongest opposition though remains the Democratic Alliance, led by Helen Zille, which has been gaining ground among blacks after initially being seen as a whites' party.
The 2014 elections will be the first in which the so-called 'Born Frees' - people born after 1994 in a democratic South Africa - will be casting their votes.
The South African system of proportional representation sees voters choosing parties rather than candidates, with the party winning a controlling number of seats in the legislature selecting the president.
This year's elections have also seen the Independent Electoral Commission (IEC), highly respected across the continent and internationally, come under fire for alleged involvement by its chairperson, Pansy Tlakula, in irregular property deals for IEC buildings.
Several parties went to court last week in an attempt to remove Tlakula from office, threatening to have the results declared null and void saying she would not be neutral as the IEC head.
The court however ruled that Tlakula would continue in her position until the matter is heard after the elections.
Scores of protesters have been arrested for burning public property and blocking roads. Final results of the election are expected within a week.
