CAPE TOWN, SOUTH AFRICA - MARCH 04: AB de Villiers of the Proteas during day 4 of the 3rd Test match between South Africa and Australia at Sahara Park Newlands on March 04, 2014 in Cape Town, South Africa. (Photo by Carl Fourie/Gallo Images)

Cape Town - Australia beat South Africa by 245 runs and claimed a 2-1 series win on day five of the third Test in Cape Town on Wednesday.

Needing six wickets on the final day at Newlands, the visitors left it to the final session of the day where they wrapped up the Proteas second innings.

The Aussies bowled out the hosts with just 27 balls remaining in the match.

Ryan Harris returned the best figures for Australia with 4/32.

South Africa attempted to bat the day out in captain Graeme Smith's last Test match for his country, but resolute knocks from Faf du Plessis (47), AB de Villiers (43) and JP Duminy (43) were not enough to salvage a draw.

Even a defiant innings down the order from top-scorer Vernon Philander (51 unbeaten) could not see the Proteas home.

Duminy was the last recognised batsman to depart for South Africa late in the day.

Mitchell Johnson dished up a ball on Duminy's pads, and the batsman clipped it straight to Nathan Lyon at leg slip as South Africa were reduced to 246 for eight.

It ended a 73 run eighth wicket partnership from 105 balls with Philander.

Needing two wickets to win for Australia, the drama escalated when Philander, on 45, was given out by the on-field umpire Aleem Dar, but it was overturned by the decision review system. It appeared Philander may have gloved the ball and was caught at short leg.

After the decision was made, the Australian players surrounded the umpires.

Dale Steyn and Aussie captain Michael Clarke then had a heated exchange before the game resumed.

Later, Harris clean bowled the last two batsmen, as Australia romped to victory.

After lunch, Harris struck to remove De Villiers. The batsman was caught behind by wicketkeeper Brad Haddin, ending a 322 minute stay at the crease.

Later, Du Plessis was out lbw to Steve Smith shortly before tea.

In the morning play, De Villiers and nightwatchman Kyle Abbott (7), frustrated the visitors as South Africa accumulated only 51

runs from 39 overs in the session.

Abbott was finally out as James Pattinson got the ball to reverse and hit the top of offstump.