South Africa 60-10 Samoa
South Africa 60
Tries: Van Niekerk, Muller, Hougaard, Smith, Willemse, Fourie, Van der Westhuyzen, De Kock
Cons: Hougaard (5), Koen (2)
Drop goal: Hougaard
South Africa sent out a warning to New Zealand as they booked the last World Cup quarter-final place with a crushing win over Samoa.
England coach Clive Woodward had predicted a tough test for the Springboks after his own side's scare at the hands of the Pacific islanders.
But Samoa never looked likely to recapture the same intensity in Brisbane after falling behind to a try from Joe van Niekerk after just 93 seconds.
And South Africa ran in seven more scores to set up a date with the All Blacks in Melbourne next Saturday.
Samoa had caught England cold, but this time they were on the receiving end as the Springboks pummelled them from the first whistle.
Having survived one early break, the Samoans allowed Joost van der Westhuizen to escape down the blind side and the scrum-half fed Van Niekerk for an easy score which Derick Hougaard converted.
Hougard had been handed a start at Louis Koen's expense by Springboks coach Rudolf Straueli.
And, after Samoa had offered brief resistance with a penalty from Earl Va'a, the influential fly-half landed a drop-goal to restore his side's advantage.
Some more powerful play from the superior Springbok pack allowed Jorrie Muller to crash through for a second try to make it 17-3 with just 12 minutes played.
Lock Victor Matfield was a dominant figure in the line-out for South Africa, and Samoa were let down by sloppy passing on the few occasions they managed to release their backs.
Hougaard atoned for a poor drop-goal attempt when he capitalised on a turnover, hacked the ball ahead and outpaced Semo Sititi to touch down for a try confirmed by the video referee.
A South African victory became a formality just before the break when number eight Juan Smith scored a fourth try after a classy dummy from hooker John Smit - picking up a bonus point in the process.
The Springboks predictably took their foot off the pedal after the break, and Samoa finally found something to smile about when Opeta Palepoi stretched out his arm for a try in the corner which Va'a converted with aplomb.
Samoa continued to press their opponents' line, winning a string of penalties, but failed to make their pressure tell.
Hougaard made them pay by slotting over his first penalty of the night before taking a massive hit in the ribs from Brian Lima.
South Africa's fifth try of the night came courtesy of Ashwin Willemse 12 minutes from time when the speedy winger sprinted clear from his own half after a Samoa attack broke down.
Willemse turned provider soon after to send Jaque Fourie over in the corner, and full-back Jaco van der Westhuyzen and replacement Neil de Kock also got in on the act to conclude a fine evening's work.
There was late drama when a spectator lunged at Koen, on for Hougaard, as he took the final conversion - but his assailant missed and the kick went over to end the match.
Samoa: T Vili; L Fa'atau, R Ropati, B Lima, S Tagicakibau; E Va'a, S So'oialo; K Lealamanua, J Meredith, J Tomuli; O Palepoi, L Lafaiali'i; P Poulus, M Fa'asavalu, S Sititi (capt).
Replacements: M Schwalger, T Leupolu,
K Viliamu, D Tuiavi'i, D Tyrell, D Rasmussen, D Feaunati.
South Africa: J van der Westhuyzen; A Willemse, J Muller, DW Barry, T Delport; D Hougaard, J van der Westhuizen; C Bezuidenhout, J Smit, F Rautenbach; B Botha, V Matfield, C Krige (capt), J van Niekerk, J Smith.
Replacements: D Coetzee, R Bands, D Rossouw, S Burger, N de Kock, L Koen, J Fourie.