Second estimates confirmed the GDP rose at its fastest pace since the third quarter of 2011.
Private consumption grew a seasonally adjusted 2.2 percent quarter-on-quarter, up from a preliminary estimate of 2.1 percent and 0.4 percent in the previous period.
Capital spending increased sharply by 7.6 percent, more than the 4.9 percent growth initially estimated and marking its biggest gain since the last quarter of 2011. Meanwhile, housing investment was left unrevised at 3.1 percent.
Exports expanded 6 percent and imports increased at a fastest 6.3 percent, unchanged from the preliminary estimate. Public investment fell 2.7 percent and government consumption rose a meager 0.1 percent.
The annualized GDP growth was also upwardly revised to 6.7 percent quarter-on-quarter from a preliminary 5.9 percent.