PHOENIX (AP) -- The San Francisco Giants swept aside the Arizona Diamondbacks with a powerful hitting display.

Bill Mueller and Bobby Estalella homered during San Francisco's eight-run first inning and Barry Bonds, Jeff Kent and Rich Aurilia also connected in the Giants' 12-7 victory Sunday.

"We're a good offensive team," said Kent, who was 6-for-15 with two homers and eight RBI in the Giants' three-game sweep. "We were bound to get some good hits. It was a matter of time."

Bonds hit his 453rd home run, a two-run shot in the ninth, to take sole possession of 21st place on the career list.

The Giants entered the series with only four victories in 15 games.

"We hit the ball well this series against a team that's near the top of the league in pitching," Giants manager Dusty Baker said. "The big thing is we don't play Arizona again until September. What you're doing then, in essence, is relying on other people to beat them for you."

Luis Gonzalez hit his fifth homer and Erubiel Durazo hit his third for Arizona, which has lost three in a row for the first time since Aug. 31-Sept. 3. The Diamondbacks had not been swept since dropping three straight to Cincinnati on June 21-23.

San Francisco had eight batters reach base safely before the Diamondbacks recorded an out. The Giants' eight-run inning was their largest since they scored nine runs in the fifth inning against Oakland on June 22, 1998.

"To have the pitcher up, be leading 8-0 and having nobody out, that was kind of weird," Kent said.

Armando Reynoso (1-3) allowed seven runs, six hits and a walk without retiring a batter in the shortest outing of his career.

"I was trying to get the ball down and it was tough," Reynoso said. "I just want to forget about today and think about next time."

Marvin Benard singled to center and Mueller homered just over the right-field fence to put San Francisco ahead 2-0.

Bonds then singled to right, moved to second on a single by Kent and scored on J.T. Snow's double down the right-field line to make it 3-0. Reynoso walked Ellis Burks to load the bases before Aurilia lined a two-run single over second baseman Jay Bell for a 5-0 lead.

Brian Anderson replaced Reynoso and was called for a balk, scoring Burks before Estalella hit a two-run homer to right to cap the eight-run inning.

Joe Nathan (1-0) allowed six runs and seven hits in five innings for the Giants. Nathan, coming off three straight no-decisions, was nearly as shaky in the bottom of the inning as six of the first seven Diamondbacks hitters reached base safely.

Arizona cut the lead to 8-4 on an RBI single by Gonzalez, Durazo's homer and Andy Fox's run-scoring groundout.

Kent made it 9-4 in the fifth when he homered into the picnic pavilion above the center-field wall.

Gonzalez answered in the bottom of the inning with his second homer in as many days into the pool area and Travis Lee had an RBI groundout to pull Arizona within 9-6.

Game notes
The Giants, who entered the three-game series having lost six straight to Arizona, swept the Diamondbacks for the first time. ... Reynoso's outing was the shortest in the Diamondbacks' three-year history. ... San Francisco has scored 43 runs in its 11 losses and 64 runs in its seven victories. ... Anderson's four-inning relief stint matched the team record set April 5 by Mike Morgan. ... Kent robbed Tony Womack of a hit in the sixth when he leaped high to snag a line drive. ... The Diamondbacks went 3-4 during their homestand, their first losing homestand since June 14-27, 1998.