Top 5 manufacturers of personal computers in 3Q

PC shipments fell sharply in the third quarter. One research firm also says Lenovo has overtaken HP as the world's largest manufacturer of personal computers, although another disagrees.

According to estimates by Gartner and IDC, these are the top 5 PC manufacturers in third quarter of 2012.

GARTNER:

Worldwide:

Lenovo Group Ltd., 13.8 million shipped worldwide, 15.7 percent share

Hewlett-Packard Co., 13.6 million shipped, 15.5 percent

Dell Inc., 9.2 million, 10.5 percent

Acer Group, 8.6 million, 9.9 percent

AsusTek Computer Inc., 6.4 million, 7.3 percent

Others, 36.0 million, 41.1 percent.

Total: 87.5 million

United States:

Hewlett-Packard Co., 4.1 million shipped in U.S., 27.0 percent share

Dell Inc., 3.3 million, 21.4 percent

Apple Inc., 2.1 million, 13.6 percent

Lenovo Group Ltd., 1.4 million, 8.9 percent

Acer Group, 989,725, 6.5 percent.

Toshiba, 989,600, 6.5 percent

Others, 2.5 million, 16.2 percent.

Total: 15.3 million

Source: Gartner

IDC:

Worldwide:

Hewlett-Packard Co., 13.9 million shipped worldwide, 15.9 percent share

Lenovo Group Ltd., 13.8 million shipped, 15.7 percent

Dell Inc., 9.5 million, 10.8 percent

Acer Group, 8.4 million, 9.6 percent

AsusTek Computer Inc., 6.4 million, 7.3 percent

Others, 35.7 million, 40.7 percent.

Total: 87.8 million

United States:

Hewlett-Packard Co., 4.3 million shipped in U.S., 26.1 percent share

Dell Inc., 3.4 million, 20.7 percent

Apple Inc., 2.1 million, 12.5 percent

Lenovo Group Ltd., 1.4 million, 8.3 percent

Acer Group, 1.0 million, 6.1 percent.

Others, 4.3 million, 26.2 percent.

Total: 16.4 million

Source: IDC