Lenovo, HP, and Dell accounted for almost 65 percent of PC shipments in Q4, 2019, up from just more than 61 percent in Q4, 2018.
That said, it's possible we'll see some positive results this year too as the Windows 7 upgrades continue.
The traditional PC market grew for the first time in eight years during 2019, with global shipments growing 2.7% year-on-year to around 266.7 million, according to IDC. PC shipments surpassed 261 million units in 2019, reflecting 0.6% growth from the figure reported in 2018.
"This past year was a wild one in the PC world, which resulted in impressive market growth that ultimately ended seven consecutive years of market contraction", said Ryan Reith, Program Vice President with IDC's Worldwide Mobile Device Trackers.
The reason that Gartner and IDC's PC sales numbers don't line up is because both firms define the PC market slightly differently. IDC counts desktops, notebooks (including Chromebooks) and workstations, but not tablets or x86 Servers.
While Windows 10 was first released back in 2015, many consumers and even some businesses have been reluctant to make the switch to Microsoft's latest operating system.
Dell's shipments grew year-over-year in all regions at a much higher rate compared with the regional average, due in large part to its particularly strong desktop PC growth.
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"Looking ahead, Gartner predicts a continuous decline in the consumer PC market over the next five years", company analyst Mikako Kitgawa said in a research note.
Per IDC, the adoption of AMD CPUs, easing trade tensions and other industry drivers helped boost the market upsurge this holiday season.
Gartner added that for the first time since 2011, the PC market experienced growth, backed by robust business demand for Microsoft's Windows 10 upgrades, particularly in the United States, EMEA and Japan. "We expect this growth to continue through this year even after Windows 7 support comes to an end this month, as many businesses in emerging regions such as China, Eurasia and the emerging Asia/Pacific have not yet upgraded".
However, according to both IDC and Gartner, sustainable market growth in the PC market will have to come from innovation.
IDC noted that the top three PC vendors-Lenovo, HP, and Dell-all seized the opportunity to consolidate their market share, commanding 65 percent of the PC market.
HP, the No. 2 vendor worldwide, kept its top position in the US, EMEA and Latin America, Gartner reported.
Apple shipped an estimated 5.26 million Macs during the quarter, down from 5.43 million in the year-ago quarter, a decline of three percent. Shipment volumes were down 2.2 percent for the full year 2019.