The x86 server market continued to grow in Q4 2007, increasing 7.6% in the quarter to $7.8 bln in worldwide revenues, according to IDC. Unit shipment growth also accelerated, growing a healthy 10.3% YTY to 2.1 mln servers as customers continued to refresh and expand their IT infrastructures. For the full year 2007, worldwide x86 server revenue grew 10.4% to $28.7 bln, while worldwide x86 unit shipments grew 8.3% to 7.6 mln units. HP outpaced the market in Q4 2007, growing factory revenue 12.0% and gaining x86 market share in the process. HP led the market with 35.0% revenue share while IBM and Dell tied for second place with each vendor securing about 20% revenue share.