This PC Microprocessor update provides the worldwide market and vendor share results for PC processor vendors in these segments for the fourth calendar quarter of 2009:

• Worldwide overall PC microprocessor unit share by vendor, 4Q09 with 3Q09 and 4Q08 comparison
• Worldwide overall PC microprocessor revenue share by vendor, 4Q09 with 3Q09 and 4Q08 comparison
• Worldwide desktop PC microprocessor unit share by vendor, 4Q09 with 3Q09 and 4Q08 comparison
• Worldwide mobile PC microprocessor unit share by vendor, 4Q09 with 3Q09 and 4Q08 comparison
• Worldwide PC server microprocessor unit share by vendor, 4Q09 with 3Q09 and 4Q08 comparison
• Worldwide PC microprocessor overall average selling prices and unit shipments for 4Q07–4Q09

The accompanying Excel spreadsheet data file includes the results of quarterly PC microprocessor studies from 1Q07 to 4Q09 in a pivot table format. The pivot table's data list, study definitions, and research methodology are also included.

TABLE OF CONTENTS

1. List of Attachments
2. In This Update
3. Learn More
   
   Related Research
   
   Methodology