Santa Clara, Calif.-based Intel, the world's largest semiconductor company, boosted its total market share from 79.2 percent in the first quarter to 80.5 percent in the second quarter, with AMD essentially owning the rest of the market, according to the Mercury Research findings. Luke said part of Intel's strength during the quarter can be traced to the company's momentum with Macintosh maker Apple Inc., whose products command premium prices, and strong sales with Dell Inc. for lower-priced computers.