With all the hype surrounding Apple's ( AAPL) new iPhone, the personal computer feels as musty as old wallpaper. But Intel ( INTC), the world's No.1 chipmaker, is hoping desktops and laptops still have some pizzazz. And when the company reports its quarterly results after Tuesday's market close, investors will get a glimpse into how Intel is sizing up the PC market going forward. Many investors interpreted chip rival Advanced Micro Devices' ( AMD) recent profit warning as a positive sign about Intel's fourth-quarter performance, given that Intel didn't serve up a shortfall announcement of its own. But just as important as Intel's financial results for the final quarter of 2006 is its outlook for 2007, both in terms of competition with AMD and for overall PC demand. After a year of brutal competition, swelling inventory and plummeting profit, Intel is eager to turn a fresh page in 2007. The chipmaker has a few reasons to be optimistic. The imminent release of Microsoft's ( MSFT) Vista operating system, combined with Intel's own lineup of new dual-core and quad-core processors, could entice consumers to upgrade their PCs and perhaps even shore up the battered average selling prices of Intel's chips. The average analyst expectation sees Intel's sales rising 7.7% to $37.8 billion in 2007. EPS, however, is expected to jump to $1.13 from 84 cents in 2006.