Review: New Intel Chips Power Skinny Laptops

The X-Slim is an eye-catching, sleek design that, to be blunt, copies a lot from Apple Inc.'s ultra-slim MacBook Air. The X-Slim is just as thick as the thickest point on the Air, though the Air tapers off from a bulge under the hinge while the X-Slim keeps an even thickness. At 2.9 pounds, it's a hair lighter than the Air and lighter than some netbooks.

How does MSI do it? Plastic. The Air's chassis is machined out of a big piece of aluminum, giving it rigidity. The X-Slim is all plastic, and its wrist rest and keyboard flex under your fingers in a way that doesn't inspire confidence.

Acer's Timeline has a more conventional design that wouldn't look out of place in a boardroom. It has a brushed-metal cover that resists fingerprints and has a pleasant keyboard. It weighs 3.5 pounds — heavier than the X-Slim but about 2 pounds lighter than a typical 14-inch laptop.

Inside, these computers sport Intel's ultra-low voltage processors, or ULVs. Similar processors have been on the market for some time at high prices, but Intel is now bringing them down so they could go into a $600-$700 laptop, positioning them as a step up from the Atom processors that run netbooks.