The Acer Aspire One D255 netbook has a similar case design to the recently released Aspire One D260. However, the Aspire One D255 features a faster processor. This netbook is powered by a 1.5GHz Intel Atom N550 dual core processor (512KB of L2 cache) that supports hyper-threading. It means that Windows will report you have 4 processors even though you don’t. The hyper-threading capability of this processor also gives you a performance boost when you’re doing some processor-intensive tasks or multitasking.