Intel demoed a quad-core Clarksfield laptop today at Computex 2009.The machine was an Asus engineering sample, featuring an undisclosed Nvidia mobile GPU and we had chance to have a quick play around with Crysis at 1,920 x 1,080, which all looked pretty impressive. Intel refused to disclose any further details on Clarksfield at this time, so clock frequencies, amount of cache and thermal design power will have to wait for another day. The company's representatives also refused to nail down a release date, but one spokesperson did suggest that it would 'be out before the end of the year,' which suggests that Intel's 32nm process is well ahead of schedule like the company promised a few months back.