Maximum PC: Gigabyte this week announced the release of its U2442, an "extreme Ultrabook" for gamers with Nvidia GeForce GT 650M or 730M graphics. On paper, there's quite a bit of power packed into a machine that measures 339mm (W) by 233mm (D) by 18.5-21mm (H) and weighs 1.69kg (3.7 pounds) or less, depending on whether it's configured with a solid state drive (SSD) or mSATA SSD and hard disk drive (HDD) combo. (Gigabyte, Gigabyte U2442 Ultrabook, NVIDIA, PC hardware)