Gaming laptops have made big strides in recent years, but let's be honest: getting great frame rates on a mobile device is easier said than done. A pair of new products unveiled over the last couple of days hold the promise of powerful portable performance, however. First up is the GTX 680's little brother, the Kepler-based 600M class mobile GPUs, which are smaller, faster and less power-hungry than their predecessors. Meanwhile, the thermal gurus over at Asetek have introduced a new slim form factor liquid cooling technology designed just for notebooks and AIOs -- then overclocked a Alienware M18x to 4.4 GHz to show off its chops.