The first 5 laptops use Haswell chips to Vietnam
new generation of chips comes from the popular segment like dell inspiron 5537 to high-end models like the toshiba satellite p50 or the new acer aspire s7.VivoBook V551 - Ultrabook using Asus Haswell chip
vivobook v551 is ultrabook with 15.6-inch screen, using intel core i7-4500u platform haswell and nvidia's discrete graphics card.