Lenovo IdeaPad Z570 59315953 with "Intel® Core™ i7-2670QM (2.20 GHz, 6MB Cache) 2nd Generation Processor with Turbo Boost & Hyper-Threading Technology" ...Ram : 4GB DDR3 ... 750GB SATA .. NVidia N12P-GV1 DDR3 (2GB) .... I want to know your valuable reviews about this laptop and How it's graphics card performance ?