Lenovo legion Y720 is good for high resolution games. It has GTX 1060 6GB GDDR5 with PCIe and this feature is also good for blu-ray and 1080p quality videos. It has intel seventh gen processor. best operating system is windows 10 for this machine. if you install windows 7 or 8 in this system, the proper drivers are needed for it operation. sound quality is good. Battery quality is not bad. In one word this laptop is reliable.