A:AnswerYes this system can handle games. Like all laptops, the more resources the system uses the hotter the system will run so ensuring the air vents on the bottom of the system can "breath," it will run well.
The video settings configured within the game will determine the video frame rate the laptop will have. I find that this system runs much better than a comparable laptop that is using an Intel HD GPU. The NVIDIA GeForce GTX 960M is capable of 90 frames per second on a game that the Intel HD experiences 30 frames per second.
A:AnswerIt is common for most manufacturer warranties to only cover service in the US, so you may need to speak with the manufacturer (Dell in this case) about international coverage. You should have the option to purchase a Geek Squad Protection plan, which does offer international coverage.
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I hope that helps!