My PC specs are intel core 2 duo e7500 2.93 Ghz, 4gb ddr2 ram 800 mhz, nvidia gt 710 gddr3 2gb, 500 gb hdd. I am going to buy crucial 250 gb ssd to use it as boot drive and play some games on it, I am currently having Windows 7 ultimate 64 bit, I play games like assasins creed 3,4, gta 4, far cry 3, i dont play very high end games. After getting ssd, should i upgrade to windows 10 or stay at windows 7, all i want is better fps in games.