My son has a desktop with an i5-4590 and 8 gb of ddr3. I am looking for some recommendations for a dedicated gpu that will match up well without bottelnecking the system. He is mostly been into xbox1 but has been looking into pc gaming thru Steam. He computer is running Win10 newest build also. As for games, he is looking at some newer ones like BF1 though he will probablly stay with the xbox for that. He also has some older games like Rise of Flight for flight sims. Suggestions?