While both consoles are outfitted with 8GB of RAM, the PS4 opts for 5500MHz GDDR5 RAM, while the Xbox One uses the more PC-like 2133MHz DDR3 RAM. This leads to a massive bandwidth advantage in favor of the PS4. The PS4's CPU and GPU have 176GB/s of bandwidth to system RAM, while the Xbox One has just 68.3GB/s.