The Xbox One and its main rival, the PlayStation 4, feature somewhat similar specs. They’re both based on the same x86 architecture, they both feature an 8 core CPU, and they both feature 8 GB of RAM. But when it comes to graphics, the PlayStation 4 has an edge.
The PlayStation 4 features 18 compute units, where as the Xbox One only has 12. Other than that, the GPUs are identical. This theoretically makes the Xbox One about 50% less powerful than the PS4, but the Xbox One does have a nifty trick up its sleeve.
Unlike the PlayStation 4, the Xbox One has a 32 MB ESRAM frame buffer for the GPU. When it comes to the main system RAM though, the Xbox One again falls short. It features 8GB of DDR3 RAM with 68GB/s bandwidth, while the PS4 has GDDR5 RAM with over twice the bandwidth. However, the 32 MB ESRAM found in the Xbox One will make up for some of this difference.
Ultimately, it’ll come down to games and what developers can get out of each console. We’ve seen time and again that a better looking game doesn’t translate into a better game.