The Xbox One barely has games that runs in 1080p, with Turn Ten’s Forza Motorsport being one of the few. PS4 on the other hand does it with ease, with most of the console’s titles being rendered in unadulterated 1080p.
The reason for this is, according to the senior producer of Sniper Elite 3 Jean-Baptiste Bolcato – speaking to Gamingbolt, Xbox One’s small allocation of eSRAM compared to PS4′s unified architecture.
It was clearly a bit more complicated to extract the maximum power from the Xbox One when you’re trying to do that. I think eSRAM is easy to use. The only problem is…Part of the problem is that it’s just a little bit too small to output 1080p within that size. It’s such a small size within there that we can’t do everything in 1080p with that little buffer of super-fast RAM.
It means you have to do it in chunks or using tricks, tiling it and so on. It’s a bit like the reverse of the PS3. PS3 was harder to program for than the Xbox 360. Now it seems like everything has reversed but it doesn’t mean it’s far less powerful – it’s just a pain in the ass to start with. We are on fine ground now but the first few months were hell.
They are releasing a new SDK that’s much faster and we will be comfortably running at 1080p on Xbox One. We were worried six months ago and we are not anymore, it’s got better and they are quite comparable machines. The Xbox One is a bit more multimedia, a bit more hub-centric so its a bit more complex. There’s stuff you can and can’t do because it’s a sort of multimedia hub. PS4 doesn’t have that. PS4 is just a games machine.
At least on paper, [PS4 is] a bit more powerful. But I think the Xbox One is gonna catch up. But definitely there’s this eSRAM. PS4 has 8GB and it’s almost as fast as eSRAM [bandwidth wise] but at the same time you can go a little bit further with it, because you don’t have this slower memory. That’s also why you don’t have that many games running in 1080p, because you have to make it smaller, for what you can fit into the eSRAM with the Xbox One.
It’s rather interesting that this early in the game Xbox One will be getting an SDK update, but if that’s to make the console a little more power — and brings it ever closer to PS4 in terms of capabilities, then it’s the smart thing to do.