Our contacts have told us that memory reads on PS4 are 40-50 per cent quicker than Xbox One, and its ALU (Arithmetic Logic Unit) is around 50 per cent faster. One basic example we were given suggested that without optimisation for either console, a platform-agnostic development build can run at around 30FPS in 1920×1080 on PS4, but it’ll run at “20-something” FPS in 1600×900 on Xbox One. “Xbox One is weaker and it’s a pain to use its ESRAM,” concluded one developer.
This runs in line with reports coming out about the resolution for the One's launch games. COD looking like it's 720p (1080p confirmed for PS4), Ryse is 900p, Killer Instinct is 720p, Forza is actually running 1080p, TitanFall is going to be 720p also. More also coming out that supposedly BF4 is 720p on Xbox One (supposedly higher on PS4, but nothing concrete as of yet on either resolutions).
Johnathon Blow, developer of The Witness:
Just Cause Dev: LINK
“It’s difficult to say, as it’s still early days when it comes to drivers,” Blomberg said. “With each new driver release, performance increases dramatically in some areas. The PlayStation 4 environment is definitely more mature currently, so Microsoft has some catching up to do. But I’m not too concerned about that as they traditionally have been very good in that area.
“The specs on paper would favor the PS4 over the Xbox One in terms of raw power, but there are many other factors involved so we’ll just have to wait and see a bit longer before making that judgment,” he added.
Obviously this is an older article, so the One's development tools are farther along. And obviously as time goes on they'll be able to more efficiently deal with the ESRAM.
War Thunder developer: LINK
AY: Well, obviously PlayStation 4 is more powerful than Xbox One.
How much more powerful?
AY: It depends what you’re doing. GPU, like 40 per cent more powerful. DDR5 is basically 50 per cent more powerful than DDR3, but the memory write is bigger on Xbox One so it depends on what you’re doing.
How is that going to translate to on-screen results for the kinds of games you want to make? So to optimise War Thunder on both consoles you could hypothetically make a better, prettier version on PS4?
Adrian Chmielarz [ex People Can Fly studio - developed Gears of War Judgment]
This post was edited on 10/26 at 5:42 pm