Eurogamer compara varios títulos multi entre XBOX 360 y PS3, entre ellos CoD4 :
Infinity Ward's return to the Call of Duty franchise is a landmark release, a brilliant example of developers at the very pinnacle of their game. The Xbox Live multiplayer beta was a tantalising teaser of what was to come, but the sheer magnificence of the final code is nothing short of a revelation. Effortlessly combining quality online gameplay with a single-player campaign that out-quaffs all competition, Call of Duty 4 is quite simply a staggeringly good game and right up there with Super Mario Galaxy as my personal pick of the year.
The great news is that both Xbox 360 and PlayStation 3 owners get to experience the same superb gameplay with no compromises, the two versions essentially being completely interchangeable. Sure, there are a few minor variations here and there, if you can stop playing long enough to sit down, put both versions side-by-side and compare them carefully. There's the occasional better-looking texture on 360, offset by some more accomplished effects (like the rain in the cargo ship mission) and less blocky shadows on the PlayStation 3 rendition of the game. Of slightly more consequence is that the loading times on the PS3 game are noticeably longer: anything from 10 to 15 seconds longer compared to the same data being streamed in on Xbox 360.
Both versions are also operating at a sub-HD resolution - 1024x600 to be precise - but the scaling up to both 720p and indeed 1080p looks decent enough thanks to anti-aliasing being present on the base image. Certainly, frame-rate is not an issue; both games run (for the most part) at a smooth 60fps, and I for one would take that arcade-like precision and crispness of response over a boost in resolution any day.
Miniscule differences aside, the point is that the core experience and all the things that make this game great are identical on both Xbox 360 and PlayStation 3, with only the lure of Achievements potentially offering further replay value for owners of the Microsoft console if you are that way inclined.
claro.. se nota taaanto la diferencia entre ambas