in order to play it as shown in the screenshots, you will need a GeForce FX 6800 or FX 6600SLI, its not that disasterous.
keep in mind this will be released somewhere around the end of 2006, by then these things wont be as special. think of the first doom3 tech video, presented at the introduction of the GeForce3, people were more amazed than we are about unreal engine 3 now.
by the time doom3 came out, weve had several studios who ehm, lets say borrowed the techniques(far cry, halflife2 suddently came up with normal mapping and other shaders) and added a decent gameplay on top of that, rendering doom3 a nice-looks-only game (i think the gameplay was far from worth playing, doom3 just looked nice)
the shaders used are nothing new, ive had techdemos showing these techniques years ago, using HDR, normal mapping, soft shadowing, bloom shader, VDM, and some stuff that escaped my notice, perhaps.
oh and whats this crap about mixed engines?
when a game looks like another, newbies tend to say they used the engine of the game it looks like, or even mixed the engines of games, this is bullsh.. you CANT "mix" engines, ar rather, you could, but it would
1. take a hell lot of time
2. be twice as expensive as you need to buy 2 engine licenses + the full source code(in order to mix them), most developers dont even give this out nodaways.
trust me, you can make VERY different looking games running at the same engine, engine doesnt tell how the game is going to look, it just gives the game other limitations, like some engines are good with large open spaces(cry engine?), and some can have small details(unreal engine 2)
and some live off a 100% normalmapped geometry (doom3, unreal engine 3)