Each time a thread about future specs pops up, there are people stating that the Xbox 360 and PS3 were already old when entering the market and that their mom's PC was more powerful. I don't know in what universe those revisionists were in 2005 but certainly not in mine.
In november 2005, the Core Duo wasn't even launched and Intel was still pushing the Pentium which was dual core but not hyper threaded. A tri core with six threads was pretty impressive at the time and clearly wasn't in the cheap PC found in every supermarket.
Oh and 512 MB GPUs were only starting to appear, 128/256 MB was still the norm.
IIRC, 1 GB RAM was pretty common in 2005 though.
I think that when talking about 8 GB of RAM, Crytek are talking about RAM+VRAM.
I really hope we get a bigger than 2 GB pool of total RAM for next gen. 3 or 4 GB of unified GDDR5 would be ideal IMO as even in 2012/2013, I don't think 8 GB of GDDR5 or XDR would be affordable enough. Some people forget that you can't use DDR3 prices as a basis as console use much faster and more expensive RAM.