Ok. The way i understood the PS3's Memory worked was that it had 512 MB total memory divided in 2.

One half, 256 MB of DDR3 @ 700Mhz reserved for the system (OS functions) and 256 MB of XDR @ 3.2 Ghz dedicated Video Memory.

Now i was under the impression that they were completely seperate entities, that the OS could'nt allocate the XDR VRAM TO OS functions, or allocate the DDR3 system RAM to help out as VRAM.
However, this article seems to say differently.

It says that the RSX (PS3 Graphics Card) can freely access the full 512 MB total RAM. Now, given that the Xbox 360 has 512 MB of DDR3 @ 750 Mhz unified memory plus 10 MB of some type of faster VRAM (can't remember what type, too lazy to check), would'nt that mean the Xbox 360 would have run into the same type of problems, at around the same time, as the PS3 has?
Also, since the PS3 has this super-efficient XDR VRAM clocked @ 3.2 Ghz and the PS3 and Xbox 360 can access the same amount of RAM, as says the article, would'nt the speed and efficiency of the XDR VRAM help the PS3 out perform the the 360 in terms of frame rate? Would'nt the Xbox 360 be experiencing worse frame rate issues than the PS3?
Or would the XDR RAM slow down to match the speed of the DDR3, negating any advantage?

Here's the link and the article. What do you think. Can anyone chime in with info on the accuracy of this article?

http://hack5.blogspot.com/2008/07/exclusive-playstation-3s-ram-and-rsx.html

[removed - don't copy&paste whole articles, the link is enough]

I think the article fail to bring up several points, most noticeably the fact that the bus speed between the RSX and the XDR RAM is very very slow. So if the RSX access the XDR RAM it happens during very slow circumstances. It's not a technological highspeed autobahn between the two places, but rather an overgrown path in the jungle where you need to hack your way forward with a machete.

In any case, the article doesn't have anything to do with Skyrim.