Athlon64 is a true 64 bits processor?

From: VP (vpedro.pias_at_sapo.pt)
Date: 08/31/04 

Date: Mon, 30 Aug 2004 23:40:20 +0100

I read here
http://www.geek.com/news/geeknews/2002Dec/bch20021218017827.htm

......
The K8's use 48bit memory addressing (4TB or 1TB, I forget). I believe AMD
will add full 64bit memory
addressing to the K9 series, and hopefully at that point they can increase
the memory bitpath from 128 to
256bit, as the K8 currently only deals with 128. Don't think that's a big
factor? Look at the GFFX5900 and
it's predecessor. Imagine a 2 lane
....
This is true ? Athlon64(K8) isn't a real 64bit processor ?

 VP