[SLI is] nVidia technology based on the old 3DFX stuff that they bought
some time ago.
SLI, in nVidia cards, is an acronym for "Scaleable Link Interface;" in 3DFX
cards, it is an acronym for "Scan Line Interleave." The two are not the
same thing. That they both share the same initials is an invention of the
nVidia marketing droids -- very the same people that did all the dirty
tricks behind the GeForce FX series.
[ATi is] not likely to [develop SLI-like technology], as far as I can
see...
ATi Multi-Render (AMR) is ATi's response to SLI, and, though it's going to
be implemented later than SLI, rumor has it that it's going to do away
with some of the major annoyances people see with dual-6800
configurations.
I can't imagine that Ati would be that happy having to license core
technology from nVidia.
nVidia cannot possibly hope to have any legal rights over any technology
that allows two graphics cards to split the processing load evenly when
drawing a frame, even in a country where the intellectual property
legislation is so backwards as to allow Microsoft to patent sudo -- the
UNIX superuser do command. To my knowledge, they haven't tried to do so,
either. Besides that, I wouldn't think that such licensing issues would
carry across the US-Canadian borders, but, then again, I have no
experience in matters like this.
ATi hasn't released any [SLI-like cards] yet.
I believe that the X850 will have AMR capabilities included. If not, the
R520 series of cards will certainly carry this feature.