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SLI for all?

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Albuquerque

Member
Joined
Mar 26, 2003
Location
North America
It's not 3DFX, as their SLI meant "Scan Line Interleave" and each video card rendered alternate render lines (card #1 does odd lines, card #2 does even lines). This new method keeps the acronym, but replaces the meaning with "Scalable Link Interface". This allows the cards to load-balance dependant on multiple reasons; likely to include (but not limited to) pixel shader output, vertex shader output, total geometry, total fillrate, etc.

It also doesn't render odd / even lines, so it's not even remotely close to the "SLI" of old. Each card instead renders differing portions of the screen -- card #1 renders the top half, card #2 renders the bottom half. The exact line between the halves will depend on the individual load on each card; the line can be dynamically moved based on the required output load of the respective halves.

It's not 3DFX SLi, but it's a lot more intelligent and thus likely a lot better.
 
OP
cack01

cack01

Member
Joined
Mar 7, 2002
Location
San diego or UC Davis
I know, but I wrote the post before the NDA expired, so I didn't know too much.

This is probably still 3Dfx's technology. I feel the reason they have gone to redering sections of the screen rather than odd/even is because of the new load balancing. You can not load balance odd/even, so the next logical step would be to do sections.