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- 31 Oct 2012
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Not wishing to go off topic but just how the hell does SLI actually work?
Do the cards talk to each other and say "OK, I'll deal with the lighting and AA here, you take the textures and water" "oh the water is getting a bit much for me, your not doing to much, fancy doing the water too?"
Just how does it work so well. Quite impressive really.
I'm hoping to get the Occulus rift when the consumer product is ready. I believe this will double the workload on the GPU as it is asking for two different images to be rendered at the same time, so I think a good time to "SLI" would be when I get the Occulus. (If I can afford all that!)
Normally by AFR (alternate frame rendering) - "I'll draw this one, you start on the next"
Can also be SFR (split frame rendering) - "I'll draw over here, you draw over there"
Unfortunately it doesn't always work well, which is why in general people advise the fastest single card in your budget range, so e.g. one 980Ti over 2 970s.
Also, on original post... SSD is best upgrade by a long way! Doubling RAM is reasonable, better (& quieter) PSU would be a nice to have, I'd consider a nice quiet air cooler to replace the stock one to make it run quieter too personally but some people don't really care about a bit of fan noise.
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