People are buying SLI systems because they are thinking it will significantly boast performance...they just haven't researched the many flaws with SLI...the motherboard manufacturer have just been selling SLI chips cause they have a higher profit...the prices on all of the SLI chipsets are $30-40 more than the nf4-ultra...the ultra chipset on the dfi nf4-d can been turned into an nf4-sli simply by closing a resistor...THATS what your paying a premium price for them to doIf that is the case, then why are people (apart from E-Penis Size Factor and stupidity) purchasing SLI Systems? Why are people paying double on their video card (and another 25% more again to get the supported motherboard board) only the get 40% improvement?
And why (apart from greed and stupidity) are the motherboard manufacturers going in on this too?
And why (apart from greed and stupidity) are the game devs coding with SLI in mind?
And to we have the same problems with ATI Cross Fire?
The game developers aren't writing the SLI code...nvidia has to constantly write and update drivers to use SLI for new games...I haven't really looked into crossfire because its a silly idea using dual cards anyways so I can't comment on that