Here is a bunch of stuff that I am ripping from the EVGA forums since it doesn't look like it's been posted here...
" Moving on, with a $999 launch price NVIDIA’s competition will be rather limited. The GTX 690 is essentially a companion product; NVIDIA’s customers can either get the most powerful single-GPU card NVIDIA offers in a blower design, or an alternative design composed of two lesser GPUs in SLI, in a front and rear exhausting design. The GTX 690 will be the faster card, but at a higher TDP and with the general drawbacks of SLI. On the other hand Titan will be the more consistent card, the lower TDP card, the easier to cool card, but also the slower card. Meanwhile though it’s not a singular product, the GTX 680 SLI will also be another option, offering higher performance, higher TDP, more noise, and a cheaper price tag of around $900.
As for AMD, with their fastest single-GPU video card being the 7970 GHz Edition, offering performance closer to the GTX 680 than Titan, Titan essentially sits in a class of its own on the single-GPU front. AMD’s competition for Titan will be the 7970GE in CrossFire, and then the officially unofficial 7990 family, composed of the air cooled PowerColor 7990, and the closed loop water cooled Asus Ares II. But with NVIDIA keeping GTX 690 around, these are probably closer competitors to the multi-GPU 690 than they are the single-GPU Titan."
MSRP = 999.99USD
no 4-way SLI (3-way max)
I will be passing on this card.