And they are not renders this round. A Twitter use named @GarnetSunset posted the photos below the fold. The NVIDIA GeForce RTX 3090 as a graphics card is going to be big alright, as the way I see it, that's three slots.

The card again confirms the design we have seen from earlier renders which were base on leaks of the cooling design. The new photos show the card full monty sitting next to the GeForce RTX 2080. It is one huge reference card alright, based on a matte black design with a fan on both sides. And that does say a thing to two about TDP and energy consumption.  The name of the card has been blurred out. GeForce RTX 3090 us rumored to have a GA102-300-A1 GPU armed with 5248 shader processors spread over 82 SMs. 

The card would get a massive 24 GB of memory connected throughout a 384-bit wide memory bus based on high-bandwidth GDDR6X. This leaker also mentioned a price of 1400 USD, much like the leak we have seen earlier this week. And yeah, count the PCE slots, that's three of them.

Photos of Flagship GeForce RTX 3090 Ampere Surface