At first glance the AMD Radeon HD 6790 1GB GDDR5 video card looks identical to the Radeon HD 6870 1GB GDDR5 and that is because they are indeed the same exact card in this instance. AMD based the Radeon HD 6790 on the Radeon HD 6870 reference design card as we mentioned in the introduction. This means we are testing a dual-slot card with a PCB that measures 10.5″ in length and has two 6-pin PCIe power connectors that are located along the top edge of the video card.
Since the AMD Radeon HD 6790 reference card isn’t going to be on the retail market we won’t go into much depth on this one as there is no point.
Everything is the same as the Radeon HD 6870 and we covered that layout back in 2010 right here. AMD did let us know that the retail cards will look more like the PowerColor AX6790 1GBD5-DH video card that can be seen below.
As you can see this card features just one 6-pin PCIe power connector and a custom designed PCB and cooler that is nothing like what AMD sent us to review.