-The accelerator is unusually long for a single-GPU one from AMD. The company wouldn't splurge too much on aesthetics (especially lengthening the PCB), if there's no need for it to do so. Apparently there is.
-Connectivity options galore. With two DVI-D, and one each of DisplayPort and HDMI, AMD promises it can handle three display-heads per GPU.
-The components behind the GPU area (exposed) indicates the GPU to be somewhat large
-History tells us that AMD uses a backplate only if it finds a real utility in it, such as cooling additional memory chips or VRM components. This card has a large, almost full-coverage backplate.
Spoiler!
that's a very huge card out there.. i wonder how many kilos it weights..hmmmm..