Most of those designs look like graphics cards released today.
That is just what I was going to say. This concept art doesn't show much imagination. Graphics cards still connecting via a PCIe x16 slot, in pretty much the exact same form factor they have today? And RGB is still in style? Prometheus looks like it could be a card getting released this year. Sirius and Andromeda are a lot more vague about how they are actually intended to dissipate heat. Are they solid blocks of efficient crystal circuitry, perhaps? That still connect to a PCIe slot for some reason, since apparently motherboards don't have access to the same tech? Sirius even has its connector on the wrong side. Yes, I am being way too critical. : P
In any case, something tells me graphics cards in 2035 might be rather different from this. Unless there are some massive breakthroughs in chip design that bring far more efficiency, performance gains are going to continue to slow down. To gain much more performance, chips may need to get bigger, draw more power, and become more expensive, and it's questionable how practical that would be for consumer products. It's possible that upgradable graphics cards as we know them might even get phased out, in favor of APUs containing the CPU, GPU and memory all in one chip, or at least on the same board, as we see with consoles and laptops. If the performance gains slow enough, people may not be upgrading components often enough to support a market of dedicated cards like these.