The BitFenix Pandora is not a large case. But when presented the opportunity to build with it, I was on a mission to figure out what kind of horsepower we could squeeze into it.
This build was originally scheduled for a few months ago, but we ran into a few snags acquiring the right motherboard. Obviously it's not your typical build. Video of the build is in the process of being edited - we'll post the YouTube link once it is ready.
I haven't benchmarked it yet, but I suspect the top GTX 980 will throttle from heat. We'll test it and see how it performs. The backplates leave very little room for airflow, even removing the small section on the bottom card.
The Pandora case is very slender, which presents a nice profile on a desk. However, that comes at the expense of cable management space behind the motherboard tray. Keeping the cables clean, particularly with two drives and two video cards, was challenging. The only real available space to route cables was through the front interior. There is a bit of room behind the motherboard tray, but not enough to route everything. Trust me, I tried.
For a simpler part list, this could be a perfectly sufficient case. For more complex builds, I'd probably recommend something with a different layout and more room behind the motherboard tray.