Can this case fit this graphics card?

Solution
Yes it can. The Obsidian case can handle up to 340mm GPU's (Link here - look under Tech specs tab).

GPU is listed at 305 mm HERE. I'm extracting the 12" length to 304.8 mm, doing the math. Also the price, for the GPU, at Newegg is ~$35 cheaper, depending on your taxes.

Personally I would go with the R9 290 instead of the 290x, if it was up to me. It costs less, consumes less power, & performs quite well for the $.
Here's a list of 290's that I'd consider.
Yes it can. The Obsidian case can handle up to 340mm GPU's (Link here - look under Tech specs tab).

GPU is listed at 305 mm HERE. I'm extracting the 12" length to 304.8 mm, doing the math. Also the price, for the GPU, at Newegg is ~$35 cheaper, depending on your taxes.

Personally I would go with the R9 290 instead of the 290x, if it was up to me. It costs less, consumes less power, & performs quite well for the $.
Here's a list of 290's that I'd consider.
 
Solution