I'm looking at making a steam machine instead of buying a next gen console. I already have most of parts including the mobo which is a matx.
So because of the matx the smallest cases (that I can find) are HTPC cases but I'm just wondering how big in size they are compared with the new consoles.
heh, depends what you buy man! look at the dimensions of everything for comparison.
Silverstone's ML04 is what I have and it's a nice size. It's wider than the xbox one, but it looks really clean. The dimensions on that are 440 mm (W) x 105 mm (H) x 350 mm (D). Keep in mind that this case is slim, so it will only fit slim PCI cards (graphics cards)
The fractal design node 605 is small enough, not exactly xbox one size but close, have a look anyway: http://www.fractal-design.com/home/product/cases/node-series/node-605
Node 605 Dimensions: (W x H x D) 445 x 164 x 349 mm