Talk:Iris/@comment-24076773-20140310121925/@comment-24088226-20140312105630

http://valkyriecrusade.wikia.com/wiki/Thread:20609

From what I understand, the maximum definition of the in game artwork is 640x896, however the MD artwork is only downloaded when you own the card and open the full image picture (by clicking on the cards artwork on the card itself or going into your collection page). All the images you see of resolutions greater than 640x896 are just up scaled pictures.

The HD card artwork is 320×448 and downloaded to everyone's device if they enable the high definition artwork in their game settings. You apparently have to decode the images or something. I've never done any of this, I just remember seeing the above posted thread.