Beside the PS4, I also have the Kindl fire HD and the HDX.
Well, i have to say, that the graphic differences between the two kindls are evident. The HDX-graphics are much better, compared to the kindl-Hd. There is also a "high-res"-option (HDX), which doesn´t exist on the HD-version. Even the I-Phone (I also own a I-Phone 4) graphics are better than on the Kindl-HD-Version.
Well, i have to say, that the graphic differences between the two kindls are evident. The HDX-graphics are much better, compared to the kindl-Hd. There is also a "high-res"-option (HDX), which doesn´t exist on the HD-version. Even the I-Phone (I also own a I-Phone 4) graphics are better than on the Kindl-HD-Version.