Originally Posted by awardb
WOW! As a new owner of a X75900E, that is an eye-opening thread. Guess I'll have to give up on using the built-in apps on the TV for 4K and replace my Roku with a newer 4K compatible model. The news on the built-in WiFi on these TV's isn't much better. Sounds like a 4K panel, but all of the other stuff built-in is quite sub-par.
My only saving grace was the use of an Nvidia Shield, and for the past 2 and a half years witnessed Android TV at its peak performance. If the Shield wasn't present, I probably would have shipped my TV back. There's simply no excuse for the Android TV experience on these displays to be this poor, other than to cut costs here and there. So far, I've researched information regarding the Sony and Oppo usage of Mediatek SOCs.
The Oppo 203 uses the Mediatek 8591, while the Sonys use the 5891. Oppo and Mediatek worked in conjunction to develop the chip for the 203 and 205, and my 203 is simply awesome. The Nvidia Shield uses a Tegra X2 and is over 2 years old. I can't throw any old video file at my 900e like I can with my Shield and Oppo, and expect it to play. So the Shield, as always the case, is my primary viewing device.
Video-wise, the 900e is spectacular. Playing videos through the Shield and Oppo 203, whether it be 480p, 1080p, or 4k, I've been overly impressed.
While this link belows points the finger mostly towards Android TV, you will see how Sony's implementation gets some of the blame as well. Considering I'm using a Shield, I simply do not have these performance issues with this device, running the Same OS. The only real limitation is no HDR for Youtube and Google Play movies.