This one is a 4K FullHD projector that uses a TI chip. If you were looking for something that would be an entry to the 4K realm and at the lowest price - you should read this Optoma UHD50 review.
This model features the six-segment color wheel to adjust colors in RGB, so it will combat tendencies to see a rainbow on the screen. On the other side, it has a lower level of brightness than 60 or 65 models - around 2200 lumens. Placement flexibility, and wide throw range - that’s all about Optoma UHD50 specs. On the back, it also has RS-232, two HDMI 4K compliant inputs, standard VGA input, 12 little trigger audio in, USB output, and S/PDIF.