The Sony 520es appears to have a 10.2 Gb/sec HDMI port
"The 520ES is one of the few projectors on the market capable of playing Ultra HD Blu-rays with HDR and at a 10-bit colour depth. However, videophiles should note that the HDMI port is limited to 10.2Gb/s bandwidth instead of the more up to date standard of 18Gb/s which supports higher frame rates. This means that while most Ultra HD Blu-ray content will playback at 10-bit with 4:2:2 colour subsampling, 4K material encoded at 50 or 60 frames a second typically found in sports and music concerts, will drop down to 8-bit 4:2:0. Considering the price tag, we would have liked to have seen Sony future-proof the projector with full-bandwidth HDMI 2.0 ports."
Dynamic contrast 300,000:1
Sony 570ES Has according to AV forums review has 18.2GB/ sec HDMI
Dynamic contrast 350,000:1