Which is better for gaming, the LG C6 or the Samsung S90F?

The LG C6 is better for gaming overall because it has four HDMI 2.1 ports, while the Samsung S90F has only one. The Samsung has a slightly higher 144Hz refresh rate, but the LG's extra ports make it easier to connect multiple consoles.

Does the Samsung S90F support Dolby Vision?

No, the Samsung S90F supports HDR10, HDR10+, and HLG, but not Dolby Vision. The LG C6 supports Dolby Vision, HDR10, and HLG.

Which TV is brighter, the LG C6 or the Samsung S90F?

The Samsung S90F is brighter in HDR, reaching 1,162 nits at 10% window. The LG C6 uses Brightness Booster but does not publish a comparable figure.

Is the LG C6 worth stepping up to over the Samsung S90F?

If you need four HDMI 2.1 ports or watch Dolby Vision content, the LG C6 is worth the step up. If you prefer a brighter HDR picture and HDR10+, the Samsung S90F is the better fit.

Which TV has better sound?

Both have Dolby Atmos and similar speaker setups: the LG C6 has 2.2 channels, and the Samsung S90F has 2.1 channels with 40W. Reviewers praise the Samsung's sound quality and amplify mode, but neither matches a dedicated soundbar.

LG OLED C6 65-inch TV vs Samsung S90F OLED TV

The LG C6 is the better all-round OLED for most shoppers, with four HDMI 2.1 ports, Dolby Vision, and a brighter evo panel. The Samsung S90F matches it on contrast and color, and adds HDR10+ and a 144Hz refresh rate, but it lacks Dolby Vision and has only one HDMI 2.1 port. Choose the LG for gaming and Dolby Vision content; choose the Samsung for a brighter HDR10+ picture and lower input lag.

Choose the LG C6 if you want four HDMI 2.1 ports, Dolby Vision, and the most complete OLED for movies and gaming.
Choose the Samsung S90F if you prefer HDR10+ support, a slightly brighter HDR image, and very low input lag for gaming.

Prices

LG OLED C6 65-inch TV: $899.99 at Amazon (checked today)
Samsung S90F OLED TV: $1,377.26 at Fireowls Corporation (last seen Nov 9)
Difference: the LG OLED C6 65-inch TV is $477.27 cheaper than the Samsung S90F OLED TV at the latest prices (Nov 9 and Nov 10)