The Samsung TU8000 is a slightly better TV than the RU7100. The TU8000 has much better black uniformity, response time, and a bit better reflection handling and contrast ratio, while the RU7100 has a somewhat better input lag, peak brightness, and better gray uniformity. The TU8000 comes with the 2020 Tizen interface while the RU7100 has the 2019 version, but in reality, there's little difference between these two TVs.