Now that we've got our hands on the Samsung Galaxy Note9, we're able to make some comparisons between the Note8 and Galaxy S9+ in terms of performance. We've got some numbers from an international dualSIM variant of the Galaxy Note9, so this one is powered by the Exynos 9810 CPU. We're comparing it to both variants of the Galaxy S9+. Starting with graphics performance, the Exynos-powered Note9 wasn't at the top of any of the benchmark tests. The Galaxy S9+ with its Snapdragon 845 was able to get the best frame rates out of the graphic-focused GFX Bench tests. ...
Source: https://www.gsmarena.com/samsung_galaxy_note9_benchmark_results_against_s9_and_note8-news-32713.php