A poster on South Korean tech forum Clien states that Samsung and AMD's in-house Radeon-based GPU 'crushed' Qualcomm's Adreno 650 in a GFXBench best. It scored 181.8 fps on the Manhattan 3.1 test 138.25 fps on Aztec Normal and 58 fps on Aztec High. The numbers are significantly higher than the Adreno 650's 123, 53.5, and 20 fps, respectively, on the same tests. If these numbers are accurate, then Samsung's upcoming line of Exynos chips can potentially outperform Qualcomm's subsequent flagships.However, enthusiasm should be curbed a bit as the Radeon-based Samsung SoC is still far away. It appears we shouldn't expect it until 2021 at the earliest, via the Galaxy S21 series.
As a bit of trivia, Adreno is an anagram for Radeon. AMD sold its handheld GPU unit to Qualcomm in January 2009. It's interesting to see the company competing with a former part of itself.