Here is a part of the data I gathered.
Galaxy Note9's Mali G72 MP18 @572MHz (For comparison!):
1080p Driver Overhead 2 (OpenGL ES 3.0) Offscreen: 26fps (1,545fps)
1080p ALU 2 (OpenGL ES 3.0) Offscreen: 102fps (6,115fps)
1080p T-Rex Offscreen: 134fps (7,481fps)
1080p Manhattan 3.0 Offscreen: 80fps (4,930fps)
1080p Aztec Ruins (Normal Tier, OpenGL ES 3.1) Offscreen: 32fps (2,036fps)
1080p Aztec Ruins (Normal Tier, Vulkan 1.0) Offscreen: 30fps (1,914fps)
Galaxy S8's Mali G71 MP20 @546MHz (Stock):
1080p Driver Overhead 2 (OpenGL ES 3.0) Offscreen: 19fps (1,142fps, CPU bottlenecked)
1080p ALU 2 (OpenGL ES 3.0) Offscreen: 94fps (5,633fps)
1080p T-Rex Offscreen: 120fps (6,747fps)
1080p Manhattan 3.0 Offscreen: 72fps (4,461fps)
1080p Aztec Ruins (Normal Tier, OpenGL ES 3.1) Offscreen: 29fps (1,833fps)
1080p Aztec Ruins (Normal Tier, Vulkan 1.0) Offscreen: 24fps (1,526fps)
Galaxy S8's Mali G71 MP20 @572MHz
1080p Driver Overhead 2 (OpenGL ES 3.0) Offscreen: 19fps (1,156fps, CPU bottlenecked)
1080p ALU 2 (OpenGL ES 3.0) Offscreen: 99fps (5,968fps)
1080p T-Rex Offscreen: 124fps (6,929fps)
1080p Manhattan 3.0 Offscreen: 74fps (4,596fps)
1080p Aztec Ruins (Normal Tier, OpenGL ES 3.1) Offscreen: 30fps (1,904fps)
1080p Aztec Ruins (Normal Tier, Vulkan 1.0) Offscreen: 25fps (1,588fps)
Galaxy S8's Mali G71 MP20 @683MHz
1080p Driver Overhead 2 (OpenGL ES 3.0, running with M2 Cores at 2496MHz) Offscreen: 20fps (1,224fps)
1080p ALU 2 (OpenGL ES 3.0) Offscreen: 118fps (7,096fps)
1080p T-Rex Offscreen: 135fps (7,582fps)
1080p Manhattan 3.0 Offscreen: 83fps (5,154fps)
1080p Aztec Ruins (Normal Tier, OpenGL ES 3.1) Offscreen: 34fps (2,191fps)
1080P Aztec Ruins (Normal Tier, Vulkan 1.0): 29fps (1,833fps)
Mali G71 MP20 @764MHz:
1080p Driver Overhead 2 (OpenGL ES 3.0, Running with M2 Cores at 2574MHz) Offscreen: 21fps (1,269fps)
1080p ALU 2 (OpenGL ES 3.0) Offscreen: 132fps (7,915fps)
Mali G71 MP20 @839MHz:
1080p ALU 2 (OpenGL ES 3.0) Offscreen: 144fps (8,656fps)
ALU 2 benchmark seems to perfectly reflect each performance increase by percentage, for example a 50% increase in clockspeed is almost a 50% increase in score on ALU 2 benchmark, which means this thing highlights the pure GPU performance increase. The other game benchmarks are treated in the 683MHz sections, as I couldn't run them on 764MHz and 839MHz due to GFXBench limit, but we got a curve, and we can calculate the theoretical scores starting from there.
So fellas, yes. We did it. Ace did it. We are faster than Galaxy S9, a lot.