The 10900k is locked here. A 5800x is much better effiency wise but if you run a 10900k unlocked and not at a 125W TDP it'll score higher than a 5800x.So in that chart you posted is the 5800X not ahead and faster than 10900K in MT and ST?
Edit: https://tpucdn.com/review/intel-core-i9-10900k/images/cinebench-multi.png