RYZEN 1500x = 430H/s (6 thread)
RYZEN 2400G L3: 4MB (very very bad)
RYZEN 1500x L3: 16MB (very very good)
How did you get 430H/s with Ryzen 1500x? I have only 320H/s with Ryzen 1600...
you might want to try and lower number of threads (to less than cores). this actually can increase performance in some setups, depends on CPU though.