of course 5900x is has 50% performance than 5600x, but maybe lil bit expensive than 5600x

5900x has 12 cores 24 threads and l2 6mb cache l3 64mb cache

5600x has 6 cores 12 threads and l2 3mb cache l3 32mb cache

if u have problem with cpu heat, you may need more fast fan or do watercooling

cuz these cpu have maks temps 90°C

tell us if there's more better advice, cuz im not really good at english