The G.Skill Trident Z5 CK 48GB DDR5-8200 wins in 3 out of 5 comparable specs. Its biggest advantage is Capacity (200% better).
Vengeance LPX 16GB DDR4-3600 wins in 2 specs (MSRP: 82% better).
Recommendation
Choose Trident Z5 CK 48GB DDR5-8200 if you want the best overall performance — especially capacity.
Choose Vengeance LPX 16GB DDR4-3600 if msrp matters more to you.