Intel Core i3 9300 's Advantages
Released 4 years and 1 months late
Higher specification of memory (DDR4-2400 vs DDR3-1600)
Larger memory bandwidth (37.5GB/s vs 25.6GB/s)
Larger L3 cache size (8MB vs 3MB)
More modern manufacturing process (14nm vs 22nm)
Intel Core i3 4170 's Advantages
Lower TDP (54W vs 62W)