Intel Pentium Gold G5420 's Advantages
Higher base frequency (3.8GHz vs 2.9GHz)
Lower TDP (54W vs 65W)
Intel Core i5 9400 's Advantages
Higher specification of memory (DDR4-2666 vs DDR4-2400)
Larger memory bandwidth (41.6GB/s vs 37.5GB/s)
Larger L3 cache size (9MB vs 4MB)