Intel Core i7 12700K 's Advantages
Released 2 years and 6 months late
Higher specification of memory (DDR5-4800 vs DDR4-2400)
Larger memory bandwidth (76.8GB/s vs 37.5GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (25MB vs 4MB)
More modern manufacturing process (10nm vs 14nm)
Intel Pentium Gold G5420 's Advantages
Higher base frequency (3.8GHz vs 3.6GHz)
Lower TDP (54W vs 125W)