Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 41.6GB/s)
Larger L3 cache size (20MB vs 8MB)
Intel Core i3 10300 's Advantages
Released 1 years and 7 months late
Integrated graphics card
Higher base frequency (3.7GHz vs 3.3GHz)
Lower TDP (65W vs 165W)