AMD EPYC 9455P 's Advantages
Released 6 months late
Higher specification of memory (6000 vs 5600)
Newer PCIe version (5 vs 4)
Larger L3 cache size (192MB vs 16MB)
AMD Ryzen Embedded 8840U 's Advantages
Higher base frequency (3.3GHz vs 3.15GHz)
Lower TDP (28W vs 300W)