AMD Ryzen 7 4800U's Advantages
Integrated graphics card
Higher base frequency (1.8GHz vs 1.5GHz)
Lower TDP (10W vs 15W)
Intel Core Ultra 5 115U's Advantages
Released 3 years and 11 months late
Higher specification of memory (LPDDR5X-7467 vs LPDDR4X-4266)
Larger memory bandwidth (120GB/s vs 68.27GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (10MB vs 8MB)