AMD Ryzen Z1 Extreme's Advantages
Better graphics card performance
Higher base frequency (3.3GHz vs 1.7GHz)
Lower TDP (9W vs 20W)
Intel Core Ultra 5 135H's Advantages
Released 7 months late
Higher specification of memory (LPDDR5-7467 vs DDR5-5600)
Larger memory bandwidth (120GB/s vs 89.6GB/s)
Newer PCIe version (5.0 vs 4)
Larger L3 cache size (18MB vs 16MB)