AMD Ryzen Z1 Extreme 's Advantages
Higher base frequency (3.3GHz vs 2GHz)
Lower TDP (30W vs 54W)
AMD Ryzen AI Max 390 's Advantages
Released 9 months late
Higher specification of memory (8000 vs 7500)
Larger memory bandwidth (128GB/s vs 89.6GB/s)
Newer PCIe version (4 vs 4.0)
Larger L3 cache size (64MB vs 16MB)