Intel Core i9 12900HX 's Advantages
Integrated graphics card
Newer PCIe version (5.0 vs 4)
Larger L3 cache size (30MB vs 16MB)
AMD Ryzen 7 PRO 8840HS 's Advantages
Released 1 years and 11 months late
Higher specification of memory (DDR5-5600 vs DDR5-4800)
Higher base frequency (3.3GHz vs 2.3GHz)
Lower TDP (28W vs 45W)