Core Ultra 5 245K vs M4 Max (16 cores)

The Core Ultra 5 245K packs 14 cores / 14 threads, while the M4 Max (16 cores) offers 16 cores / 16 threads — the M4 Max (16 cores) has 2 more cores. Boost clocks reach 5.2 GHz on the Core Ultra 5 245K versus 4.51 GHz on the M4 Max (16 cores) — a 14.2% clock advantage for the Core Ultra 5 245K (base: 4.2 GHz vs 2.75 GHz). The Core Ultra 5 245K is built on the Arrow Lake-S (2024−2025) architecture. In PassMark, the Core Ultra 5 245K scores 43,417 against the M4 Max (16 cores)'s 43,985 — a 1.3% lead for the M4 Max (16 cores).

The Core Ultra 5 245K uses the LGA1851 socket (PCIe 5.0), while the M4 Max (16 cores) uses none (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to 6400 memory speed. The Core Ultra 5 245K supports up to 192 of RAM compared to 128 GB — 40% more capacity for professional workloads. Memory channels: 2 (Core Ultra 5 245K) vs 8 (M4 Max (16 cores)). PCIe lanes: 20 (Core Ultra 5 245K) vs 40 (M4 Max (16 cores)) — the M4 Max (16 cores) offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z890,B860 (Core Ultra 5 245K) and Apple Silicon (M4 Max (16 cores)).

Only the Core Ultra 5 245K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core Ultra 5 245K) vs Apple Virtualization (M4 Max (16 cores)). Both include integrated graphics — Intel Graphics (4 Xe-cores) (Core Ultra 5 245K) and Apple 40-core GPU (M4 Max (16 cores)) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: M4 Max (16 cores) targets Professional Laptop. Direct competitor: Core Ultra 5 245K rivals Ryzen 5 9600X; M4 Max (16 cores) rivals Ryzen AI Max PRO 390.