Core Ultra 5 245KF vs Core i9-13900HX

The Core Ultra 5 245KF packs 14 cores / 14 threads, while the Core i9-13900HX offers 24 cores / 32 threads — the Core i9-13900HX has 10 more cores. Boost clocks reach 5.2 GHz on the Core Ultra 5 245KF versus 5.4 GHz on the Core i9-13900HX — a 3.8% clock advantage for the Core i9-13900HX (base: 4.2 GHz vs 2.2 GHz). The Core Ultra 5 245KF uses the Arrow Lake-S (2024−2025) architecture (3 nm), while the Core i9-13900HX uses Raptor Lake-HX (2023) (Intel 7 nm). In PassMark, the Core Ultra 5 245KF scores 43,424 against the Core i9-13900HX's 42,437 — a 2.3% lead for the Core Ultra 5 245KF. L3 cache: 24 MB (total) on the Core Ultra 5 245KF vs 36 MB (total) on the Core i9-13900HX.

The Core Ultra 5 245KF uses the LGA1851 socket (PCIe 5.0), while the Core i9-13900HX uses FCBGA1964 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the Core Ultra 5 245KF versus DDR5-5600, DDR4-3200 on the Core i9-13900HX — the Core Ultra 5 245KF supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 192 of RAM. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: Z890,B860 (Core Ultra 5 245KF) and HM770,WM790 (Core i9-13900HX).

Both processors feature an unlocked multiplier for overclocking. Virtualization support: VT-x, VT-d (Core Ultra 5 245KF) vs VT-x, VT-d, EPT (Core i9-13900HX). Both include integrated graphics — Intel Graphics (4 Xe-cores) (Core Ultra 5 245KF) and UHD Graphics 770 (Core i9-13900HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i9-13900HX targets Performance Gaming / Mobile Workstation. Direct competitor: Core Ultra 5 245KF rivals Ryzen 5 9600X; Core i9-13900HX rivals Ryzen 9 7945HX.