Core Ultra 9 275HX vs Core i5-13600K

The Core Ultra 9 275HX packs 24 cores / 24 threads, while the Core i5-13600K offers 14 cores / 20 threads — the Core Ultra 9 275HX has 10 more cores. Boost clocks reach 5.4 GHz on the Core Ultra 9 275HX versus 5.1 GHz on the Core i5-13600K — a 5.7% clock advantage for the Core Ultra 9 275HX (base: 2.7 GHz vs 3.5 GHz). The Core Ultra 9 275HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Core i5-13600K uses Raptor Lake, Raptor Cove, Gracemont (2022) (Intel 7 nm). In PassMark, the Core Ultra 9 275HX scores 56,018 against the Core i5-13600K's 37,655 — a 39.2% lead for the Core Ultra 9 275HX. L3 cache: 36 MB (total) on the Core Ultra 9 275HX vs 24 MB on the Core i5-13600K.

The Core Ultra 9 275HX uses the FCBGA2114 socket (PCIe 5.0), while the Core i5-13600K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Core Ultra 9 275HX supports up to 256 GB of RAM compared to 192 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 9 275HX) vs 20 (Core i5-13600K) — the Core Ultra 9 275HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 9 275HX) and Intel 600 series,Intel 700 series (Core i5-13600K).

Both processors feature an unlocked multiplier for overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — Intel Arc Graphics (Core Ultra 9 275HX) and UHD Graphics 770 (Core i5-13600K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core Ultra 9 275HX targets High-End Gaming Laptop, Core i5-13600K targets Desktop. Direct competitor: Core Ultra 9 275HX rivals Ryzen 9 9955HX.