Core Ultra 5 235HX vs Core i9-13900E

The Core Ultra 5 235HX packs 14 cores / 14 threads, while the Core i9-13900E offers 24 cores / 32 threads — the Core i9-13900E has 10 more cores. Boost clocks reach 5.1 GHz on the Core Ultra 5 235HX versus 5.2 GHz on the Core i9-13900E — a 1.9% clock advantage for the Core i9-13900E (base: 2.9 GHz vs 1.8 GHz). The Core Ultra 5 235HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Core i9-13900E uses Raptor Lake-S (2023−2024) (10 nm). In PassMark, the Core Ultra 5 235HX scores 40,122 against the Core i9-13900E's 40,476 — a 0.9% lead for the Core i9-13900E. Geekbench 6 single-core — the metric most relevant to gaming — records 2,600 vs 2,606, a 0.2% lead for the Core i9-13900E that directly translates to higher frame rates. Multi-core Geekbench: 14,000 vs 15,000 (6.9% advantage for the Core i9-13900E). L3 cache: 24 MB (total) on the Core Ultra 5 235HX vs 36 MB (total) on the Core i9-13900E.

The Core Ultra 5 235HX uses the FCBGA2114 socket (PCIe 5.0), while the Core i9-13900E uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Core Ultra 5 235HX supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 5 235HX) vs 20 (Core i9-13900E) — the Core Ultra 5 235HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 5 235HX) and W680,Q670,Z790,H770 (Core i9-13900E).

Only the Core Ultra 5 235HX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support VT-x, VT-d virtualization. Both include integrated graphics — Intel Graphics (48EU) (Core Ultra 5 235HX) and Intel UHD Graphics 770 (Core i9-13900E) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core Ultra 5 235HX targets Laptop, Core i9-13900E targets Embedded.