Core i9-13900E vs Core Ultra 5 235HX

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

The Core i9-13900E uses the LGA1700 socket (PCIe 5.0), while the Core Ultra 5 235HX uses FCBGA2114 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5600 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: 20 (Core i9-13900E) vs 24 (Core Ultra 5 235HX) — the Core Ultra 5 235HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: W680,Q670,Z790,H770 (Core i9-13900E) and HM870,WM880 (Core Ultra 5 235HX).

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 UHD Graphics 770 (Core i9-13900E) and Intel Graphics (48EU) (Core Ultra 5 235HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i9-13900E targets Embedded, Core Ultra 5 235HX targets Laptop.