Core i9-13905H vs Core i5-13400F

The Core i9-13905H packs 14 cores / 20 threads, while the Core i5-13400F offers 10 cores / 16 threads — the Core i9-13905H has 4 more cores. Boost clocks reach 5.4 GHz on the Core i9-13905H versus 4.6 GHz on the Core i5-13400F — a 16% clock advantage for the Core i9-13905H (base: 2.6 GHz vs 2.5 GHz). The Core i9-13905H uses the Raptor Lake-H (2023−2024) architecture (Intel 7 nm), while the Core i5-13400F uses Raptor Lake-S (2023−2024) (Intel 7 nm). In PassMark, the Core i9-13905H scores 29,807 against the Core i5-13400F's 25,029 — a 17.4% lead for the Core i9-13905H. Cinebench R23 multi-core: 19,384 vs 16,211 (17.8% advantage for the Core i9-13905H). Geekbench 6 single-core — the metric most relevant to gaming — records 2,300 vs 2,407, a 4.5% lead for the Core i5-13400F that directly translates to higher frame rates. Multi-core Geekbench: 14,000 vs 11,408 (20.4% advantage for the Core i9-13905H). L3 cache: 24 MB (total) on the Core i9-13905H vs 20 MB (total) on the Core i5-13400F.

The Core i9-13905H uses the FCBGA1792 socket (PCIe 4.0), while the Core i5-13400F uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. The Core i5-13400F supports up to 192 GB of RAM compared to 64 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Core i9-13905H) vs 20 (Core i5-13400F) — the Core i5-13400F offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WM790,HM770 (Core i9-13905H) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-13400F).

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. The Core i9-13905H includes integrated graphics (Iris Xe 96EU), while the Core i5-13400F requires a dedicated GPU. Primary use case: Core i9-13905H targets Workstation, Core i5-13400F targets Gaming. Direct competitor: Core i9-13905H rivals Ryzen 9 7940HS; Core i5-13400F rivals Ryzen 5 7600.