Core i9-13905H vs Ryzen 9 7940HS

The Core i9-13905H packs 14 cores / 20 threads, while the Ryzen 9 7940HS offers 8 cores / 16 threads — the Core i9-13905H has 6 more cores. Boost clocks reach 5.4 GHz on the Core i9-13905H versus 5.2 GHz on the Ryzen 9 7940HS — a 3.8% clock advantage for the Core i9-13905H (base: 2.6 GHz vs 4 GHz). The Core i9-13905H uses the Raptor Lake-H (2023−2024) architecture (Intel 7 nm), while the Ryzen 9 7940HS uses Phoenix-HS (Zen 4) (2023) (4 nm). In PassMark, the Core i9-13905H scores 29,807 against the Ryzen 9 7940HS's 29,986 — a 0.6% lead for the Ryzen 9 7940HS. Cinebench R23 multi-core: 19,384 vs 17,443 (10.5% advantage for the Core i9-13905H). Geekbench 6 single-core — the metric most relevant to gaming — records 2,300 vs 2,646, a 14% lead for the Ryzen 9 7940HS that directly translates to higher frame rates. Multi-core Geekbench: 14,000 vs 11,591 (18.8% advantage for the Core i9-13905H). L3 cache: 24 MB (total) on the Core i9-13905H vs 16 MB (total) on the Ryzen 9 7940HS.

The Core i9-13905H uses the FCBGA1792 socket (PCIe 4.0), while the Ryzen 9 7940HS uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. The Ryzen 9 7940HS supports up to 256 GB of RAM compared to 64 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Core i9-13905H) vs 20 (Ryzen 9 7940HS) — the Ryzen 9 7940HS offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WM790,HM770 (Core i9-13905H) and FP8,FP7 (Ryzen 9 7940HS).

Only the Ryzen 9 7940HS has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 9 7940HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i9-13905H) vs AMD-V (Ryzen 9 7940HS). Both include integrated graphics — Iris Xe 96EU (Core i9-13905H) and Radeon 780M (Ryzen 9 7940HS) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i9-13905H targets Workstation, Ryzen 9 7940HS targets Thin-and-light Performance. Direct competitor: Core i9-13905H rivals Ryzen 9 7940HS; Ryzen 9 7940HS rivals Core i9-13900H.