Core i9-11980HK vs Ryzen 5 8645HS

The Core i9-11980HK packs 8 cores / 16 threads, while the Ryzen 5 8645HS offers 6 cores / 12 threads — the Core i9-11980HK has 2 more cores. Boost clocks reach 5 GHz on the Core i9-11980HK versus 5 GHz on the Ryzen 5 8645HS — identical boost frequencies (base: 2.6 GHz vs 4.3 GHz). The Core i9-11980HK uses the Tiger Lake-HK (2021) architecture (10 nm SuperFin), while the Ryzen 5 8645HS uses Hawk Point-HS (Zen 4) (2023−2024) (4 nm). In PassMark, the Core i9-11980HK scores 22,244 against the Ryzen 5 8645HS's 22,257 — a 0.1% lead for the Ryzen 5 8645HS. Cinebench R23 multi-core: 14,029 vs 13,316 (5.2% advantage for the Core i9-11980HK). Geekbench 6 single-core — the metric most relevant to gaming — records 2,129 vs 2,574, a 18.9% lead for the Ryzen 5 8645HS that directly translates to higher frame rates. Multi-core Geekbench: 9,766 vs 10,675 (8.9% advantage for the Ryzen 5 8645HS). L3 cache: 24 MB (total) on the Core i9-11980HK vs 16 MB (total) on the Ryzen 5 8645HS.

The Core i9-11980HK uses the FCBGA1787 socket (PCIe 4.0), while the Ryzen 5 8645HS uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i9-11980HK versus LPDDR5x-7500 on the Ryzen 5 8645HS — the Ryzen 5 8645HS supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 8645HS supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: HM570,WM590 (Core i9-11980HK) and SoC (Ryzen 5 8645HS).

Only the Core i9-11980HK has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, EPT (Core i9-11980HK) vs AMD-V (SVM) (Ryzen 5 8645HS). Both include integrated graphics — UHD Graphics 32EUs (Core i9-11980HK) and Radeon 760M (Ryzen 5 8645HS) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i9-11980HK targets Enthusiast Gaming Laptop, Ryzen 5 8645HS targets Gaming. Direct competitor: Core i9-11980HK rivals Ryzen 9 5900HX; Ryzen 5 8645HS rivals Core i5-13500H.