Ryzen 5 8645HS vs Core i9-11980HK

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

The Ryzen 5 8645HS uses the FP8 socket (PCIe 4.0), while the Core i9-11980HK uses FCBGA1787 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-7500 on the Ryzen 5 8645HS versus DDR4-3200 on the Core i9-11980HK — 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: SoC (Ryzen 5 8645HS) and HM570,WM590 (Core i9-11980HK).

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: AMD-V (SVM) (Ryzen 5 8645HS) vs VT-x, VT-d, EPT (Core i9-11980HK). Both include integrated graphics — Radeon 760M (Ryzen 5 8645HS) and UHD Graphics 32EUs (Core i9-11980HK) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming, Core i9-11980HK targets Enthusiast Gaming Laptop. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H; Core i9-11980HK rivals Ryzen 9 5900HX.