Ryzen 7 7840HS vs Core i7-9700K

The Ryzen 7 7840HS packs 8 cores / 16 threads, matching the Core i7-9700K's 8 cores. Boost clocks reach 5.1 GHz on the Ryzen 7 7840HS versus 4.9 GHz on the Core i7-9700K — a 4% clock advantage for the Ryzen 7 7840HS (base: 3.8 GHz vs 3.6 GHz). The Ryzen 7 7840HS uses the Phoenix-HS (Zen 4) (2023) architecture (4 nm), while the Core i7-9700K uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Ryzen 7 7840HS scores 28,538 against the Core i7-9700K's 14,397 — a 65.9% lead for the Ryzen 7 7840HS. L3 cache: 16 MB (total) on the Ryzen 7 7840HS vs 12 MB (total) on the Core i7-9700K.

The Ryzen 7 7840HS uses the FP8 socket (PCIe 4.0), while the Core i7-9700K uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5-7500 / DDR5-5600 on the Ryzen 7 7840HS versus DDR4-2666 on the Core i7-9700K — the Ryzen 7 7840HS supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7840HS 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. PCIe lanes: 20 (Ryzen 7 7840HS) vs 16 (Core i7-9700K) — the Ryzen 7 7840HS offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FP7,FP7r2,FP8 (Ryzen 7 7840HS) and Intel 300 series (Core i7-9700K).

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 7 7840HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V, SVM (Ryzen 7 7840HS) vs VT-x, VT-d (Core i7-9700K). Both include integrated graphics — Radeon 780M (Ryzen 7 7840HS) and UHD Graphics 630 (Core i7-9700K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7840HS targets High-performance Laptop / Mini-PC, Core i7-9700K targets Desktop. Direct competitor: Ryzen 7 7840HS rivals Core i7-13700H.