Core i7-8750H vs Core i7-11390H

The Core i7-8750H packs 6 cores / 12 threads, while the Core i7-11390H offers 4 cores / 8 threads — the Core i7-8750H has 2 more cores. Boost clocks reach 4.1 GHz on the Core i7-8750H versus 5 GHz on the Core i7-11390H — a 19.8% clock advantage for the Core i7-11390H (base: 2.2 GHz vs 2.9 GHz). The Core i7-8750H uses the Coffee Lake-H (2018−2019) architecture (14 nm), while the Core i7-11390H uses Tiger Lake-H35 (2021) (10 nm SuperFin). In PassMark, the Core i7-8750H scores 9,769 against the Core i7-11390H's 9,798 — a 0.3% lead for the Core i7-11390H. L3 cache: 9 MB on the Core i7-8750H vs 12 MB (total) on the Core i7-11390H.

The Core i7-8750H uses the BGA1440 socket (PCIe 3.0), while the Core i7-11390H uses FCBGA1449 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. Both support up to 64 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-8750H) vs 20 (Core i7-11390H) — the Core i7-11390H offers 4 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Only the Core i7-11390H supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-8750H) vs VT-x, VT-d, EPT (Core i7-11390H). Both include integrated graphics — UHD Graphics 630 (Core i7-8750H) and Iris Xe Graphics 96EU (Core i7-11390H) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-8750H targets Mobile, Core i7-11390H targets Thin & Light Gaming Laptop. Direct competitor: Core i7-11390H rivals Ryzen 7 5800U.