Core i7-9850H vs Core i5-1230U

The Core i7-9850H packs 6 cores / 12 threads, while the Core i5-1230U offers 10 cores / 12 threads — the Core i5-1230U has 4 more cores. Boost clocks reach 4.6 GHz on the Core i7-9850H versus 4.4 GHz on the Core i5-1230U — a 4.4% clock advantage for the Core i7-9850H (base: 2.6 GHz vs 1 GHz). The Core i7-9850H uses the Coffee Lake-HR (2019) architecture (14 nm), while the Core i5-1230U uses Alder Lake-U (2022) (Intel 7 nm). In PassMark, the Core i7-9850H scores 10,862 against the Core i5-1230U's 10,995 — a 1.2% lead for the Core i5-1230U. Geekbench 6 single-core — the metric most relevant to gaming — records 1,250 vs 1,625, a 26.1% lead for the Core i5-1230U that directly translates to higher frame rates. Both processors carry 12 MB (total) of L3 cache.

The Core i7-9850H uses the BGA1440 socket (PCIe 3.0), while the Core i5-1230U uses FCBGA1781 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9850H versus LPDDR5-5200 on the Core i5-1230U — the Core i5-1230U supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9850H supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-9850H) vs 14 (Core i5-1230U) — the Core i7-9850H offers 2 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i7-9850H) vs VT-x, VT-d, EPT (Core i5-1230U). Both include integrated graphics — Intel UHD Graphics 630 (Core i7-9850H) and Iris Xe Graphics 80EU (Core i5-1230U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9850H targets High Performance Laptop, Core i5-1230U targets Thin & Light Laptop. Direct competitor: Core i5-1230U rivals Ryzen 5 5600U.