Core i5-12400F vs Core i9-10920X

The Core i5-12400F packs 6 cores / 12 threads, while the Core i9-10920X offers 12 cores / 24 threads — the Core i9-10920X has 6 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.8 GHz on the Core i9-10920X — a 8.7% clock advantage for the Core i9-10920X (base: 2.5 GHz vs 3.5 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Core i9-10920X uses Cascade Lake-X (2019) (14 nm). In PassMark, the Core i5-12400F scores 19,532 against the Core i9-10920X's 25,875 — a 27.9% lead for the Core i9-10920X. Cinebench R23 multi-core: 12,380 vs 15,458 (22.1% advantage for the Core i9-10920X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 1,250, a 30.5% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 12,000 (179.2% advantage for the Core i9-10920X). L3 cache: 18 MB (total) on the Core i5-12400F vs 19.25 MB (total) on the Core i9-10920X.

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Core i9-10920X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR4-2933 on the Core i9-10920X — the Core i5-12400F supports 63.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-10920X supports up to 256 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Memory channels: 2 (Core i5-12400F) vs 4 (Core i9-10920X). PCIe lanes: 20 (Core i5-12400F) vs 44 (Core i9-10920X) — the Core i9-10920X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and X299 (Core i9-10920X).

Both support VT-x, VT-d, EPT virtualization. Primary use case: Core i5-12400F targets Gaming Performance/Value, Core i9-10920X targets HEDT/Workstation. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

At launch, the Core i5-12400F was priced at $174, while the Core i9-10920X came in at $689. On launch pricing ($174 vs $689), Core i5-12400F was $515 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 37.6 pts/$ for the Core i9-10920X — making the Core i5-12400F the 99.7% better value option.

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